TWI612354B - Optical lens assembly with dual molded lens element and electronic device including same assembly - Google Patents

Abstract

An optical lens comprising at least one lens which is a two-color molded lens, and the two-color molded lens comprises a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective area and a peripheral area. The peripheral region surrounds the optically active region and includes a plurality of first internal straight strip structures. The light absorbing portion is annular and surrounds the central axis, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the transparent portion. The two-color molded lens is formed by injection molding and is integrally formed, and the light absorbing portion includes plural second. The inner straight strip structure has a second inner straight strip structure corresponding to and connected to the first inner straight strip structure, and each of the second inner straight strip structures is a straight strip wedge structure. Thereby, the stray light reflection in the optical lens is reduced, and the dimensional accuracy of the optical element is ensured.

Description

Optical lens and electron containing two-color molded lens Device

The present invention relates to an optical lens, and more particularly to an optical lens for use in a portable electronic device.

Plastic lenses are usually used to effectively reduce the production cost of optical lenses. The conventional plastic lenses are mainly manufactured by injection molding. Since the surface of the plastic lens is smooth and bright and has high reflectivity, when stray light is incident on the plastic lens. On the surface, the reflected light intensity of stray light cannot be effectively attenuated.

Referring to Figure 13, Figure 13 is a schematic view of a prior art optical lens 90. It can be seen from Fig. 13 that after the light L enters the optical lens 90, the incident angle of the light L on the surface of the lens 91 is greater than its critical angle to cause total reflection, and then incident on the interface between the lens 91 and the spacer ring 96, and the light L continues. The lens 91, the spacer rings 96, 97, and the surface of the lens barrel 99 are multi-reflected to cause stray light to enter the imaging surface 98. Therefore, prior art optical lenses The stray light that is not sufficiently attenuated in 90 will cause problems such as ghosting on the image, thereby affecting the image quality of the optical lens 90.

In addition, the current miniaturized optical lens usually includes a plurality of plastic lenses, so that the plastic lens can form a small aspherical lens with extremely high curvature to improve the image quality, but the small aspheric lens often produces insufficient lens precision. Or the problem is not easy to answer.

In summary, how to simultaneously consider the requirements of miniaturized optical lenses to suppress stray light and precision, and to improve the imaging quality of miniaturized optical lenses to meet the high-standard imaging requirements of electronic devices, has become the most important issue today. one.

The invention provides an optical lens and an electronic device. The two-color molded lens of the optical lens comprises at least a corresponding second inner straight strip structure and a first inner straight strip structure, or a corresponding and connected second inner ring structure. And a first inner annular structure to reduce stray light reflection in the optical lens and ensure dimensional accuracy of the optical component.

According to the present invention, there is provided an optical lens comprising at least one lens which is a two-color molded lens, and the two-color molded lens comprises a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective area and a peripheral area. The peripheral region surrounds the optically active region and includes a plurality of first inner straight strip structures that are regularly arranged along the circumferential direction of the central axis of the two-color molded lens. The light absorbing portion is located on at least one of the object side surface and the image side surface of the two-color molded lens, and the light absorbing portion is annular and surrounds the central axis, and the light absorbing portion is plastic The material and color are different from the plastic material and color of the transparent part. The two-color molded lens is formed by injection molding and is integrally formed. The light absorbing part comprises a plurality of second inner straight strip structures, and the second inner straight strip structure is along the central axis. The circumferential directions are regularly arranged, and the second inner straight strip structure corresponds to and connects the first inner straight strip structure, and each of the second inner straight strip structures is a straight strip wedge structure. Thereby, the stray light reflection in the optical lens can be reduced, and the dimensional accuracy of the optical element can be ensured and the assembly tolerance can be reduced.

According to the optical lens described in the preceding paragraph, the two-color molded lens can be formed by secondary injection molding. The peripheral portion of the light transmitting portion and the light absorbing portion respectively comprise an outer annular surface, and each of the first inner straight strip structures may be disposed from the central axis to the outer annular surface of the peripheral region, and each of the second inner straight strip structures may be configured by the central axis It is placed in the direction of the outer ring surface of the light absorbing portion. Each of the first inner straight strip structures may be a straight strip of raised strips. The flat surface may be located between the outer annular surface of the peripheral region and the outer annular surface of the light absorbing portion, the flat surface is surrounded and perpendicular to the central axis, and the flat surface is located in the peripheral region or the light absorbing portion. The width of the flat face is w, which satisfies the following conditions: 0.03 mm < w < 0.52 mm. The optically active area can comprise at least one aspherical surface. The number of lenses of the optical lens may be two or more. At least one of the lenses is a two-color molded lens, and the connection structure may be located at least one of a peripheral region of the two-color molded lens and the light absorbing portion, and the connection structure includes the connection surface and the bearing The connecting surface is an annular conical surface, the bearing surface is perpendicular to the central axis and the connecting surface is away from the central axis, and the connecting structure is connected with the lens adjacent to the two-color molding lens, and the connecting structure aligns the two-color molding lens with the adjacent lens The central axis. The angle between the connecting surface and the bearing surface is α, which satisfies the following conditions: 95 degrees < α < 135 degrees. The connection structure can be located in the light absorbing portion. The connection structure can be located in the peripheral zone. With the technical features of each point mentioned above, an optical lens containing a two-color molded lens can be easily produced.

According to the present invention, there is further provided an electronic device comprising a camera module comprising the optical lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the optical lens. Thereby, the camera module in the electronic device is helped to maintain image quality and meet high optical specifications.

According to the present invention, there is further provided an optical lens comprising at least one lens which is a two-color molded lens, and the two-color molded lens comprises a light transmitting portion and a light absorbing portion. The light transmitting portion includes an optical effective area and a peripheral area. The peripheral region surrounds the optically active region and includes a plurality of first inner straight strip structures that are regularly arranged along the circumferential direction of the central axis of the two-color molded lens. The light absorbing portion is located on at least one of the object side surface and the image side surface of the two-color molded lens, the light absorbing portion is annular and surrounds the central axis, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the light transmitting portion. The two-color molded lens is integrally formed by injection molding, the light absorbing portion includes a plurality of second inner straight strip structures, the second inner straight strip structure is regularly arranged along the circumferential direction of the central axis, and the second inner straight strip shape The structure corresponds to and connects the first inner straight strip structure, and the number of the second inner straight strip structures is 80 or more and 320 or less. Thereby, the balance between the two-color molded lens in eliminating stray light and manufacturing feasibility can be maintained.

According to the optical lens described in the preceding paragraph, the two-color molded lens can be formed by secondary injection molding. The peripheral portion of the light transmitting portion and the light absorbing portion respectively comprise an outer annular surface, and each of the first inner straight strip structures may be disposed from the central axis to the outer annular surface of the peripheral region, and each of the second inner straight strip structures may be configured by the central axis To the light The direction of the outer annular surface of the absorbing portion is set. Each of the first inner straight strip structures may be a straight strip of raised strips. The flat surface may be located between the outer annular surface of the peripheral region and the outer annular surface of the light absorbing portion, the flat surface is surrounded and perpendicular to the central axis, and the flat surface is located in the peripheral region or the light absorbing portion. The width of the flat face is w, which satisfies the following conditions: 0.03 mm < w < 0.52 mm. The number of lenses of the optical lens may be two or more. At least one of the lenses is a two-color molded lens, and the connection structure may be located at least one of a peripheral region of the two-color molded lens and the light absorbing portion, and the connection structure includes the connection surface and the bearing The connecting surface is an annular conical surface, the bearing surface is perpendicular to the central axis and the connecting surface is away from the central axis, and the connecting structure is connected with the lens adjacent to the two-color molding lens, and the connecting structure aligns the two-color molding lens with the adjacent lens The central axis. The angle between the connecting surface and the bearing surface is α, which satisfies the following conditions: 95 degrees < α < 135 degrees. The connection structure can be located in the light absorbing portion. The connection structure can be located in the peripheral zone. With the technical features of each point mentioned above, the density of the first inner straight strip structure and the second inner straight strip structure can be maintained, and the quality of the processing is balanced.

According to the present invention, there is further provided an electronic device comprising a camera module comprising the optical lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the optical lens. Thereby, with good imaging quality, it can meet the high-standard imaging requirements of electronic devices today.

10, 20, 30‧‧‧ electronic devices

11, 21, 31‧‧‧ camera modules

16‧‧‧Sensor components

17‧‧‧Auxiliary optics

18‧‧‧Image signal processing components

19a‧‧‧Touch screen

19b‧‧‧ button

77‧‧‧Soft circuit board

78‧‧‧Connector

14‧‧‧Autofocus components

15‧‧‧Optical anti-shake components

13‧‧‧Electronic photosensitive element

12, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900‧‧‧ optical lenses

99, 109, 209, 309, 409, 509, 609, 709, 809, 909‧‧ ‧ barrel

98, 108, 208, 308, 408, 508, 608, 708, 808, 908‧‧ ‧ imaging surface

96, 97, 106‧‧‧ spacer rings

91, 101, 102, 103, 104, 201, 202, 203, 204, 301, 302, 303, 304, 401, 402, 403, 404, 501, 502, 503, 504, 601, 602, 603, 604, 701, 702, 703, 704, 801, 802, 803, 804, 901, 902, 903, 904‧‧ lens

190, 290, 390, 490, 590, 690, 790, 890, 990‧‧‧ two-color molded lenses

170, 270, 370, 470, 570, 670, 770, 870, 970 ‧ ‧ ‧ side surface

180, 280, 380, 480, 580, 680, 780, 880, 980‧‧‧ side surface

110, 210, 310, 410, 510, 610, 710, 810, 910‧‧

113, 213, 313, 413, 513, 613, 713, 813, 913 ‧ ‧ optical effective area

114, 214, 314, 414, 514, 614, 714, 814, 914‧‧‧ surrounding areas

115, 215, 315, 615, 616, 715, 716, 915‧‧‧ first internal straight strip structure

417, 517, 617, 618, 717, 718, 817, 917‧‧‧ first internal ring structure

120, 220, 320, 420, 520, 620, 720, 820, 920 ‧ ‧ light absorption department

125, 225, 325, 625, 626, 725, 726, 925 ‧ ‧ second internal straight strip structure

427, 527, 627, 628, 727, 728, 827, 927‧‧‧ second internal annular structure

119, 129, 219, 229, 319, 329, 419, 429, 519, 529, 619, 629, 719, 729, 819, 829, 919, 929 ‧ ‧ outer annulus

130, 230, 330, 430, 530, 630, 730, 830, 930 ‧ ‧ flat faces

332, 432, 532, 831, 832, 931, 932‧‧‧ connection structure

342, 442, 542, 841, 842, 941, 942‧‧‧ joint faces

352, 452, 552, 851, 852, 951, 952‧‧ ‧ bearing surface

461, 462‧‧‧ annular groove

491, 492‧‧‧ stepped surface

671, 672, 771, 772, 872, 972‧‧ ‧ raised structures

681, 682, 781, 782, 882, 982 ‧ ‧ interval structure

71‧‧‧First fixed mold

73, 74‧‧‧Second fixed mold

75, 76‧‧‧ movable mold

PL1‧‧‧ parallel parting surface

PL2, PL3‧‧‧ vertical parting surface

L‧‧‧Light

Θ1‧‧‧ The angle between the centers of the two adjacent first inner straight strips in the circumferential direction of the central axis

Θ2‧‧‧ two second adjacent inner straight strip structures at the center of the central axis in the circumferential direction

W‧‧‧width of straight face

The angle between the α‧‧‧ joint surface and the bearing surface

Between the joint surface of the α1‧‧‧ surrounding area and the bearing surface

The angle between the connecting surface of the α2‧‧ ‧ light absorbing part and the bearing surface

φt‧‧‧The outer diameter of one of the largest outer diameters in the first internal annular structure

Φab‧‧‧The maximum inner diameter of the light absorption section

1A is a schematic view showing an optical lens according to a first embodiment of the present invention; 1B is a schematic view showing a two-color molded lens of the first embodiment; FIG. 1C is a cross-sectional view taken along line 1C-1C of FIG. 1B; and FIG. 1D is a plan view showing a light transmitting portion of the first embodiment; 1E is a plan view showing a light absorbing portion of the first embodiment; FIG. 1F is a schematic view showing a first step of the method for manufacturing a two-color molded lens of the first embodiment; and FIG. 1G is a view showing a method for manufacturing a two-color molded lens according to the first embodiment. 2A is a schematic view of an optical lens according to a second embodiment of the present invention; FIG. 2B is a schematic view showing a two-color molded lens of the second embodiment; and FIG. 2C is a cross-sectional view according to FIG. 2B. 2C-2C is a cross-sectional view; 2D is a plan view of the light transmitting portion of the second embodiment; 2E is a plan view of the light absorbing portion of the second embodiment; and FIG. 3A is a third embodiment of the present invention FIG. 3B is a schematic view showing a two-color molded lens of the third embodiment; FIG. 3C is a cross-sectional view of the cross-sectional line 3C-3C according to FIG. 3B; and FIG. 3D is a third embodiment showing the third embodiment Plan view of the light section; Figure 3E shows the third implementation 4A is a schematic view of an optical lens according to a fourth embodiment of the present invention; FIG. 4B is a schematic view showing a two-color molded lens of the fourth embodiment; and FIG. 4C is a view showing a fourth embodiment; 4D is a schematic view of a light absorbing portion of a fourth embodiment; FIG. 5A is a schematic view of an optical lens according to a fifth embodiment of the present invention; and FIG. 5B is a two-color view of the fifth embodiment; Schematic diagram of a molded lens; 5C is a schematic view showing a light transmitting portion of a fifth embodiment; FIG. 5D is a schematic view showing a light absorbing portion of a fifth embodiment; and FIG. 6A is a schematic view showing an optical lens according to a sixth embodiment of the present invention; 6B is a schematic view of the two-color molded lens of the sixth embodiment; FIG. 6C is a plan view of the light absorbing portion of the sixth embodiment; FIG. 6D is a plan view of the light transmitting portion of the sixth embodiment; A schematic view of an optical lens according to a seventh embodiment of the present invention; a seventh schematic view showing a two-color molded lens of the seventh embodiment; and a seventh plan view showing a light absorbing portion of the seventh embodiment; FIG. 8A is a schematic view of an optical lens according to an eighth embodiment of the present invention; FIG. 8B is a schematic view showing a two-color molded lens of the eighth embodiment; FIG. 8C is a view A plan view of the light absorbing portion of the eighth embodiment; a plan view of the light transmitting portion of the eighth embodiment; and a schematic view of the optical lens of the ninth embodiment of the present invention; Schematic representation of the two-color molded lens of the nine embodiment 9C is a plan view of the light absorbing portion of the ninth embodiment; FIG. 9D is a plan view of the light transmitting portion of the ninth embodiment; and FIG. 10A is a schematic view of the electronic device according to the tenth embodiment of the present invention; 10B is a block diagram of the electronic device of the tenth embodiment; FIG. 10C is a block diagram of the electronic device of the tenth embodiment; and FIG. 11 is a schematic view of the electronic device of the eleventh embodiment of the present invention; Figure 12 is a schematic view showing an electronic device according to a twelfth embodiment of the present invention; Figure 13 is a schematic view of a prior art optical lens.

<First Embodiment>

Referring to FIG. 1A, FIG. 1A is a schematic view showing an optical lens 100 according to a first embodiment of the present invention. As is apparent from FIG. 1A, the optical lens 100 includes a two-color molded lens 190, and the two-color molded lens 190 includes a light transmitting portion 110 and a light absorbing portion 120.

Referring to FIGS. 1B and 1C, FIG. 1B is a schematic view showing a two-color molded lens 190 of the first embodiment, and FIG. 1C is a cross-sectional view taken along line 1C-1C of FIG. 1B. It can be seen from FIG. 1A to FIG. 1C that the light transmitting portion 110 includes an optical effective area 113 and a peripheral area 114, and the peripheral area 114 surrounds the optical effective area 113, wherein the imaging light passes through the optical effective area 113 and forms an image on the imaging surface 108, and the optical The active area 113 can comprise a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 120 is located at at least one of the object side surface 170 and the image side surface 180 of the two-color molded lens 190 (in the first embodiment, the light absorbing portion 120 is located at the object side surface 170), wherein the object side surface 170 is two-color molded The lens 190 faces the surface of the subject (not shown), and the image side surface 180 is the surface of the two-color molded lens 190 facing the imaging surface 108. The light absorbing portion 120 is annular and surrounds the central axis of the two-color molded lens 190. The plastic material and color of the light absorbing portion 120 are different from the plastic material and color of the light transmitting portion 110, and the two-color molded lens 190 is formed by injection molding. Molding, which can be made into a light-transmitting part after secondary injection molding or secondary molding The two-color molded lens 190 of the light absorbing portion 120. In the two-color molded lens 190 of the first embodiment, the plastic material of the light absorbing portion 120 has the property of absorbing visible light, the color of which is black, and the plastic material of the light transmitting portion 110 has visible light transmission property, and the color thereof is transparent and colorless. The plastic material and color of the light absorbing portion 120 are different from the plastic material and color of the light transmitting portion 110. In other embodiments (not shown), the light absorbing portion may be located on the image side surface of the two-color molded lens, or the light absorbing portion may be located on the object side surface and the image side surface of the two-color molded lens.

Referring to FIGS. 1D and 1E, FIG. 1D is a plan view showing the light transmitting portion 110 of the first embodiment, and FIG. 1E is a plan view showing the light absorbing portion 120 of the first embodiment. As is apparent from FIGS. 1B to 1E, the peripheral region 114 includes a plurality of first inner straight strip structures 115 which are regularly arranged in the circumferential direction of the central axis of the two-color mold lens 190. The light absorbing portion 120 includes a plurality of second inner straight strip structures 125, the second inner straight strip structures 125 are regularly arranged along the circumferential direction of the central axis, and the second inner straight strip structures 125 correspond to and connect the first inner straight strips. Structure 115. Furthermore, each of the first inner straight strip structure 115 and each of the second inner straight strip structures 125 may be a continuous convex straight strip structure, such as a straight stripe stripe, a straight stripe wedge structure, or the like. A straight strip structure in which a plurality of raised structures and a plurality of spaced structures are arranged.

As can be seen from Fig. 1E, the center-interval angle of any two adjacent second inner straight strip structures 125 in the circumferential direction of the central axis is θ2, which satisfies the following condition: 0 degrees < θ2 < 18 degrees. Thereby, the optical lens 100 can be lowered The stray light reflects and ensures the dimensional accuracy of the optical components (such as the two-color molded lens 190). Preferably, the following conditions are satisfied: 0 degrees < θ2 < 10 degrees.

Further, as can be seen from FIG. 1A, the optical lens 100 sequentially includes the lenses 101, 102, and 103, the two-color molded lens 190, the lens 104, and the imaging surface 108 from the object side to the image side, wherein the lens of the optical lens 100 is five pieces. (101, 102, 103, 190, 104), and the lenses 101, 102, 103, the two-color molded lens 190, and the lens 104 are disposed on the plastic lens barrel 109 along the optical axis of the optical lens 100 (i.e., the central axis of the two-color molded lens 190). Inside. In other embodiments (not shown), the lens of the optical lens can be four, six, seven or more lenses.

It can be seen from FIG. 1A to FIG. 1C that after the light L enters the optical lens 100, the incident angle of the light L on the surface of the lens 190 is greater than its critical angle to cause total reflection, and then incident on the first inner straight strip structure 115 and the second. The interface between the inner straight strip structures 125, the light rays L are reflected between the fine first inner straight strip structure 115 and the second inner straight strip structure 125, and are absorbed by the second inner straight strip structure 125 to attenuate the intensity. Thereby, the stray light incident on the imaging surface 108 is effectively reduced, thereby maintaining the imaging quality of the optical lens 100.

In detail, referring to FIG. 1F and FIG. 1G, FIG. 1F is a schematic view showing a first step of the manufacturing method of the two-color molded lens 190 of the first embodiment, and FIG. 1G is a view showing the manufacturing of the two-color molded lens 190 of the first embodiment. A schematic diagram of the second step of the method. As can be seen from FIGS. 1F and 1G, the two-color molded lens 190 can be formed by secondary injection molding. Thereby, the dimensional accuracy of the optical element can be ensured and the assembly tolerance of the optical lens 100 can be reduced.

In the first step of the manufacturing method of the two-color mold lens 190, the light absorbing portion 120 is formed by injection molding through the cavity between the movable molds 75, 76 and the first fixed mold 71. Next, in the second step of the manufacturing method of the two-color mold lens 190, the movable molds 75, 76 are moved to the second fixed molds 73, 74 to form another mold, and the formed light absorbing portion 120 is linked to the other In the cavity, the light transmitting portion 110 is formed by another injection molding method, and the light transmitting portion 110 and the light absorbing portion 120 having different plastic materials and colors are integrally molded into a two-color molding lens 190 by secondary injection molding. Furthermore, in the mold design of the two-color mold lens 190 of the first embodiment, the horizontal mold part surface PL1 is between the movable mold 75 and the second fixed mold 73, the horizontal parting surface PL1 is perpendicular to the optical axis, and the two-color mold lens 190 mold is used. The main parting surface in the middle. In addition, there is a vertical parting surface PL2 between the second fixed molds 73 and 74, a vertical parting surface PL3 between the movable molds 75 and 76, and the vertical parting surfaces PL2 and PL3 are perpendicular to the horizontal parting surface PL1, by means of the mold The arrangement of the aforementioned parting surface enhances the dimensional accuracy of the two-color molded lens 190. In other embodiments (not shown), in the method of manufacturing a two-color molded lens, a light transmitting portion may be first manufactured, and then a light absorbing portion may be fabricated.

As can be seen from FIG. 1D and FIG. 1E , the peripheral region 114 of the light transmitting portion 110 further includes an outer annular surface 119 , and each of the first inner straight strip structures 115 can be disposed from the central axis toward the outer annular surface 119 of the peripheral region 114 . It can also be said that each of the first inner straight strip structures 115 can be disposed from the outer annular surface 119 in the direction of the central axis, or it can be said that the first inner straight strip structure 115 can be arranged in the direction of the central axial outer annular surface 119 to radiate. shape. The light absorbing portion 120 further includes an outer annular surface 129, and each of the second inner straight strip structures 125 can be moved from the central axis to the light absorbing portion. The outer ring surface 129 of the 120 is disposed in the direction of the outer ring surface 129. It can be said that the second inner straight strip structure 125 can be disposed from the outer ring surface 129 toward the central axis, or the second inner straight strip structure 125 can be defined by the central axis. The outer annular surface 129 is arranged in a radial direction. Thereby, the density of the first inner straight strip structure 115 and the second inner straight strip structure 125 can be maintained, and the quality of the processing can be achieved.

Each of the second inner straight strip structures 125 may be a straight strip wedge structure, that is, a straight strip structure having a narrow bottom top and a narrow top. Further, each of the second inner straight strip structures 125 has an isosceles triangle in a cross section in the circumferential direction of the central axis. The second inner straight strip structure 125 of the straight wedge structure can more effectively eliminate stray light and contribute to the release to improve the production yield of the two-color molded lens 190.

1C to 1E, in the first embodiment, the two-color molded lens 190 is made by the above-described secondary injection molding manufacturing method, and the entirety of the second inner straight strip structure 125 corresponds to the first inner straight strip structure. 115 overall. Each of the second inner straight strip structures 125 is a straight strip wedge structure, and each of the first inner straight strip structures 115 also corresponds to a straight strip wedge structure. Each of the second inner straight strip structures 125 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 190. Each of the first inner straight strip structures 115 also has the same geometry and is molded along two colors. The circumferential direction of the central axis of the lens 190 is regularly arranged, wherein the geometry of each of the first inner straight strip structures 115 and each of the second inner straight strip structures 125 may be different. The center spacing angle of any two adjacent second inner straight strip structures 125 in the circumferential direction of the central axis is θ2, and the center spacing angle of any two adjacent first inner straight strip structures 115 in the circumferential direction of the central axis corresponds to It is θ1, and θ1 = θ2. In other implementations In the example (not shown), the manner in which the first inner straight strip structure is regularly arranged is not limited to the same structure, the same pitch, or the same value of the parameter θ1, and the manner in which the second inner straight strip structure is regularly arranged is not limited to the same structure. The spacing is the same or the value of the parameter θ2 is the same, and the first inner straight strip structure and the second inner straight strip structure may be periodically arranged.

As can be seen from FIG. 1B, the flat surface 130 can be located between the outer annular surface 119 of the peripheral region 114 and the outer annular surface 129 of the light absorbing portion 120. The flat surface 130 surrounds and is perpendicular to the central axis, and the flat surface 130 is located in the peripheral region 114. Or the light absorbing portion 120. In order to make the two-color molded lens 190 easier to produce, the mold design with the injection molding has the feature of a flat surface 130 on the two-color molded lens 190. In the first embodiment, the flat face 130 is located in the peripheral zone 114.

The width of the flat face 130 is w, that is, the width of the flat face 130 in the radial direction of the central axis is w, which satisfies the following condition: 0.03 mm < w < 0.52 mm. Thereby, the value of the parameter w is maintained within a specific range, and the dimensional stability of the two-color molded lens 190 at the time of mass production can be ensured. Preferably, the following conditions are satisfied: 0.05 mm < w < 0.35 mm.

The optical effective area 113 of the light transmitting portion 110 may include at least one aspherical surface, that is, at least one of the object side surface 170 and the image side surface 180 of the two-color molded lens 190 in which the optical effective area 113 is located may be an aspherical surface. Thereby, it is helpful to eliminate optical aberrations, and the two-color molded lens 190 is applied to the high-spec optical lens 100. In the first embodiment, the optical effective area 113 includes two aspherical surfaces, which are the object side surface 170 and the image side surface 180 of the two-color molded lens 190 where the optical effective area 113 is located, respectively.

Referring to Table 1 below, the optical lens 100 according to the first embodiment of the present invention is listed in accordance with the data defined by the foregoing parameters, and is illustrated in FIG. 1B, FIG. 1D, and FIG. 1E.

<Second embodiment>

Referring to FIG. 2A, FIG. 2A is a schematic view of an optical lens 200 according to a second embodiment of the present invention. As can be seen from FIG. 2A, the optical lens 200 includes a two-color molded lens 290, and the two-color molded lens 290 includes a light transmitting portion 210 and a light absorbing portion 220.

Referring to FIGS. 2B and 2C, FIG. 2B is a schematic view of the two-color molded lens 290 of the second embodiment, and FIG. 2C is a cross-sectional view of the hatching 2C-2C according to FIG. 2B. As shown in FIG. 2A to FIG. 2C, the light transmitting portion 210 includes an optical effective area 213 and a peripheral area 214. The peripheral area 214 surrounds the optical effective area 213, wherein the imaging light passes through the optical effective area 213 and forms an image on the imaging surface 208. The active area 213 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 220 is located on the object side surface 270 of the two-color molded lens 290, wherein the object side surface 270 is a surface of the two-color molded lens 290 facing the object (not shown), and the image side surface 280 is the two-color molded lens 290 facing the image forming surface 208. s surface. The light absorbing portion 220 is annular and surrounds the central axis of the two-color molded lens 290. The plastic material of the light absorbing portion 220 has a property of absorbing visible light, and the color thereof is black, and the plastic material of the light transmitting portion 210 has The visible light transmission property is transparent and colorless. Therefore, the plastic material and color of the light absorbing portion 220 are different from the plastic material and color of the light transmitting portion 210, and the two-color molding lens 290 is formed by injection molding and integrally formed.

Referring to FIGS. 2D and 2E, FIG. 2D is a plan view of the light transmitting portion 210 of the second embodiment, and FIG. 2E is a plan view of the light absorbing portion 220 of the second embodiment. As can be seen from FIGS. 2B to 2E, the peripheral region 214 includes a plurality of first inner straight strip structures 215 which are regularly arranged in the circumferential direction of the central axis of the two-color mold lens 290. The light absorbing portion 220 includes a plurality of second inner straight strip structures 225, the second inner straight strip structures 225 are regularly arranged along the circumferential direction of the central axis, and the second inner straight strip structures 225 correspond to and connect the first inner straight strips. Structure 215.

In detail, the two-color molded lens 290 is formed by secondary injection molding. The peripheral region 214 of the light transmitting portion 210 further includes an outer annular surface 219, and each of the first inner straight strip structures 215 is disposed from the central axis toward the outer annular surface 219 of the peripheral region 214. The light absorbing portion 220 further includes an outer ring surface 229, and each of the second inner straight strip structures 225 is disposed from the central axis toward the outer ring surface 229 of the light absorbing portion 220.

Each of the first inner straight strip structures 215 is a straight strip of convex strips, and each of the first inner straight strip structures 215 has a rectangular shape in a cross section in the circumferential direction of the central axis. Thereby, the first inner straight strip structure 215 is added to the surface treatment method.

In the second embodiment, the two-color molded lens 290 is made by a secondary injection molding manufacturing method, and the entirety of the first inner straight strip structure 215 corresponds to the entirety of the second inner straight strip structure 225. Each first inner straight strip structure 215 The strips are straight strips, and the light absorbing portions 220 correspond to the straight strip grooves (not separately labeled), and the straight strip grooves are located between the two adjacent second inner straight strip structures 225. And each of the second inner straight strip structures 225 also corresponds to a straight stripe stripe. Each of the first inner straight strip structures 215 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 290. Each of the second inner straight strip structures 225 also has the same geometric structure and is molded along two colors. The circumferential direction of the central axis of the lens 290 is regularly arranged, wherein each of the first inner straight strip structures 215 is different from the geometry of each of the second inner straight strip structures 225. Any two adjacent first inner straight strip structures 215 are spaced apart from each other in the circumferential direction of the central axis by an angle θ1, and any two adjacent second inner straight strip structures 225 correspond to a central interval angle in the circumferential direction of the central axis. It is θ2, and θ1 = θ2.

As can be seen from FIG. 2A, the optical lens 200 includes lenses 201, 202, and 203, a two-color molded lens 290, a lens 204, and an imaging surface 208 from the object side to the image side. The lens of the optical lens 200 is five (201, 202). 203, 290, 204), and the lenses 201, 202, 203, the two-color molded lens 290, and the lens 204 are disposed in the plastic lens barrel 209 along the optical axis of the optical lens 200 (i.e., the central axis of the two-color molded lens 290).

2A and 2B, the flat surface 230 is located between the outer annular surface 219 of the peripheral region 214 and the outer annular surface 229 of the light absorbing portion 220. The flat surface 230 is surrounded and perpendicular to the central axis, and the flat surface 230 is located. Peripheral area 214. The optical effective area 213 includes two aspherical surfaces, which are the object side surface 270 and the image side surface 280 of the two-color molded lens 290 where the optical effective area 213 is located, respectively.

Referring to Table 2 below, the data of the parameters θ1, θ2, and w in the optical lens 200 of the second embodiment of the present invention are listed. The definitions of the parameters are the same as those of the optical lens 100 of the first embodiment, and 2B, 2D, and 2E are shown.

<Third embodiment>

Referring to FIG. 3A, FIG. 3A is a schematic view of an optical lens 300 according to a third embodiment of the present invention. As can be seen from FIG. 3A, the optical lens 300 includes a two-color molded lens 390, and the two-color molded lens 390 includes a light transmitting portion 310 and a light absorbing portion 320.

Referring to FIGS. 3B and 3C, FIG. 3B is a schematic view of the two-color molded lens 390 of the third embodiment, and FIG. 3C is a cross-sectional view of the hatching 3C-3C according to FIG. 3B. As shown in FIG. 3A to FIG. 3C, the light transmitting portion 310 includes an optical effective area 313 and a peripheral area 314. The peripheral area 314 surrounds the optical effective area 313. The imaging light passes through the optical effective area 313 and forms an image on the imaging surface 308. The active area 313 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 320 is located on the object side surface 370 of the two-color molded lens 390, wherein the object side surface 370 is a surface of the two-color molded lens 390 facing the object (not shown), and the image side surface 380 is a two-color molded lens 390 facing the image forming surface 308. s surface. The light absorbing portion 320 is annular and surrounds the central axis of the two-color molded lens 390, and the plastic material of the light absorbing portion 320 has absorption. The visible light property is black in color, and the plastic material of the light transmitting portion 310 has visible light transmission property, and the color thereof is transparent and colorless. Therefore, the plastic material and color of the light absorbing portion 320 are different from the plastic material and color of the light transmitting portion 310. And the two-color molded lens 390 is formed by injection molding and is integrally formed.

Referring to FIGS. 3D and 3E, FIG. 3D is a plan view of the light transmitting portion 310 of the third embodiment, and FIG. 3E is a plan view of the light absorbing portion 320 of the third embodiment. As can be seen from FIGS. 3B to 3E, the peripheral region 314 includes a plurality of first inner straight strip structures 315 which are regularly arranged along the circumferential direction of the central axis of the two-color mold lens 390. The light absorbing portion 320 includes a plurality of second inner straight strip structures 325, the second inner straight strip structures 325 are regularly arranged along the circumferential direction of the central axis, and the second inner straight strip structures 325 correspond to and connect the first inner straight strips. Structure 315.

In detail, the two-color molding lens 390 is made by secondary injection molding. The peripheral region 314 of the light transmitting portion 310 further includes an outer annular surface 319, and each of the first inner straight strip structures 315 is disposed from the central axis toward the outer annular surface 319 of the peripheral region 314. The light absorbing portion 320 further includes an outer ring surface 329, and each of the second inner straight strip structures 325 is disposed from the central axis toward the outer ring surface 329 of the light absorbing portion 320. Each of the second inner straight strip structures 325 is a straight strip wedge structure, and each of the second inner straight strip structures 325 has an isosceles triangle in a cross section in the circumferential direction of the central axis.

In the third embodiment, the two-color molding lens 390 is made by a secondary injection molding manufacturing method, and the entirety of the second inner straight strip structure 325 corresponds to the entirety of the first inner straight strip structure 315. Each of the second inner straight strip structures 325 is a straight strip wedge structure, and each of the first inner straight strip structures 315 also corresponds to a straight strip. Wedge structure. Each of the second inner straight strip structures 325 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 390. Each of the first inner straight strip structures 315 also has the same geometry and is molded along two colors. The circumferential direction of the central axis of the lens 390 is regularly arranged, wherein the geometry of each of the first inner straight strip structures 315 and the second inner straight strip structures 325 may be different. The center of the second inner straight strip structure 325 adjacent to the center axis is θ2 in the circumferential direction of the central axis, and the center spacing angle of any two adjacent first inner straight strip structures 315 in the circumferential direction of the central axis corresponds to It is θ1, and θ1 = θ2.

As can be seen from Fig. 3A, the number of lenses of the optical lens 300 is two or more, and one of the lenses is a two-color molded lens 390. The optical lens 300 sequentially includes lenses 301 and 302, a two-color molded lens 390, lenses 303 and 304, and an imaging surface 308 from the object side to the image side, wherein the lenses of the optical lens 300 are five (301, 302, 390, 303, 304). The lenses 301, 302, the two-color molded lens 390, and the lenses 303 and 304 are disposed in the plastic lens barrel 309 along the optical axis of the optical lens 300 (i.e., the central axis of the two-color molded lens 390).

As can be seen from FIGS. 3A and 3B, the flat surface 330 is located between the outer annular surface 319 of the peripheral region 314 and the outer annular surface 329 of the light absorbing portion 320. The flat surface 330 surrounds and is perpendicular to the central axis, and the flat surface 330 is located. Light absorbing portion 320. The optical effective area 313 includes two aspherical surfaces, which are the object side surface 370 and the image side surface 380 of the two-color molded lens 390 where the optical effective area 313 is located, respectively.

The connection structure 332 is located at least one of the peripheral region 314 of the two-color molded lens 390 and the light absorbing portion 320, and the connection structure 332 includes a connection. The surface 342 and the bearing surface 352 are an annular conical surface centered on the central axis. The bearing surface 352 is perpendicular to the central axis and is closer to the central axis than the connecting surface 342. The connection structure 332 is coupled to a lens 302 adjacent to the two-color molded lens 390, and the connection structure 332 aligns the two-color molded lens 390 with the adjacent lens 302. By the dimensional accuracy of the connection structure 332, the two-color molding lens 390 and the adjacent lens 302 have better centering precision, and the two-color molding lens 390 is applied to the high-spec optical lens 300, wherein the high-spec optical lens 300 It refers to characteristics such as larger aperture, high MTF (Modulation Transfer Function), and more uniform lens refractive index.

The angle between the connecting surface 342 and the bearing surface 352 is α, which satisfies the following conditions: 95 degrees < α < 135 degrees. Thereby, it contributes to reducing the assembly failure of the optical lens 300 and maintaining the molding efficiency of the two-color molding lens 390.

The connection structure 332 is located in the light absorbing portion 320. Thereby, the stray light transmitted between the lenses can be effectively attenuated.

Referring to Table 3 below, the data of the parameters θ1, θ2, w and α in the optical lens 300 of the third embodiment of the present invention are listed, and the definitions of the parameters are the same as those of the optical lens 100 of the first embodiment, and As shown in FIG. 3B, FIG. 3D and FIG. 3E.

<Fourth embodiment>

Referring to FIG. 4A, FIG. 4A is a schematic view showing an optical lens 400 according to a fourth embodiment of the present invention. As can be seen from FIG. 4A, the optical lens 400 includes a two-color molded lens 490, and the two-color molded lens 490 includes a light transmitting portion 410 and a light absorbing portion 420.

Referring to FIG. 4B, FIG. 4B is a schematic view showing the two-color molded lens 490 of the fourth embodiment. As shown in FIG. 4A and FIG. 4B , the light transmitting portion 410 includes an optical effective region 413 and a peripheral region 414 , and the peripheral region 414 surrounds the optical effective region 413 , wherein the imaging light passes through the optical effective region 413 and forms an image on the imaging surface 408 . The active area 413 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 420 is located at at least one of the object side surface 470 and the image side surface 480 of the two-color molded lens 490 (in the fourth embodiment, the light absorbing portion 420 is located on the object side surface 470), wherein the object side surface 470 is two-color molded The lens 490 faces the surface of the subject (not shown), and the image side surface 480 is the surface of the two-color molded lens 490 facing the imaging surface 408. The light absorbing portion 420 is annular and surrounds the central axis of the two-color molding lens 490. The plastic material and color of the light absorbing portion 420 are different from the plastic material and color of the light transmitting portion 410, and the two-color molding lens 490 is formed by injection molding. Molding, wherein a two-color molding lens 490 including a light transmitting portion 410 and a light absorbing portion 420 can be formed by secondary injection molding or secondary molding. In the two-color molded lens 490 of the fourth embodiment, the plastic material of the light absorbing portion 420 has the property of absorbing visible light, the color of which is black, and the plastic material of the light transmitting portion 410 has visible light transmission property, and the color thereof is transparent and colorless. The plastic material and color of the light absorbing portion 420 are different from the plastic material and color of the light transmitting portion 410. in In other embodiments (not shown), the light absorbing portion may be located on the image side surface of the two-color molded lens, or the light absorbing portion may be located on the object side surface and the image side surface of the two-color molded lens.

Referring to FIG. 4C and FIG. 4D, FIG. 4C is a schematic view showing the light transmitting portion 410 of the fourth embodiment, and FIG. 4D is a schematic view showing the light absorbing portion 420 of the fourth embodiment. As can be seen from FIGS. 4B to 4D, the peripheral region 414 includes a plurality of first inner annular structures 417 that are concentrically aligned with respect to the central axis of the two-color molded lens 490. The light absorbing portion 420 includes a plurality of second inner annular structures 427 that are concentrically arranged with respect to the central axis, and the second inner annular structure 427 corresponds to and connects the first inner annular structures 417. Furthermore, each of the first inner annular structure 417 and each of the second inner annular structures 427 may be a continuous convex annular structure, or may be a circular structure in which a plurality of convex structures and a plurality of spaced structures are arranged.

As can be seen from Fig. 4B, the outer diameter of one of the largest outer diameters of the first inner annular structure 417 is φt, and the maximum inner diameter of the light absorbing portion 420 is φab, which satisfies the following condition: 1.0 < φt / φab < 2.5. Thereby, the stray light reflection in the optical lens 400 can be reduced, and the two-color mold lens 490 can maintain its structural strength under the premise of miniaturization, and good optical quality can be obtained after injection molding. Preferably, the following conditions are satisfied: 1.05 < φt / φab < 2.0.

In detail, as can be seen from FIGS. 4B to 4D, the two-color molded lens 490 can be formed by secondary injection molding. Thereby, the dimensional accuracy of the optical element (such as the two-color molded lens 490) and the assembly tolerance of the optical lens 400 can be ensured.

The annular groove 461 can be formed in the first inner annular structure 417, and the annular groove 461 includes a plurality of stepped surfaces 491. An annular groove 462 can be formed in the second inner annular structure 427, and the annular groove 462 includes a plurality of stepped surfaces 492. Thereby, the first inner annular structure 417 and the second inner annular structure 427 can be achieved by a relatively easy-to-apply processing method, and the appearance stability of the minute structure can be maintained, and the molding result can reach the expected result of the design drawing.

The number of stepped surfaces 491 of the annular groove 461 may be 4 or more and 14 or less, wherein the number of the stepped surfaces 491 refers to the number of surfaces of the vertical central axes of the one annular groove 461. The number of stepped surfaces 492 of the annular groove 462 may be four or more and 14 or less, wherein the number of the stepped surfaces 492 refers to the number of surfaces of the vertical central axes of the one annular groove 462. Thereby, the annular groove 461 and the annular groove 462 can have a more defined stepped structure to ensure the effect of attenuating stray light.

In the fourth embodiment, the number of the first inner annular structures 417 is two, wherein the side of the first inner annular structure 417 that is farther away from the outer annular surface 419 is adjacent to the outer annular surface 419 and away from the outer annular surface 419. Two annular grooves 461 are formed on one side (the number of corresponding stepped surfaces 491 is seven and three, respectively), so the number of annular grooves 461 is two. The number of the second inner annular structures 427 is two, wherein the side closer to the outer annular surface 429 of the second inner annular structure 427 closer to the outer annular surface 429 and the side remote from the outer annular surface 429 are respectively formed into two The annular groove 462 (the number of corresponding stepped surfaces 492 is 7 and 6 respectively), so the number of the annular grooves 462 is two.

In the fourth embodiment, the two-color molding lens 490 is made by a secondary injection molding manufacturing method, and each of the first inner annular structure 417 and each of the second inner annular structures 427 is a continuous convex annular structure, the first inner portion. The entirety of the annular structure 417 corresponds to the entirety of the second inner annular structure 427. Each of the first inner annular structures 417 corresponds to each of the annular grooves 462, and each of the second inner annular structures 427 corresponds to each of the annular grooves 461.

As can be seen from Fig. 4A, the number of lenses of the optical lens 400 is two or more, and one of the lenses is a two-color molded lens 490. The optical lens 400 sequentially includes lenses 401 and 402, a two-color molded lens 490, lenses 403 and 404, and an imaging surface 408 from the object side to the image side, wherein the lens of the optical lens 400 is five pieces (401, 402, 490, 403, 404). The lenses 401, 402, the two-color molded lens 490, and the lenses 403 and 404 are disposed in the plastic lens barrel 409 along the optical axis of the optical lens 400 (i.e., the central axis of the two-color molded lens 490). In other embodiments (not shown), the lens of the optical lens can be four, six, seven or more lenses.

As can be seen from FIGS. 4A and 4B, the flat surface 430 is located between the outer annular surface 419 of the peripheral region 414 and the outer annular surface 429 of the light absorbing portion 420. The flat surface 430 is surrounded and perpendicular to the central axis, and the flat surface 430 is located. The light absorbing portion 420, wherein the flat surface 430 has a width w, that is, the width of the flat surface 430 in the radial direction of the central axis is w. The optical effective area 413 includes two aspherical surfaces, respectively an object side surface 470 and an image side surface 480 of the two-color molded lens 490 in which the optical effective area 413 is located.

The connection structure 432 can be located in at least one of the peripheral region 414 of the two-color molded lens 490 and the light absorbing portion 420, and the connection structure 432 includes The joint surface 442 and the bearing surface 452 are an annular conical surface centered on the central axis. The bearing surface 452 is perpendicular to the central axis and is closer to the central axis than the connecting surface 442. The connection structure 432 is coupled to a lens 402 adjacent the two-color molded lens 490, and the connection structure 432 aligns the two-color molded lens 490 with the adjacent lens 402. By the dimensional accuracy of the connecting structure 432, the two-color molding lens 490 and the adjacent lens 402 have better centering precision, and the two-color molding lens 490 is applied to the high-spec optical lens 400, wherein the high-spec optical lens 400 It refers to characteristics such as larger aperture, high MTF (Modulation Transfer Function), and more uniform lens refractive index.

The angle between the connecting surface 442 and the bearing surface 452 is α, which satisfies the following conditions: 95 degrees < α < 135 degrees. Thereby, it contributes to reducing the assembly failure of the optical lens 400 and maintaining the molding efficiency of the two-color mold lens 490.

The connection structure 432 can be located at the light absorbing portion 420. Thereby, the stray light transmitted between the lenses can be effectively attenuated.

Referring to Table 4 below, the optical lens 400 according to the fourth embodiment of the present invention is listed according to the data defined by the foregoing parameters, and is shown in FIG. 4B.

<Fifth Embodiment>

Referring to FIG. 5A, FIG. 5A is a schematic view of an optical lens 500 according to a fifth embodiment of the present invention. As can be seen from FIG. 5A, the optical lens 500 includes a two-color molded lens 590, and the two-color molded lens 590 includes a light transmitting portion 510 and a light absorbing portion 520.

Referring to FIG. 5B, FIG. 5B is a schematic view showing the two-color molded lens 590 of the fifth embodiment. As shown in FIGS. 5A and 5B, the light transmitting portion 510 includes an optical effective region 513 and a peripheral region 514. The peripheral region 514 surrounds the optical effective region 513. The imaging light passes through the optical effective region 513 and forms an image on the imaging surface 508. The active area 513 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 520 is located on the object side surface 570 of the two-color molded lens 590, wherein the object side surface 570 is a surface of the two-color molded lens 590 facing the object (not shown), and the image side surface 580 is a two-color molded lens 590 facing the image forming surface 508. s surface. The light absorbing portion 520 is annular and surrounds the central axis of the two-color molded lens 590. The plastic material of the light absorbing portion 520 has the property of absorbing visible light, the color of which is black, and the plastic material of the transparent portion 510 has visible light penetrating properties, and the color thereof The material and color of the light absorbing portion 520 are different from the plastic material and color of the light transmitting portion 510, and the two-color molding lens 590 is formed by injection molding and integrally formed.

Referring to FIGS. 5C and 5D, FIG. 5C is a schematic view of the light transmitting portion 510 of the fifth embodiment, and FIG. 5D is a schematic view of the light absorbing portion 520 of the fifth embodiment. As can be seen from FIGS. 5B-5D, the peripheral region 514 includes a plurality of first inner annular structures 517 that are concentrically aligned with respect to a central axis of the two-color molded lens 590. Light absorbing part 520 includes a plurality of second inner annular structures 527 that are concentrically aligned with respect to a central axis, and a second inner annular structure 527 that corresponds to and connects with the first inner annular structure 517.

In detail, in the fifth embodiment, the two-color molding lens 590 is formed by secondary injection molding. Each of the first inner annular structure 517 and each of the second inner annular structures 527 is a continuous convex annular structure, and the entirety of the first inner annular structure 517 corresponds to the entirety of the second inner annular structure 527. Each of the first inner annular structures 517 corresponds to each of the annular grooves (not otherwise labeled) of the light absorbing portion 520, and the annular grooves may be located between the two adjacent second inner annular structures 527. Each of the second inner annular structures 527 corresponds to each annular groove (not labeled) of the light transmitting portion 510, and the annular groove may be located between the two adjacent first inner annular structures 517.

As can be seen from FIG. 5A, the optical lens 500 includes the lenses 501 and 502, the two-color molded lens 590, the lenses 503 and 504, and the imaging surface 508 from the object side to the image side. The lens of the optical lens 500 is five pieces (501, 502). 590, 503, 504), and the lenses 501, 502, the two-color molded lens 590, and the lenses 503 and 504 are disposed in the plastic lens barrel 509 along the optical axis of the optical lens 500 (i.e., the central axis of the two-color molded lens 590).

As can be seen from FIGS. 5A and 5B, the flat surface 530 is located between the outer annular surface 519 of the peripheral region 514 and the outer annular surface 529 of the light absorbing portion 520. The flat surface 530 is surrounded and perpendicular to the central axis, and the flat surface 530 is located. Light absorbing portion 520. The optical effective area 513 includes two aspherical surfaces, which are the object side surface 570 and the image side surface 580 of the two-color molded lens 590 where the optical effective area 513 is located, respectively.

The connecting structure 532 is located in the light absorbing portion 520 of the two-color molded lens 590. The connecting structure 532 includes a connecting surface 542 and an bearing surface 552. The connecting surface 542 is an annular conical surface centered on the central axis, and the bearing surface 552 is perpendicular to the central axis. And the connecting surface 542 is away from the central axis. The connection structure 532 is coupled to a lens 502 adjacent the two-color molded lens 590, and the connection structure 532 aligns the two-color molded lens 590 with the adjacent lens 502.

Referring to Table 5 below, the data of the parameters w, α, φt, φab, and φt/φab in the optical lens 500 of the fifth embodiment of the present invention are listed, and each parameter is defined as the optical lens of the fourth embodiment. 400 is the same and is as shown in Figure 5B.

<Sixth embodiment>

Referring to FIG. 6A, FIG. 6A is a schematic view of an optical lens 600 according to a sixth embodiment of the present invention. As can be seen from FIG. 6A, the optical lens 600 includes a two-color molded lens 690, and the two-color molded lens 690 includes a light transmitting portion 610 and a light absorbing portion 620.

Referring to FIG. 6B, FIG. 6B is a schematic view of the two-color molded lens 690 of the sixth embodiment. As shown in FIGS. 6A and 6B, the light transmitting portion 610 includes an optical effective area 613 and a peripheral area 614. The peripheral area 614 surrounds the optical effective area 613, wherein the imaging light passes through the optical effective area 613 and forms an image on the imaging surface 608. The active area 613 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 620 is located on the object side surface 670 of the two-color molded lens 690, wherein the object side surface 670 is a surface of the two-color molded lens 690 facing the object (not shown), and the image side surface 680 is a two-color molded lens 690 facing the image forming surface 608. s surface. The light absorbing portion 620 is annular and surrounds the central axis of the two-color molded lens 690. The plastic material of the light absorbing portion 620 has the property of absorbing visible light, the color of which is black, and the plastic material of the transparent portion 610 has visible light transmission properties, and the color thereof The material and color of the light absorbing portion 620 are different from the plastic material and color of the light transmitting portion 610, and the two-color molding lens 690 is formed by injection molding and integrally formed.

Referring to FIGS. 6C and 6D, FIG. 6C is a plan view of the light absorbing portion 620 of the sixth embodiment, and FIG. 6D is a plan view showing the light transmitting portion 610 of the sixth embodiment. As can be seen from FIGS. 6B to 6D, the peripheral region 614 includes a plurality of first inner straight strip structures 615 and 616, and the first inner straight strip structures 615 and 616 are alternately arranged along the circumferential direction of the central axis of the two-color mold lens 690. . The light absorbing portion 620 includes a plurality of second inner straight strip structures 625 and 626 which are alternately arranged along the circumferential direction of the central axis, and the second inner straight strip structures 625 and 626 correspond to each other. The first inner straight strip structures 615 and 616 are connected.

In detail, the two-color molded lens 690 is made by secondary injection molding. The peripheral region 614 of the light transmitting portion 610 further includes an outer annular surface 619, and each of the first inner straight strip structures 615 and 616 is disposed from the central axis toward the outer annular surface 619 of the peripheral region 614. The light absorbing portion 620 further includes an outer ring surface 629, and each of the second inner straight strip structures 625 and 626 is disposed from the central axis toward the outer ring surface 629 of the light absorbing portion 620.

As can be seen from FIGS. 6B and 6C, each of the second inner straight strip structures 625 and 626 includes a plurality of raised structures 672 and a plurality of spaced structures 682, ie, the second inner straight strip structures 625 and 626 are formed by a plurality of raised structures. 672 and the plurality of spacer structures 682 are arranged in a straight strip shape. Thereby, the second inner straight strip structures 625 and 626 further have two-dimensional structural features, which can improve the denseness of the structure to attenuate stray light, and the arrangement of the mating structure 682 is advantageous for the manufacturing method of injection molding.

The raised structures 672 and the spacer structures 682 of the second inner straight strip structures 625 and 626 are alternately arranged and linearly aligned, that is, the second inner straight strip structures 625 and 626 are alternately arranged by the raised structures 672 and the spacer structures 682. The second inner straight strip structures 625 and 626 are aligned in line. Thereby, the forming structure of the second inner straight strip structures 625 and 626 is matched with the design drawing, and the design of the machine tool is easy.

The number of the second inner straight strip structures 625 is 80 or more and 320 or less, and the number of the second inner straight strip structures 626 is 80 or more and 320 or less. Thereby, the balance between the two-color molded lens 690 in eliminating stray light and manufacturing feasibility can be maintained. In the sixth embodiment, the number of the second inner straight strip structures 625 is 90, and the number of the second inner straight strip structures 626 is 90.

In the sixth embodiment, as can be seen from FIGS. 6C and 6D, the two-color molded lens 690 is made by a secondary injection molding manufacturing method, and the entirety of the first inner straight strip structures 615 and 616 corresponds to the second inner straight strip structure. The whole of 625 and 626. The protruding structure 672 of the light absorbing portion 620 corresponds to the spacing structure 681 of the light transmitting portion 610, and the spacing structure 682 of the light absorbing portion 620 corresponds to the light transmitting portion. The convex structure 671 of the portion 610, and the convex structure 672 and the spacing structure 681 have a stepped surface in both the circumferential direction and the radial cross section of the central axis. The second inner straight strip structures 625 and 626 respectively correspond to the first inner straight strip structures 615 and 616, and the first inner straight strip structures 615 and 616 are arranged in a straight strip shape by the plurality of raised structures 671 and the plurality of spaced structures 681. . Each of the second inner straight strip structures 625 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 690. Each of the first inner straight strip structures 615 also has the same geometric structure and is molded along two colors. The circumferential direction of the central axis of the lens 690 is regularly arranged, wherein the first inner straight strip structure 615 is different from the second inner straight strip structure 625. Each of the second inner straight strip structures 626 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 690. Each of the first inner straight strip structures 616 also has the same geometry and is molded along two colors. The circumferential direction of the central axis of the lens 690 is regularly arranged, wherein the first inner straight strip structure 616 is different from the second inner straight strip structure 626. The center of the second inner straight strip structure 625 adjacent to each other in the circumferential direction of the central axis is θ2, and the center spacing angle of any two adjacent first inner straight strip structures 615 in the circumferential direction of the central axis corresponds to Θ1, any two adjacent second inner straight strip structures 626 are spaced apart from each other in the circumferential direction of the central axis by an angle θ2, and any two adjacent first inner straight strip structures 616 are at the center of the central axis in the circumferential direction. The interval angle corresponds to θ1, and θ1 = θ2.

As can be seen from FIG. 6A, the optical lens 600 sequentially includes lenses 601, 602, 603, a two-color molded lens 690, a lens 604, and an imaging surface 608 from the object side to the image side, wherein the lens of the optical lens 600 is five pieces (601, 602). , 603, 690, 604), and the lenses 601, 602, 603, the two-color molded lens 690, and the lens 604 are disposed in the plastic lens barrel 609 along the optical axis of the optical lens 600 (i.e., the central axis of the two-color molded lens 690).

As can be seen from FIGS. 6A and 6B, the flat surface 630 is located between the outer annular surface 619 of the peripheral region 614 and the outer annular surface 629 of the light absorbing portion 620. The flat surface 630 is surrounded and perpendicular to the central axis, and the flat surface 630 is located. Peripheral area 614. The optical effective area 613 includes two aspherical surfaces, which are the object side surface 670 and the image side surface 680 of the two-color molded lens 690 where the optical effective area 613 is located, respectively.

Viewed from another perspective, it can be seen from FIGS. 6B to 6D that the peripheral region 614 includes a plurality of first inner annular structures 617 and 618, and the first inner annular structures 617 and 618 are alternated with respect to the central axis of the two-color molded lens 690. Concentrically arranged. The light absorbing portion 620 includes a plurality of second inner annular structures 627 and 628 which are alternately concentrically arranged with respect to the central axis, and the second inner annular structures 627 and 628 correspond to and connect with the first inner ring. Structures 617 and 618.

In detail, each of the first inner annular structures 617 includes a plurality of convex structures 671 and a plurality of spaced structures 681. Each of the first inner annular structures 618 includes a plurality of raised structures 671 and a plurality of spaced structures 681, and each of the second inner rings The structure 627 includes a plurality of raised structures 672 and a plurality of spaced structures 682. Each of the second inner annular structures 628 includes a plurality of raised structures 672 and a plurality of spaced structures 682.

The diameter of each of the convex structures 671 of the first inner annular structures 617 and the spacing structure 681 of the adjacent first inner annular structures 618 along the central axis Toward alignment, each of the spacer structures 681 of each of the first inner annular structures 617 is aligned with the convex structures 671 of the adjacent first inner annular structures 618 in the radial direction of the central axis. Each of the raised structures 672 of each of the second inner annular structures 627 and the spaced apart structures 682 of the adjacent second inner annular structures 628 are aligned along a radial direction of the central axis, and each of the spaced apart structures 682 of the second inner annular structures 627 The raised structure 672 of the adjacent second inner annular structure 628 is aligned in the radial direction of the central axis.

The raised structure 671 and the spacer structure 681 are alternately arranged into a first inner annular structure 617 and 618, and the raised structure 672 and the spacer structure 682 are alternately arranged into a second inner annular structure 627 and 628.

In the sixth embodiment, as can be seen from FIGS. 6C and 6D, the two-color molded lens 690 is formed by a secondary injection molding manufacturing method, and the entirety of the first inner annular structures 617 and 618 corresponds to the second inner annular structure 627 and The whole of 628. The convex structure 672 of the light absorbing portion 620 corresponds to the spacing structure 681 of the light transmitting portion 610, the spacing structure 682 of the light absorbing portion 620 corresponds to the convex structure 671 of the light transmitting portion 610, and the convex structure 672 and the spacing structure 681 are at the central axis. Both the circumferential direction and the radial section are stepped surfaces. The second inner annular structures 627 and 628 correspond to the first inner annular structures 617 and 618, respectively.

Referring to Table 6 below, the data of the parameters θ1, θ2, w, φt, φab, and φt/φab in the optical lens 600 of the sixth embodiment of the present invention are listed, and the definitions of the parameters are the same as those of the first embodiment. The optical lens 100 is the same as the optical lens 400 of the fourth embodiment, and is illustrated in FIGS. 6B to 6D.

<Seventh embodiment>

Referring to FIG. 7A, FIG. 7A is a schematic diagram of an optical lens 700 according to a seventh embodiment of the present invention. As can be seen from FIG. 7A, the optical lens 700 includes a two-color molded lens 790, and the two-color molded lens 790 includes a light transmitting portion 710 and a light absorbing portion 720.

Referring to FIG. 7B, FIG. 7B is a schematic view showing the two-color molded lens 790 of the seventh embodiment. As shown in FIGS. 7A and 7B, the light transmitting portion 710 includes an optical effective area 713 and a peripheral area 714. The peripheral area 714 surrounds the optical effective area 713, wherein the imaging light passes through the optical effective area 713 and forms an image on the imaging surface 708. The active area 713 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 720 is located on the object side surface 770 of the two-color molded lens 790, wherein the object side surface 770 is a surface of the two-color molded lens 790 facing the object (not shown), and the image side surface 780 is a two-color molded lens 790 facing the image forming surface 708. s surface. The light absorbing portion 720 is annular and surrounds the central axis of the two-color molded lens 790. The plastic material of the light absorbing portion 720 has the property of absorbing visible light, the color of which is black, and the plastic material of the transparent portion 710 has visible light penetration property, and the color thereof The material and color of the light absorbing portion 720 are different from the plastic material and color of the light transmitting portion 710, and the two-color molding lens 790 is formed by injection molding and integrally formed.

Referring to FIGS. 7C and 7D, FIG. 7C is a plan view of the light absorbing portion 720 of the seventh embodiment, and FIG. 7D is a plan view showing the light transmitting portion 710 of the seventh embodiment. As can be seen from FIG. 7B to FIG. 7D, the peripheral region 714 includes a plurality of first inner annular structures 717 and 718, and the first inner annular shape The structures 717 and 718 are alternately concentrically arranged with respect to the central axis of the two-color molded lens 790. The light absorbing portion 720 includes a plurality of second inner annular structures 727 and 728, and the second inner annular structures 727 and 728 are alternately arranged concentrically with respect to the central axis, and the second inner annular structures 727 and 728 correspond to and connect with the first inner annular ring. Structures 717 and 718.

In detail, in the seventh embodiment, the two-color molding lens 790 is formed by secondary injection molding.

At least one of each of the first inner annular structures 717, 718 and each of the second inner annular structures 727, 728 may comprise a plurality of raised structures and a plurality of spaced structures. Thereby, the first inner annular structures 717, 718 and the second inner annular structures 727, 728 can further have two-dimensional structural features, which can improve the denseness of the structure to attenuate stray light, and the arrangement of the matching spacer structure is favorable. Injection molding manufacturing method. In the seventh embodiment, each of the first inner annular structures 717 includes a plurality of raised structures 771 and a plurality of spaced structures 781. Each of the first inner annular structures 718 includes a plurality of raised structures 771 and a plurality of spaced structures 781. The annular structure 727 includes a plurality of raised structures 772 and a plurality of spaced structures 782. Each of the second inner annular structures 728 includes a plurality of raised structures 772 and a plurality of spaced structures 782.

On the peripheral region 714, each raised structure 771 and the adjacent spacer structure 781 are aligned in the radial direction of the central axis. On the light absorbing portion 720, each of the convex structures 772 and the adjacent spacing structures 782 are aligned in the radial direction of the central axis. Thereby, the contact area of the light absorbing portion 720 with the peripheral region 714 of the light transmitting portion 710 can be increased. In the seventh embodiment, each of the raised structures 771 of the first inner annular structures 717 and the spaced apart structures 781 of the adjacent first inner annular structures 718 are along The radial alignment of the central axes, the spacing structures 781 of each of the first inner annular structures 717 and the raised structures 771 of the adjacent first inner annular structures 718 are radially aligned along the central axis. Each of the raised structures 772 of each of the second inner annular structures 727 is aligned with the spaced apart structures 782 of the adjacent second inner annular structures 728 along a radial direction of the central axis, and each of the spaced apart structures 782 of each of the second inner annular structures 727 The raised structure 772 of the adjacent second inner annular structure 728 is aligned in the radial direction of the central axis.

The raised structure 771 and the spacer structure 781 may be alternately arranged in a ring shape, and the raised structure 772 and the spacer structure 782 may be alternately arranged in a ring shape. Thereby, the contact area of the light absorbing portion 720 with the peripheral region 714 of the light transmitting portion 710 can be further increased. In the seventh embodiment, the convex structure 771 and the spacer structure 781 are alternately arranged into the first inner annular structures 717 and 718, and the convex structures 772 and the spacer structures 782 are alternately arranged into the second inner annular structures 727 and 728.

In the seventh embodiment, as can be seen from FIGS. 7C and 7D, the two-color molded lens 790 is manufactured by a secondary injection molding manufacturing method, and the entirety of the first inner annular structures 717 and 718 corresponds to the second inner annular structure 727 and The overall 728. The convex structure 772 of the light absorbing portion 720 corresponds to the spacing structure 781 of the light transmitting portion 710, the spacing structure 782 of the light absorbing portion 720 corresponds to the convex structure 771 of the light transmitting portion 710, and the convex structure 772 and the spacing structure 781 are at the central axis. Both the circumferential direction and the radial section are stepped surfaces. The second inner annular structures 727 and 728 correspond to the first inner annular structures 717 and 718, respectively.

As can be seen from FIG. 7A, the optical lens 700 sequentially includes lenses 701, 702, 703, a two-color molded lens 790, a lens 704, and an imaging surface 708 from the object side to the image side, wherein the lens of the optical lens 700 is five pieces (701, 702). , 703, 790, 704), and the lenses 701, 702, 703, the two-color molded lens 790, and the lens 704 are disposed in the plastic lens barrel 709 along the optical axis of the optical lens 700 (i.e., the central axis of the two-color molded lens 790).

As can be seen from FIGS. 7A and 7B, the flat surface 730 is located between the outer annular surface 719 of the peripheral region 714 and the outer annular surface 729 of the light absorbing portion 720. The flat surface 730 is surrounded and perpendicular to the central axis, and the flat surface 730 is located. Peripheral area 714. The optical effective area 713 includes two aspherical surfaces, which are the object side surface 770 and the image side surface 780 of the two-color molded lens 790 where the optical effective area 713 is located, respectively.

Viewed from another perspective, as seen in Figures 7B through 7D, the peripheral region 714 includes a plurality of first inner straight strip structures 715 and 716 that are along the center of the two-color molded lens 790 The circumferential direction of the shaft is alternately arranged regularly. The light absorbing portion 720 includes a plurality of second inner straight strip structures 725 and 726, and the second inner straight strip structures 725 and 726 are alternately arranged along the circumferential direction of the central axis, and the second inner straight strip structures 725 and 726 correspond to each other. The first inner straight strip structures 715 and 716 are connected.

In detail, each of the first inner straight strip structures 715 and 716 is disposed from the central axis toward the outer annular surface 719 of the peripheral region 714, and each of the second inner straight strip structures 725 and 726 passes from the central axis to the light absorbing portion 720. The outer ring surface 729 is set in the direction.

As can be seen from FIGS. 7B and 7C, each of the second inner straight strip structures 725 and 726 includes a plurality of raised structures 772 and a plurality of spaced structures 782, ie, the second inner straight strip structures 725 and 726 are formed by a plurality of raised structures. The 772 and the plurality of spacer structures 782 are arranged in a straight strip shape. Each of the second inner straight strip structures 725 The protrusion structure 772 and the spacer structure 782 of the 726 and the 726 are alternately arranged and linearly aligned, that is, the second inner straight strip structures 725 and 726 are alternately arranged by the protrusion structure 772 and the spacer structure 782 and linearly aligned to form the second inner portions. Strip structures 725 and 726. The number of second inner straight strip structures 725 is 45, and the number of second inner straight strip structures 726 is 45.

In the seventh embodiment, as can be seen from FIGS. 7C and 7D, the two-color molded lens 790 is formed by a secondary injection molding manufacturing method, and the entirety of the first inner straight strip structures 715 and 716 corresponds to the second inner straight strip structure. The whole of 725 and 726. Each of the first inner straight strip structures 715 and 716 is a continuous convex straight strip structure and is a straight stripe stripe, and each of the second inner straight strip structures 725 and 726 has a raised structure 772 and a spacer structure 782. Alternately arranged in a straight strip shape. The two sides of each of the second inner straight strip structures 725 respectively correspond to the first inner straight strip structures 715 and 716, and the two sides of the second inner straight strip structures 726 correspond to the first inner straight strip structures 716 and 715, respectively. Each of the second inner straight strip structures 725 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color molded lens 790, each second inner straight strip structure 726 having the same geometry and molding the lens 790 along the two-color The circumferential directions of the central axes are regularly arranged, and each of the first inner straight strip structures 715 has the same geometric structure and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 790, and each of the first inner straight strip structures 716 also corresponds to The ground has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color molded lens 790, wherein the first inner straight strip structures 715, 716 and the second inner straight strip structures 725, 726 have different geometries. Any two adjacent second inner straight strip structures 725 are spaced apart from each other in the circumferential direction of the central axis by an angle θ2, any two The center of the adjacent second inner straight strip structure 726 in the circumferential direction of the central axis is θ2, and the center spacing angle of any two adjacent first inner straight strip structures 715 in the circumferential direction of the central axis corresponds to θ1 The center-interval angle of any two adjacent first inner straight strip structures 716 in the circumferential direction of the central axis also corresponds to θ1, and θ1 = θ2.

Referring to Table 7 below, the data of the parameters θ1, θ2, w, φt, φab, and φt/φab in the optical lens 700 of the seventh embodiment of the present invention are listed, and the definitions of the parameters are the same as those of the first embodiment. The optical lens 100 is the same as the optical lens 400 of the fourth embodiment, and is illustrated in FIGS. 7B to 7D.

<Eighth Embodiment>

Referring to FIG. 8A, FIG. 8A is a schematic view of an optical lens 800 according to an eighth embodiment of the present invention. As can be seen from FIG. 8A, the optical lens 800 includes a two-color molded lens 890, and the two-color molded lens 890 includes a light transmitting portion 810 and a light absorbing portion 820.

Referring to FIG. 8B, FIG. 8B is a schematic view showing the two-color molded lens 890 of the eighth embodiment. As shown in FIG. 8A and FIG. 8B, the light transmitting portion 810 includes an optical effective area 813 and a peripheral area 814. The peripheral area 814 surrounds the optical effective area 813. The imaging light passes through the optical effective area 813 and forms an image on the imaging surface 808. The active area 813 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 820 is located on the object side surface 870 of the two-color molded lens 890, wherein the object side surface 870 is a surface of the two-color molded lens 890 facing the object (not shown), and the image side surface 880 is a two-color molded lens 890 facing the image forming surface 808. s surface. The light absorbing portion 820 is annular and surrounds the central axis of the two-color molded lens 890. The plastic material of the light absorbing portion 820 has the property of absorbing visible light, the color of which is black, and the plastic material of the transparent portion 810 has visible light transmission properties, and the color thereof The material and color of the light absorbing portion 820 are different from the plastic material and color of the light transmitting portion 810, and the two-color molded lens 890 is formed by injection molding and integrally formed.

Referring to FIGS. 8C and 8D, FIG. 8C is a plan view of the light absorbing portion 820 of the eighth embodiment, and FIG. 8D is a plan view showing the light transmitting portion 810 of the eighth embodiment. As can be seen from FIGS. 8B to 8D, the peripheral region 814 includes a plurality of first inner annular structures 817 that are concentrically aligned with respect to the central axis of the two-color molded lens 890. The light absorbing portion 820 includes a plurality of second inner annular structures 827 that are concentrically arranged with respect to the central axis, and the second inner annular structure 827 corresponds to and connects the first inner annular structures 817.

In detail, in the eighth embodiment, the two-color molded lens 890 is made by secondary injection molding. Each of the first inner annular structures 817 is a continuous convex annular structure, and each of the second inner annular structures 827 includes a plurality of raised structures 872 and a plurality of spaced structures 882, that is, each of the second inner annular structures 827 is a convex The structure 872 and the spacer structure 882 are alternately arranged in an annular structure, and the entirety of the first inner annular structure 817 corresponds to the entirety of the second inner annular structure 827. The convex structure 872 corresponds to an arc groove of the light transmitting portion 810 (not separately labeled), Each of the arc grooves is located between each of the two adjacent first inner annular structures 817, and a region between the two adjacent second inner annular structures 827 (not otherwise labeled) corresponds to each of the first inner annular structures 817. .

As can be seen from FIG. 8A, the optical lens 800 sequentially includes a lens 801, a two-color molded lens 890, lenses 802, 803, and 804 and an imaging surface 808 from the object side to the image side, wherein the lens of the optical lens 800 is five pieces (801, 890). 802, 803, 804), and the lens 801, the two-color molded lens 890, and the lenses 802, 803, and 804 are disposed in the plastic lens barrel 809 along the optical axis of the optical lens 800 (i.e., the central axis of the two-color molded lens 890).

As can be seen from FIGS. 8A and 8B, the flat surface 830 is located between the outer annular surface 819 of the peripheral region 814 and the outer annular surface 829 of the light absorbing portion 820. The flat surface 830 surrounds and is perpendicular to the central axis, and the flat surface 830 is located. Peripheral area 814. The optical effective area 813 includes two aspherical surfaces, which are the object side surface 870 and the image side surface 880 of the two-color molded lens 890 where the optical effective area 813 is located, respectively.

The connecting structure 831 is located in the peripheral region 814 of the two-color molded lens 890. The connecting structure 831 includes a connecting surface 841 and a bearing surface 851. The connecting surface 841 is an annular conical surface centered on the central axis, and the bearing surface 851 is perpendicular to the central axis. The connecting surface 841 is away from the central axis. The connection structure 831 is coupled to a lens 802 adjacent to the two-color molded lens 890, and the connection structure 831 aligns the two-color molded lens 890 with the adjacent lens 802. Thereby, the two-color molded lens 890 is facilitated to be assembled in the optical lens 800. In addition, the two-color molded lens 890 is not the lens closest to the subject in the optical lens 800, nor is it the most The lens near the imaging surface 808 can effectively attenuate the stray light of higher intensity within the viewing angle of the optical lens 800.

Furthermore, the connection structure 832 is located in the light absorbing portion 820 of the two-color molded lens 890. The connection structure 832 includes a connection surface 842 and a bearing surface 852. The connection surface 842 is an annular conical surface centered on the central axis, and the bearing surface 852 is The central axis is vertical and is closer to the central axis than the connecting surface 842. The connection structure 832 is coupled to a lens 801 adjacent to the two-color molded lens 890, and the connection structure 832 aligns the two-color molded lens 890 with the adjacent lens 801.

The angle between the connecting surface 841 of the peripheral region 814 and the bearing surface 851 is α1, and the angle between the connecting surface 842 of the light absorbing portion 820 and the bearing surface 852 is α2, wherein the parameters α1 and α2 satisfy the patent scope and the fourth aspect of the present invention. The definition of the parameter α in the embodiment.

Referring to Table 8 below, the data of the parameters w, α1, α2, φt, φab, and φt/φab in the optical lens 800 of the eighth embodiment of the present invention are listed, and the definitions of the parameters are the same as those of the fourth embodiment. The optical lens 400 is identical and is depicted in Figure 8B.

<Ninth embodiment>

Referring to FIG. 9A, FIG. 9A is a schematic view of an optical lens 900 according to a ninth embodiment of the present invention. As can be seen from FIG. 9A, the optical lens 900 includes a two-color molded lens 990, and the two-color molded lens 990 includes a light transmitting portion 910 and a light absorbing portion 920.

Referring to FIG. 9B, FIG. 9B is a schematic view showing the two-color molded lens 990 of the ninth embodiment. As shown in FIGS. 9A and 9B, the light transmitting portion 910 includes an optical effective area 913 and a peripheral area 914. The peripheral area 914 surrounds the optical effective area 913. The imaging light passes through the optical effective area 913 and forms an image on the imaging surface 908. The active area 913 can include a plane or a surface having a diopter aspheric surface that obscures imaging.

The light absorbing portion 920 is located on the object side surface 970 of the two-color molded lens 990, wherein the object side surface 970 is a surface of the two-color molded lens 990 facing the object (not shown), and the image side surface 980 is a two-color molded lens 990 facing the image forming surface 908. s surface. The light absorbing portion 920 is annular and surrounds the central axis of the two-color molding lens 990. The plastic material of the light absorbing portion 920 has the property of absorbing visible light, the color of which is black, and the plastic material of the transparent portion 910 has visible light transmission properties, and the color thereof The material and color of the light absorbing portion 920 are different from the plastic material and color of the light transmitting portion 910, and the two-color molding lens 990 is formed by injection molding and integrally formed.

Referring to FIGS. 9C and 9D, FIG. 9C is a plan view of the light absorbing portion 920 of the ninth embodiment, and FIG. 9D is a plan view showing the light transmitting portion 910 of the ninth embodiment. As is apparent from FIGS. 9B to 9D, the peripheral region 914 includes a plurality of first inner straight strip structures 915 which are regularly arranged in the circumferential direction of the central axis of the two-color mold lens 990. The light absorbing portion 920 includes a plurality of second inner straight strip structures 925, the second inner straight strip structures 925 are regularly arranged along the circumferential direction of the central axis, and the second inner straight strip structures 925 correspond to and connect the first inner straight strips. Structure 915.

In detail, the two-color molded lens 990 is made by secondary injection molding. The peripheral region 914 of the light transmitting portion 910 further includes an outer annular surface 919, and each of the first inner straight strip structures 915 is disposed from the central axis toward the outer annular surface 919 of the peripheral region 914. The light absorbing portion 920 further includes an outer ring surface 929, and each of the second inner straight strip structures 925 is disposed from the central axis toward the outer ring surface 929 of the light absorbing portion 920.

As can be seen from FIGS. 9B and 9C, each of the first inner straight strip structures 915 is a continuous convex straight strip structure and is a straight stripe stripe. Each of the second inner straight strip structures 925 includes a plurality of raised structures 972 and a plurality of spaced structures 982, that is, each of the second inner straight strip structures 925 is arranged in a straight strip shape by a plurality of raised structures 972 and a plurality of spaced structures 982. The raised structures 972 and the spacer structures 982 of the second inner straight strip structures 925 are alternately arranged and linearly aligned, that is, the second inner straight strip structures 925 are alternately arranged by the raised structures 972 and the spacer structures 982 and aligned in a straight line. Each of the second inner straight strip structures 925. Furthermore, the number of the second inner straight strip structures 925 is 24.

In the ninth embodiment, it can be seen from FIGS. 9C and 9D that the two-color molding lens 990 is made by a secondary injection molding manufacturing method, and the entirety of the first inner straight strip structure 915 corresponds to the second inner straight strip structure 925. overall. Each of the second inner straight strip structures 925 corresponds to a structure between the two adjacent first inner straight strip structures 915, and the structure between the two adjacent second inner straight strip structures 925 corresponds to the first inner portions. Straight strip structure 915. Each of the first inner straight strip structures 915 has the same geometry and is regularly arranged along the circumferential direction of the central axis of the two-color mold lens 990, and each of the second inner straight strip structures 925 has the same geometric structure and is molded along the two colors. Lens 990 The circumferential direction of the central axis is regularly arranged, wherein each of the first inner straight strip structures 915 is different from the geometry of each of the second inner straight strip structures 925. Any two adjacent second inner straight strip structures 925 are spaced apart from each other in the circumferential direction of the central axis by an angle θ2, and any two adjacent first inner straight strip structures 915 correspond to a central interval angle in the circumferential direction of the central axis. It is θ1, and θ1 = θ2.

As can be seen from FIG. 9A, the optical lens 900 sequentially includes a lens 901, a two-color molded lens 990, lenses 902, 903, and 904 and an imaging surface 908 from the object side to the image side, wherein the lens of the optical lens 900 is five pieces (901, 990). 902, 903, 904), and the lens 901, the two-color molded lens 990, the lenses 902, 903, and 904 are disposed in the plastic lens barrel 909 along the optical axis of the optical lens 900 (i.e., the central axis of the two-color molded lens 990).

As can be seen from FIGS. 9A and 9B, the flat surface 930 is located between the outer annular surface 919 of the peripheral region 914 and the outer annular surface 929 of the light absorbing portion 920. The flat surface 930 is surrounded and perpendicular to the central axis, and the flat surface 930 is located. Peripheral area 914. The optical effective area 913 includes two aspherical surfaces, respectively an object side surface 970 and an image side surface 980 of the two-color molded lens 990 in which the optical effective area 913 is located.

The connecting structure 931 is located in the peripheral region 914 of the two-color molded lens 990. The connecting structure 931 includes a connecting surface 941 and an abutting surface 951. The connecting surface 941 is an annular conical surface centered on the central axis, and the bearing surface 951 is perpendicular to the central axis. The connecting surface 941 is away from the central axis. The connection structure 931 is coupled to a lens 902 adjacent to the two-color molded lens 990, and the connection structure 931 aligns the two-color molded lens 990 with the adjacent lens 902. Thereby, the two-color molding lens 990 is facilitated to be assembled in the optical lens 900. In addition, the two-color mold is made through The mirror 990 is not the lens closest to the subject in the optical lens 900, nor is it the lens closest to the imaging surface 908, and can effectively attenuate the stray light of higher intensity in the angle of view of the optical lens 900.

Furthermore, the connecting structure 932 is located in the light absorbing portion 920 of the two-color molded lens 990. The connecting structure 932 includes a connecting surface 942 and a bearing surface 952. The connecting surface 942 is an annular conical surface centered on the central axis, and the bearing surface 952 is The central axis is perpendicular and is closer to the central axis than the connecting surface 942. The connection structure 932 is coupled to the lens 901 adjacent to the two-color molded lens 990, and the connection structure 932 aligns the two-color molded lens 990 with the adjacent lens 901.

The angle between the connecting surface 941 of the peripheral region 914 and the bearing surface 951 is α1, and the angle between the connecting surface 942 of the light absorbing portion 920 and the bearing surface 952 is α2, wherein the parameters α1 and α2 satisfy the patent application scope and the third aspect of the present invention. The definition of the parameter α in the embodiment.

Viewed from another perspective, it can be seen from FIGS. 9B to 9D that the peripheral region 914 includes a plurality of first inner annular structures 917 that are concentrically aligned with respect to a central axis of the two-color molded lens 990. The light absorbing portion 920 includes a plurality of second inner annular structures 927 that are concentrically arranged with respect to the central axis, and the second inner annular structure 927 corresponds to and connects the first inner annular structures 917.

In detail, in the ninth embodiment, the two-color molding lens 990 is formed by secondary injection molding. Each of the first inner annular structures 917 is a continuous convex annular structure, and each of the second inner annular structures 927 includes a plurality of raised structures 972 and a plurality of spaced structures 982, that is, each of the second inner annular structures 927 is a convex A ring structure in which the structure 972 and the spacer structure 982 are alternately arranged, first The entirety of the inner annular structure 917 corresponds to the entirety of the second inner annular structure 927. The convex structure 972 corresponds to an arc groove (not separately labeled) of the light transmitting portion 910, and each arc groove is located between each adjacent first inner annular structure 917, and two adjacent second inner annular structures The regions between 927 (not otherwise labeled) correspond to the respective first inner annular structures 917.

Referring to Table 9 below, the data of the parameters θ1, θ2, w, α1, α2, φt, φab, and φt/φab in the optical lens 900 of the ninth embodiment of the present invention are listed, and the definitions of the parameters are the same as The optical lens 100 of an embodiment is the same as the optical lens 400 of the fourth embodiment, and is illustrated as shown in FIGS. 9B to 9D.

<Tenth embodiment>

Referring to FIG. 10A and FIG. 10B , FIG. 10A is a schematic diagram of an electronic device 10 according to a tenth embodiment of the present invention, and FIG. 10B is another schematic diagram of the electronic device 10 of the tenth embodiment, and FIG. 10A The figure and FIG. 10B are, in particular, schematic views of the camera in the electronic device 10. 10 and 10B, the electronic device 10 of the tenth embodiment is a smart phone, the electronic device 10 includes a camera module 11, and the camera module 11 includes the optical lens 12 and the electronic photosensitive element 13 according to the present invention. The electronic photosensitive element 13 is disposed on the imaging surface of the optical lens 12. Thereby, with good imaging quality, it can meet the high-standard imaging requirements of electronic devices today.

Further, the user enters the shooting mode through the user interface (not otherwise labeled) of the electronic device 10. The user interface in the tenth embodiment may be the touch screen 19a, the button 19b, and the like. At this time, the optical lens 12 collects the imaging light on the electronic photosensitive element 13 and outputs an electronic signal about the image to the Image Signal Processor (ISP) 18.

Referring to FIG. 10C, FIG. 10C is a block diagram of the electronic device 10 in the tenth embodiment, particularly a camera block diagram in the electronic device 10. It can be seen from FIG. 10A to FIG. 10C that the camera module 11 can further include an auto-focus component 14 and an optical anti-shake component 15 according to the camera specifications of the electronic device 10. The electronic device 10 can further include at least one auxiliary optical component 17 and At least one sensing element 16. The auxiliary optical component 17 can be a flash module that compensates for color temperature, an infrared ranging component, a laser focusing module, etc., and the sensing component 16 can have functions of sensing physical momentum and operating energy, such as an accelerometer, a gyroscope, and a Hall. The Hall Effect Element senses the shaking and shaking applied by the user's hand or the external environment, and the AF module 14 and the optical anti-shake component 15 configured by the camera module 11 function to obtain a good function. The imaging quality helps the electronic device 10 according to the present invention to have various modes of shooting functions, such as optimized self-photographing, low light source HDR (High Dynamic Range imaging), high resolution 4K (4K Resolution) recording, and the like. In addition, the user can directly view the camera's shooting screen by the touch screen 19a, and manually operate the viewing range on the touch screen 19a to achieve the WYSIWYG autofocus function.

Furthermore, as can be seen from FIG. 10B, the camera module 11, the sensing component 16, and the auxiliary optical component 17 can be disposed on a flexible circuit board (Flexible The printed circuit board (FPC) 77 is electrically connected to the imaging signal processing component 18 and the like through the connector 78 to perform a photographing process. The current electronic devices, such as smart phones, have a thin trend. The camera modules and related components are arranged on a flexible circuit board, and then the connectors are used to integrate the circuits to the main board of the electronic device, thereby satisfying the mechanism design of the limited space inside the electronic device. And the circuit layout requirements and greater margins, the camera module's autofocus function allows for more flexible control through the touch screen of the electronic device. In the tenth embodiment, the electronic device 10 includes a plurality of sensing elements 16 and a plurality of auxiliary optical elements 17. The sensing elements 16 and the auxiliary optical elements 17 are disposed on the flexible circuit board 77 and at least one other flexible circuit board (not otherwise labeled). And the corresponding components such as the imaging signal processing component 18 are electrically connected through the corresponding connectors to perform the photographing process. In other embodiments (not shown), the sensing component and the auxiliary optical component may also be disposed on the main board of the electronic device or other forms of the carrier according to the mechanism design and circuit layout requirements.

In addition, the electronic device 10 may further include, but is not limited to, a Wireless Communication Unit, a Control Unit, a Storage Unit, a temporary storage unit (RAM), a read-only storage unit (ROM), or combination.

<Eleventh Embodiment>

Referring to FIG. 11, FIG. 11 is a schematic view showing an electronic device 20 according to an eleventh embodiment of the present invention. The electronic device 20 of the eleventh embodiment is a tablet computer, and the electronic device 20 includes a camera module 21 and a camera module 21 An optical lens (not shown) and an electronic photosensitive element (not shown) according to the present invention are included, wherein the electronic photosensitive element is disposed on an imaging surface of the optical lens.

<Twelfth Embodiment>

Referring to Fig. 12, Fig. 12 is a schematic view showing an electronic device 30 according to a twelfth embodiment of the present invention. The electronic device 30 of the twelfth embodiment is a wearable device, and the electronic device 30 includes a camera module 31. The camera module 31 includes an optical lens (not shown) and an electronic photosensitive element (not shown) according to the present invention. The electronic photosensitive element is disposed on the imaging surface of the optical lens.

While the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and the invention may be modified and modified in various ways without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application.

100‧‧‧ optical lens

109‧‧‧Mirror tube

108‧‧‧ imaging surface

106‧‧‧ spacer ring

170‧‧‧ object side surface

180‧‧‧ image side surface

110‧‧‧Transmission Department

120‧‧‧Light Absorption Department

101, 102, 103, 104‧ ‧ lenses

190‧‧‧Two-color molded lens

L‧‧‧Light

Claims (23)

An optical lens comprising at least one lens, the lens being a two-color molded lens, the two-color molded lens comprising: a light transmissive portion comprising: an optically active region; and a peripheral region surrounding the optically active region and including a plurality of An inner straight strip structure regularly arranged along a circumferential direction of a central axis of the two-color molded lens; and a light absorbing portion located on an object side surface of the two-color molded lens and The light absorbing portion is annular and surrounds the central axis, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the transparent portion. The two-color molded lens is formed by injection molding. Formed and integrally formed, the light absorbing portion includes a plurality of second inner straight strip structures, the second inner straight strip structures are regularly arranged along a circumferential direction of the central axis, and the second inner straight strip structures are Corresponding to and connecting the first inner straight strip structures, each of the second inner straight strip structures is a straight strip wedge structure. The optical lens of claim 1, wherein the two-color molded lens is formed by secondary injection molding. The optical lens of claim 2, wherein the peripheral region of the light transmitting portion and the light absorbing portion respectively comprise an outer annular surface, and each of the first inner straight strip structures is from the central axis to the periphery The outer annular surface of the region is disposed in a direction, and each of the second inner straight strip structures is disposed from the central axis toward the outer annular surface of the light absorbing portion. The optical lens of claim 3, wherein each of the first inner straight strip structures is a straight strip of strips. The optical lens of claim 3, wherein a flat surface is located between the outer annular surface of the peripheral region and the outer annular surface of the light absorbing portion, the flat surface surrounding and perpendicular to the central axis, and The flat surface is located in the peripheral region or the light absorbing portion. The optical lens according to claim 5, wherein the flat surface has a width w, which satisfies the following condition: 0.03 mm < w < 0.52 mm. The optical lens of claim 2, wherein the optically effective region comprises at least one aspherical surface. The optical lens of claim 2, wherein the number of the lenses of the optical lens is two or more, at least one of the lenses is the two-color molded lens, and a connecting structure is located in the two-color molded lens. At least one of the peripheral region and the light absorbing portion, the connecting structure includes a connecting surface and an bearing surface, the connecting surface is an annular conical surface, the bearing surface is perpendicular to the central axis and is farther away from the connecting surface The central axis is coupled to a lens adjacent to the two-color molded lens, and the connecting structure aligns the two-color molded lens with the adjacent lens. The optical lens of claim 8, wherein an angle between the connecting surface and the bearing surface is α, which satisfies the following condition: 95 degrees < α < 135 degrees. The optical lens of claim 8, wherein the connecting structure is located in the light absorbing portion. The optical lens of claim 8, wherein the connecting structure is located in the peripheral region. An electronic device comprising a camera module, comprising: the optical lens according to claim 1; and an electronic photosensitive element disposed on an imaging surface of the optical lens. An optical lens comprising at least one lens, the lens being a two-color molded lens, the two-color molded lens comprising: a light transmissive portion comprising: an optically active region; and a peripheral region surrounding the optically active region and including a plurality of An inner straight strip structure regularly arranged along a circumferential direction of a central axis of the two-color molded lens; and a light absorbing portion located on an object side surface of the two-color molded lens and The light absorbing portion is annular and surrounds the central axis, and the plastic material and color of the light absorbing portion are different from the plastic material and color of the transparent portion. The two-color molded lens is formed by injection molding. Formed and integrally formed, the light absorbing portion includes a plurality of second inner straight strip structures, the second inner straight strip structures are regularly arranged along a circumferential direction of the central axis, and the second inner straight strip structures are Corresponding to and connecting the first inner straight strip structures, the number of the second inner straight strip structures is 80 or more and 320 or less. The optical lens of claim 13, wherein the two-color molded lens is formed by secondary injection molding. The optical lens of claim 14, wherein the peripheral portion of the light transmitting portion and the light absorbing portion respectively comprise an outer annular surface, wherein each of the first inner straight strip structures passes from the central axis to the periphery The outer annular surface of the region is disposed in a direction, and each of the second inner straight strip structures is disposed from the central axis toward the outer annular surface of the light absorbing portion. The optical lens of claim 15, wherein each of the first inner straight strip structures is a straight strip of strips. The optical lens of claim 15, wherein a flat surface is located between the outer annular surface of the peripheral region and the outer annular surface of the light absorbing portion, the flat surface surrounding and perpendicular to the central axis, and The flat surface is located in the peripheral region or the light absorbing portion. The optical lens according to claim 17, wherein the flat surface has a width w which satisfies the following condition: 0.03 mm < w < 0.52 mm. The optical lens of claim 14, wherein the number of the lenses of the optical lens is two or more, at least one of the lenses is the two-color molded lens, and a connecting structure is located in the two-color molded lens. At least one of the peripheral region and the light absorbing portion, the connecting structure includes a connecting surface and an bearing surface, the connecting surface is an annular conical surface, the bearing surface is perpendicular to the central axis and is farther away from the connecting surface The central axis is coupled to a lens adjacent to the two-color molded lens, and the connecting structure aligns the two-color molded lens with the adjacent lens. The optical lens according to claim 19, wherein an angle between the connecting surface and the bearing surface is α, which satisfies the following condition: 95 degrees < α < 135 degrees. The optical lens of claim 19, wherein the connecting structure is located in the light absorbing portion. The optical lens of claim 19, wherein the connecting structure is located in the peripheral region. An electronic device comprising a camera module, comprising: the optical lens according to claim 13; and an electronic photosensitive element disposed on an imaging surface of the optical lens.