TW201229603A - Manufacturing method of imaging lens unit and imaging lens unit - Google Patents

Abstract

The objective of the present invention is to provide a method for producing an imaging lens unit (100), said method being able to: easily connect a holder body and a cover without increasing the number of parts; cause the imaging lens unit (100) to be more compact; and avoid degradation of dimensional precision, problems with specifications of outer appearance, the occurrence of flares and ghosting stemming from positioning shape, and the like. In a second molding step, by means of performing additional molding on a first holder member (20) in which the lens (10) has been inserted, the separation of the lens (10) is prevented and the lens (10) is fitted to the first holder member (20), and a welded second holder member (30) is molded. As a result, it is possible to reliably perform molding of the second holder member (30) and joining to the first holder member (20) at once, and thus situations such as an increase in the number of components for assembling the holder can be avoided.

Description

[Technical Field] The present invention relates to a method of manufacturing an image pickup lens unit in which a lens is incorporated in a holder, and an image pickup lens unit. [Prior Art] Image pickup in a mobile phone or the like The lens unit has a configuration in which the periphery of the optical lens is held by the holder. The assembly of the optical lens toward the holder is very strict with respect to the positioning accuracy, and is usually performed by an automatic assembly system having an image recognition technique. However, such a system is very expensive, and the insertion process for the lens toward the holder and the bonding process to the lens of the holder and the like require a very wide application of the ground because the process is required to separate the processes, whenever the lens is required. When the type of the product is changed, it is necessary to perform a very large-scale exchange of equipment. Therefore, it takes a lot of man-hours to be used as a manufacturing method for solving such a problem. It is known that 'individual molding of a plurality of optical fibers is formed in another part of the same mold. After the lens and the holder body and the cover for holding the holder, the holder body is directly placed in the mold, and the resin members are movably assembled, and the molded article is assembled by re-molding (refer to Patent Document 1). ). In other methods, it is also known that the optical lens and the aperture are pre-positioned in the mold, and the imaging lens unit is assembled by injection molding around the optical glass lens or the like (Patent Document 2 is referred to. However, in the manufacturing method of the above-mentioned Patent Document 1, there is a disadvantage that the molding member for joining the cover in the holder body is increased to complicate the molding process. In addition, it is necessary to provide a resin flow path of such a joint component, and it is very difficult to ensure the filling property and the joint strength in a thin-layer bracket used for an image pickup lens unit such as a cellular phone. It is difficult to achieve the desired miniaturization of the camera unit of the mobile phone. Further, in the manufacturing method of Patent Document 2, since it is necessary to directly insert the optical lens and the diaphragm by the mold, if the penetration strength is too weak, the resin flows out from the gap and adheres to the optical surface and the aperture of the optical lens, and On the one hand, if the penetration strength is too strong, the optical lens and the aperture are deformed or broken, and the condition range of the penetration strength is narrow, and the intrusion operation is extremely difficult. Further, since the lens is formed into a lens positioning shape, the positioning shape is a recess which becomes an appearance on the molded article, and does not require the light from entering there to cause an optical problem such as ghosts and spots, and When it is set to be installed in a product such as an imaging device, the required appearance specifications may not be satisfied. Further, because of such a positioning shape, deformation occurs during demolding, which causes deterioration in dimensional accuracy. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Laid-Open Patent Publication No. JP-A No. Hei. No. Hei. Method for manufacturing imaging lens unit

-6- S 201229603, the bracket body and the cover can be easily connected without adding parts, and the image pickup lens unit can be miniaturized, and can be avoided: problems caused by ghosting and spotting of the positioning shape, appearance specifications, Deterioration of dimensional accuracy, etc., and an object of the present invention is to provide an image pickup lens unit which can be composed of a small number of parts and which can be miniaturized, and can be easily avoided: occurrence of ghosts and spots as described above, problems in appearance specifications, and dimensions Deterioration of accuracy, etc. Further, another object of the present invention is to provide an image pickup lens unit which can be miniaturized and which can stably hold the lens. In order to solve the problem, the image pickup lens unit of the present invention includes a lens, a first holder member, and a second holder member that holds the lens in cooperation with the first holder member. The method of manufacturing the image pickup lens unit includes: a first molding process of molding a resin material into a mold, and molding a first holder member having a positioning portion of the lens; and inserting the lens into the first holder member located in the mold; The lens abuts on the positioning portion of the first holder member to position the positioning: and the resin material is poured into the mold, and is welded in the mold and fitted to the first holder member that positions the lens to prevent the lens from coming off. The second forming process of forming the second stent member. In the above, the second bracket member is fitted to the first bracket member. However, the fitting of the second bracket member is not limited to the case where the press-fit is engaged with the screwing, and the combination of the shapes complemented by the unevenness is included. The situation of being stuck to each other. For example, in the fitting of the first holder member and the second holder member, the two holder members are not permeable to the single-plane but are in contact with each other and are welded at the interface between the two holder members. 201229603 According to the above manufacturing method In the second molding process, the first holder member that positions the lens is molded, and the second holder member that prevents the lens from being detached is welded and fitted to the first holder member. Therefore, the formation of the second holder member can be achieved! The engagement of the bracket members is collectively and surely performed to avoid the increase in the number of parts for assembling the bracket and the shape of the parts in the joint. In particular, since the two bracket members are fitted after the joining, the area of the joint portion of the two bracket members is increased, and the meshing is also formed in the shape, so that the joint strength of the two bracket members can be improved. In this case, since the second holder member and the first holder member can be connected by the molding of the second holder member, it is not necessary to join the second holder member to the resin flow path for secondary molding for the first holder member. The first bracket member is provided to prevent an increase in size of the imaging unit. Further, since the second holder member is formed in a state in which the lens is positioned in the first holder member, it is different from the manufacturing method in which the positioning of the lens is performed only when the positioning member provided in the mold is used for molding, and can be avoided. The large positioning shape after the molding becomes a space remaining in the first holder member or the like, resulting in deterioration in dimensional accuracy. In a specific aspect of the present invention, in the inner peripheral portion of the first holder member, a flow path for forming a resin for molding the second branch member is provided in the second molding process. In this case, by fitting a part of the second holder member to the inner peripheral portion of the first holder member, the connection strength between the two holder members can be improved. In another aspect of the invention, in the outer peripheral portion of the first bracket member,

S -8 - 201229603 A flow path for forming a resin for forming a second holder member is provided by the second molding process. In this case, by fitting a part of the second holder member to the outer peripheral portion of the first holder member, the connection strength between the two holder members can be improved. In the other aspect of the present invention, the flow path for the resin for molding the second holder member is provided in the inner peripheral portion and the outer peripheral portion of the first holder member by the second molding process. In this case, by fitting a part of the second holder member to the outer peripheral portion and the inner peripheral portion of the first holder member, the connection strength between the two holder members can be further improved. In the other aspect of the present invention, at least one of the inner peripheral portion and the outer peripheral portion of the first holder member is provided with a flow path whose depth or thickness is changed stepwise, and the flow path is provided by the second molding process. 2 A flow path for a resin for molding a stent member. In this case, the first and second holder members are fitted with a stepped thickness, and the connection strength between the two holder members can be further improved. In another aspect of the present invention, a flow path is provided in the first holder member. This flow path is a flow path for a resin for molding the second holder member provided by the second molding process. In this case, since a part of the second holder member is buried inside the first holder member, the connection strength between the two members can be further improved. In the other aspect of the invention, in the first holder member, a flow path for forming a resin for the second holder member by the recessed shape is provided by the second forming process. In this case, the recessed shape of the second bracket member is engaged with the recessed shape of the second bracket member, and the joint strength of the two bracket members can be surely improved. -9 - 201229603 In another aspect of the invention, the mold for molding the second holder member is directly pressed toward the first holder member. In this case, the lens can be stably held in the first holder member when the second holder member is molded by the second molding process. Moreover, the manner in which the conventional molds are held by each other is different. Since the lens is supported by the resin-made first holder member from the back side, the lens is directly pressed by the mold for molding the second holder member. The first holder member made of resin is cushioned, and the occurrence of breakage of the lens can be suppressed. In another aspect of the invention, the mold for molding the second holder member is an abutting portion having a phase opposite to the periphery of the optical surface of the lens. In this case, the resin for forming the second holder member is prevented by the contact portion and can be prevented from leaking toward the optical surface side. In another aspect of the invention, the mold for molding the second holder member has an abutting surface that faces the optical surface of the lens and has a shape substantially the same as that of the optical surface. In this case, since the optical surface is formed in the same or substantially the same phase, the resin for forming the second holder member can be prevented from being leaked toward the optical surface side by the outer periphery of the contact surface. In another aspect of the invention, the first holder member is a diaphragm formed to surround the optical surface of the lens. In this case, when assembling the image pickup lens unit, it is not necessary to insert the separately formed aperture close to the first frame member, and the manufacturing process can be simplified. In another aspect of the invention, the lens is a single lens component or a group lens in which a plurality of lens elements are integrated. In this case, in the bracket member

-10- S 201229603 The process of inserting the lens into the positioning is simple. In another aspect of the invention, the lens includes a plurality of lens elements sequentially inserted into the first holder member in the other side of the invention, and the lens has four sides. In this case, each lens element can be easily cut and used from a crystal in which a plurality of lenses are collectively formed. In another aspect of the present invention, at least a part of the first molding space for forming the first stent member and the second molding space for forming the second stent member are formed in the same mold. . In this case, the first stent frame member can be formed by the same mold, and can be easily lifted, and at least a part of the space for molding the lens can be achieved in the other aspect of the present invention. The space saving of the manufacturing apparatus of the imaging lens unit is provided in the same mold together with at least a part of at least one molding space of the first molding space. In the other aspect of the present invention, the first and second brackets are It is formed by reflowing a heat resistant material. In this case, the heat resistant unit can be processed by the reflow process. In order to solve the above problems, the first lens member of the single lens of the imaging lens of the present invention and the first support member and the first holder member having the positioning portion of the lens are held together by the lens, and the first holder member is In the non-joining state, the second holder member is welded or adhered to the lens, and the first lens element has a columnar side-shaped base material. The first step is formed by the second member and the second member. The processing accuracy is spatialized. The third formed void portion and the second. In this case, the image pickup lens element of the 〇 member and the lens includes: a frame member, a resin-made first, a lower-to-lens-contacting bracket member -11 - 201229603, and a second holder member, which are formed by fitting surfaces that are fitted to each other. Spliced and connected. According to the image pickup lens unit described above, since the first holder member and the second frame member are strongly connected to each other by welding and fitting, it is possible to ensure stable holding of the lens and to avoid an increase in the number of parts for assembling the holder. Further, since the first holder member is formed before the lens is positioned, it is not necessary to position and support the lens during molding of the first holder member, and a space for positioning the lens is not formed around the first holder member. . Thus, dimensional accuracy can be prevented from deteriorating, and problems in appearance specifications can be avoided. Further, the molding flow path for molding the joining members of the first holder member and the second holder member can be omitted, and the size of the image pickup lens unit can be prevented from increasing. Further, the second holder member is welded or attached to the lens, and the image pickup lens unit can be miniaturized, and the lens can be surely stabilized. In a specific aspect of the invention, in the image pickup lens unit, a part ′ of the second holder member is fitted to at least one of an inner peripheral portion and an outer peripheral portion of the first holder member. In a further aspect of the present invention, at least one of the inner peripheral portion and the outer peripheral portion of the first bracket member is fitted to the first bracket in a state in which the depth or the thickness is changed stepwise. Member>> In another aspect of the present invention, a part of the second holder member enters the inside of the first holder member. In another aspect of the invention, the first holder member has a concave shape in which a part of the second holder member can be fitted.

[Embodiment] [First Embodiment] Hereinafter, a structure of a first embodiment mirror unit of the present invention and a method of manufacturing the same will be described with reference to the drawings. 'The mirror unit 100 of Fig. 1 and Fig. 2(A) and Fig. 2(B) has a laminated group lens; that is, a square frame or square member is the first structure. The shape of the lid-shaped member is also the second bracket member 30. Further, the member 20 and the second holder member 30 are fitted to each other and joined by welding, and the integral member is the holder 40. Here, the "lens 1" is, for example, a cut-out from a plurality of lenses (wafer-shaped base materials) which are cut by a square, and has a contoured shape and a square-shaped side surface. The lens 10 has a first lens element 1 1 and a second lens element on the image side held between the apertures 15 therebetween. The first lens element 11 and the lens body having a circular outline at the central portion around the optical axis OA. The frame body 11a having a square outline extending around the periphery of the lens body 11a is, for example, an aspherical lens portion having a lid and a lie. The first lens element 11 is formed of a curable resin, for example, but it is not necessary to have a structure in which the glass plate is held by the resin molded body as a whole. Further, the entirety of the first one may be formed of glass. Further, the curable tree thermosetting resin, the photocurable resin, and the imaging transparency of the radiation curable example, the lens crystal of the imaging lens 1 and the bovine 20, and the first first frame fitting surface are used. The circle has a flat view: the object side 12, and the bedding have: set at 1 la, and in lib. Lens A pair of optical surfaces are reflow-resistant heat resistance, and resin 1 lens element grease is exemplified by a resin. The lens element 12 has a lens body 12a having a circular outline provided at a central portion around the optical axis OA, and a frame portion 12b extending in a square shape extending around the lens body 12a. The lens body 1 2a' is, for example, an aspherical lens portion having a pair of optical surfaces 12d and 12e. The second lens element 1 2 may be formed of, for example, a curable resin, but may have a structure in which the glass plate is held by the resin molded body, and the whole may be formed of glass. The outer peripheral side of the frame portion lib of the first lens element 11 and the outer peripheral side of the frame portion 12b of the second lens element 12 are joined by being bonded and fixed by, for example, a bonding agent, and the two lens elements 11 are included. The lens of 12 can be used as a single lens. Further, the lens 10 may be joined between the first lens element 11 and the second lens element 12 via a spacer or the like. The lens 1A may be a lens having a structure in which a resin-made first lens element II is formed on one surface of a glass substrate, and a resin-made second lens element 12 is formed on the other surface of the glass substrate. The diaphragm 15 is a belt-shaped member having an opening OP3 at the center, and is held between the inner peripheral side of the frame portion lib of the first lens element 、 and the inner peripheral side of the frame portion 12b of the second lens element 12 The ground is fixed. The aperture 15 is, for example, a light-blocking metal plate and a resin film, and is formed of an opaque photosensitive resist material such as black. The aperture 15 is also preferably formed of a material having reflow heat resistance. The first holder member 20' is formed of a thermoplastic resin (for example, LCP' PPA or the like) having reflow heat resistance. The first holder member 2 includes a side wall portion 21 having a square tubular shape and a bottom portion 22' having a square plate-like contour as a whole to form a recess portion re for inserting and holding the lens 1''. The side wall portion 2 1 ' faces the four side faces 1 〇c of the lens 10 for limitation.

S 201229603 Regarding the lateral movement perpendicular to the optical axis OA of the lens 10, the bottom portion 22' faces the second frame surface 10b on the lower side of the lens 10 for restriction toward the optical axis OA along the lens 10. The movement of the lower direction. As shown in FIG. 2(A), when the lens 10 is inserted into the concave portion RE of the first holder member 20, the lower portion of the inner peripheral portion of the side wall portion 21 is formed to be in contact with the side surface 1 〇c of the lens 1A. The stepped convex portion 21d for guiding the lens 10 toward the inside. Further, an inner peripheral recess 21r for fitting the first bracket member 20 and the second bracket member 30 is formed in an upper portion of the inner peripheral portion of the side wall portion 21. A circular opening OP1 is formed in the center of the bottom portion 22. The edge portion 22e' surrounded by the opening OP1 functions as an aperture. Since a part of the first holder member 20 has a diaphragm, when the diaphragm is disposed on the surface of the lens 10, it is not necessary to separately form another aperture different from the holder 40, and the number of parts can be reduced. In the present embodiment, A slight gap is provided between the side surface 10c of the lens 10 and the stepped convex portion 21d of the first holder member 20. Further, as shown in a partially enlarged view, a slope 12f is provided between the optical surface 12e of the lens 10 and the frame portion 12b. The edge portion 22e of the first holder member 20 has a slope portion 22f formed to face the slope 12f of the lens 10, and an optical surface 12e facing the lens 10 spaced slightly apart from each other and having a shape along the optical surface 12e. The curved surface portion 22g and the wall surface portion 22h formed away from the optical surface 12e of the lens 10 are formed. The edge portion 22e is a positioning portion for precisely positioning the lens 10 that can be slightly moved in the lateral direction in a direction perpendicular to the optical axis OA. In other words, when the lens 10 is inserted into the first holder member 20, the edge portion 22e has a function of causing the first holder to be in contact with the outer peripheral slope of the lens body -15-201229603 12a of the second lens element 12. The optical axis OA of the member 20 and the optical axis OA of the lens 1 精密 are precisely matched. With this configuration, the lens 10 and the edge portion 2 2e as the aperture can be precisely aligned directly. Further, the positioning of the lens 10 of the first holder member 20 is performed in the plane of the optical surface 12e of the second lens element 12, that is, the lens body 12a, by making the phase surface more effective than the effective area of the optical surface. The abutting surface of the inclined portion of the field may be formed in the edge portion 2 2e of the first holder member 20, and the abutting surface may be abutted against the inclined portion of the lens 1 而. In this case, it is not necessary to separately provide a curved portion such as a slope for positioning on the surface of the optical surface 12e on which the second lens element 12 is formed. The above first stent member 20 is formed by injection molding of a resin as will be described later in detail. The second holder member 30 is formed of a thermoplastic resin (for example, LCP, PPA, or the like) having reflow heat resistance. The second holder member 30 includes a main body 31 having a square plate-like contour and a convex portion 32 having a square frame-like contour. The main body 31 faces the first frame surface 10a on the upper side of the lens 1A to restrict the movement in the upward direction along the optical axis OA of the lens 10. The convex portion 32' restricts the movement of the lens 1 横 in the lateral direction perpendicular to the optical axis 〇A of the lens 1〇. Thereby, the entire second holder member 30 can prevent the lens 1 脱离 from being detached from the inside of the first holder member 20 and can stably hold the lens 1 。. Here, the outer circumferential surface of the convex portion 32 provided in the second holder member 30 is fitted to the inner circumferential surface of the inner circumferential concave portion 21r provided in the side wall portion 21 of the first holder member 20. That is, the side wall portion 21 of the first holder member 20 and the convex portion 32 of the second holder member 30 are fitted with a set of complementary shapes -16-

S 201229603 The component, the interface of the two bracket members 20, 3〇, is composed of a plurality of planes. A circular opening 〇p2 is formed in the center of the second holder member 30, and the edge portion 3〇e surrounding the opening OP2 is disposed by shielding the periphery of the optical surface lid of the lens 1〇 as a kind The function of the light. The second holder member 30' described above is formed by injection molding of the resin after the formation of the first holder member 20, and is directly joined to the first holder member 2 by welding of the resin. In other words, the inner circumferential surface and the bottom surface of the inner circumferential concave portion 211_ of the first holder member 20 and the outer circumferential surface and the lower end surface of the convex portion 32 provided in the second holder member 30 are formed by the first holder member. The heat at the time of injection molding of 20 is strongly fused to each other', and is in a state of being directly joined without using a bonding agent. Further, the upper end surface 21a of the side wall portion 21 of the first holder member 20 and the outer lower end surface 3b of the main body 31 provided on the second holder member 3 are the first holder member 20 The heat at the time of injection molding is strongly welded to each other, and is directly joined without using a bonding agent. Further, in the case where the materials of the first holder member 20 and the second holder member 30 are all LCP, since the number of good bonding materials is small, the joining of the two holder members 20, 30 can be achieved by welding as in the present embodiment. Be sure. Further, the inner surface 20g of the bottom portion 22 of the first holder member 20 is in contact with the second frame surface 10b of the lens 1B. Since the lens 1 is accommodated in the first holder member 20 and is only slightly pushed downward, the inner surface 20g and the second frame surface 10b are only in contact with each other and are in a non-engaged state. On the other hand, the inner surface 3 Oh of the second holder member 30 is the first frame surface 10a attached or welded to the lens 1A. The first frame surface l〇a of the lens 1〇 and the upper side portion of the side surface -17-201229603 1 〇c, when the second holder member 30 is formed by injection, since the surface of the lens 1 is contacted with the flowing resin, the surface of the lens 1 is In the case of the resin, the surface of the first frame surface 10a of the lens 10 is softened by the heat during the injection molding, and is strongly welded to the inner surface 30h of the second holder member 30, and is directly used without using a bonding agent. The state of the joint. Further, when the surface of the lens 10 is made of glass, the lens 1 〇 and the resin are not welded during the injection molding of the resin, but the liquid resin is on the first frame 1 of the lens 1 〇 Since a is in a state of being in close contact with each other, the inner surface 3 Oh of the second holder member 30 is adhered to the lens 10, and the holder 40 can be adhered to the lens 10. With such a configuration, the positioning of the lens 1 可以 can be performed freely in the initial stage, and the inner surface 30h of the second holder member 30 is welded or attached to the first frame surface of the lens 10 after the assembly of the lens 10 Since 〇a or the like, all the members of the lens 10, the first holder member 20, and the second holder member 30 are connected to maintain stable positioning accuracy. In the imaging lens unit 100 having such a configuration, since the second holder member 30 is welded and fitted to the first holder member 20, the second holder member 30 can be formed and oriented toward the first holder. The joining of the members 20 is collectively and surely performed, and the increase in the number of parts for assembling the bracket 40 and the complexity of the shape of the parts in the connecting portion can be avoided. In particular, since the two bracket members 20, 30 are fitted after the connection, the area of the joint portion of the two frame members 20, 30 is increased and the shape is also engaged, and the joint strength of the two bracket members 20, 30 can be improved. Moreover, the first bracket member 20 and the second bracket member 30 are close to or close to the lens.

-18- S 201229603 is around, so it is possible to prevent the occurrence of ghosts and spots caused by the incidence of light from the side of the lens. Further, since there is almost no unnecessary gap on the side surface of the lens, it is not necessary to secure the resin flow path for joining the two bracket members 20 and 30, and the holder 40 can be thinned. Therefore, the image pickup lens unit 1 can be miniaturized. 'When it is set to be installed in the final product of an imaging device, etc., it becomes easy to satisfy the required appearance specification. Further, since there is no unnecessary gap on the side surface of the lens, deterioration in dimensional accuracy due to deformation at the time of demolding is also suppressed. Hereinafter, a method of manufacturing the image pickup lens unit 100 shown in Fig. 1 and the like will be described with reference to a manufacturing procedure shown in Fig. 3 and the like. First, as shown in FIG. 4(A), the first mold 51 having the fixed side and the mold unit 5 of the second mold 52 on the movable side are appropriately operated, and the second mold 52 is molded toward the first mold. When the position is moved to perform the mold clamping, the molding space for the second bracket member 20, that is, the first cavity CA1 is formed between the first die 51 and the second die 52 (step S11 in Fig. 3). At this time, in the first mold 51, the first molding portion 61 is provided so as to protrude from the division surface 51a, and the second molding portion 62 is provided in the second mold 52 so as to be recessed from the division surface 52a. The two forming portions 61, 62 can be fitted to each other. Here, in the first molding portion 61 on the first mold 51 side, the outer peripheral side surface 20i and the back surface 20j of the first holder member 20 shown in Fig. 1 are separately formed with the copying surfaces 61a and 61b for molding. . Further, in the second molding portion 62 on the second mold 52 side, the stepped convex portion 21d including the first holder member 20 and the inner surface 20c of the inner peripheral concave portion 21r and the inner surface 20g of the bottom side are formed separately. The replication surfaces 62a and 62b for molding. In addition, on the outer circumference of the first molding portion 61, a fitting member 61g in which a minute tapered surface is erected is provided, and an outer peripheral surface thereof is a fitting surface 61f. Further, the inner circumference of the second molded portion 62 is also a fitting surface 62f provided with a minute tapered surface. Therefore, as long as the second molding portion 62 and the first molding portion 61 are fitted to each other, the fitting surface 62 f of the second molding portion 62 abuts on the fitting surface 61f of the fitting member 61g of the first molding portion 61, The second molded portion 62 and the first molded portion 61 can be aligned in the lateral direction with high precision. When the two molded portions 61 and 62 are fitted, the upper surface (outer peripheral surface) 61p of the fitting member 61g of the first molded portion 61 and the outer peripheral bottom surface 62p of the second molded portion 62 are arranged close to or in close contact with each other. These surfaces 61p and 62p function as a dividing line when the first holder member 20 is molded. A resin injection port (not shown) is provided on at least one of the two forming portions 61 and 62. In addition, a heating mechanism for heating the molds 51 and 52 and a pressure cylinder for pressing the molds 5 1 and 52 from the back are provided, but the illustration is omitted for ease of understanding. Next, as shown in FIG. 4(B), the first holder member 20 is filled by the flow resin MP which is a material of the first holder member 20 to the first cavity CA1 and solidified by temperature adjustment. Forming (first forming process; step S 1 2 of FIG. 3). Next, as shown in Fig. 5, the second mold 52 is separated from the first mold 5 1 to cause the mold opening to be in a retracted state. At this time, the first holder member 20 is in a state of being directly held by the first molded portion 61 in the first mold 51. In this state, the insertion jig 70 holding the lens 10 is moved to the position above the first support member 20 held by the first molding portion 61 (step S1 3 in Fig. 3).

-20- S 201229603 The fitting jig 70 is an annular member, and temporarily holds the lens 10 in the center through hole 71. The insertion jig 70 is driven by a remote drive by a control drive device (not shown). Further, the insertion jig 70 is a built-in fluid-driven disk member 72 having a plurality of pressing members that advance and retreat toward the side surface l〇c of the lens 10. The insertion jig 70 is pressed by the side surface 10c of the lens 10 from the plural direction, and the lens 10 can be supported at the center of the through hole 7 1 in the illustrated assembled state, and the through hole can be made in a separated state to be described later. The lens 10 in 71 is in a state of being movable in the direction of the optical axis 〇A. Further, the fitting jig 70 may be a mechanism that is held such that the lens 10 does not fall by the flow of air. Further, in the lower portion of the fitting jig 70, an annular fitting surface 73a having a tapered surface for fitting with the first mold 51 is provided. Then, as shown in Fig. 6, the second mold 52 is held in the retracted state, and the fitting member 70 is lowered to directly engage the fitting surface 73a of the lower portion of the jig 70 and the fitting member of the first molded portion 61. 61 g of the fitting surface 61f was fitted. Thereby, the optical axis 0A of the lens 10 that is held in the jig 70 and the optical axis 0A of the first holder member 20 that is embedded in the first molded portion 61 of the first mold 51 can be substantially aligned, and the lens can be used. The first bracket member 20 is assembled with high precision. When the insertion jig 70 is switched to the separated state in this state, the lens 10 with the grip released by the disk member 72 is dropped and inserted into the concave portion RE of the first holder member 20 (insertion process; steps of FIG. 3) S14). At this time, the lens 10 is guided downward toward the stepped convex portion 21d (refer to the first drawing) provided in the side wall portion 21 of the first holder member 20, and is supported downward on the bottom portion 22, and - 21 - 201229603 is positioned in the lateral direction by the edge portion 22e (refer to FIG. 1) provided on the bottom portion 22. Thereafter, as shown in Fig. 7, the insertion jig 70 is removed from the second die 5 1 (step S15 of Fig. 3). Next, as shown in FIG. 8(A), by clamping the second mold 52 toward the second molding position, the second holder member 30 is formed between the first mold 51 and the second mold 52. The forming space is also the second cavity CA2 (step S16 of Fig. 3). In the second mold 52, the third molding portion 63 is provided so as to face the first molding portion 61 and is recessed from the division surface 52a, and the two molding portions 61 and 63 are fitted in a state of being aligned. . In the third molding portion 63 on the second mold 52 side, a copy surface 63a for forming the upper surface 30u (refer to Fig. 1) of the second holder member 30 shown in Fig. 1 is formed. At this time, between the upper copy surface 63a, the upper end surface 21a of the lower first holder member 20, and the step surface of the inner peripheral concave portion 21r, and the first frame surface 10a of the lens 10 are formed as The second cavity CA2 of the forming space. Further, the third molding portion 63 is provided with a fixing member 63c for fixing the lens 10 by abutting the lens 10 so as to surround the outer region of the optical surface lid of the lens 10. The fixing member 63c constitutes a part of the upper surface 63a on the inner side, and also has a function of preventing the flow resin MP from flowing into the space SP adjacent to the optical surface lid of the lens 10. In the fixing member 63c, when the second cavity CA2 is formed by the mold clamping, the lens 1 is gently pressed downward by the contact with the innermost peripheral portion of the frame portion lib, and the first holder is pressed in the first holder. The lens 10 is stabilized within the member 20 to prevent swimming. Also, the lens 10 is a resin

Since the S--22-201229603 is manufactured and supported by the first bracket member 20 having some elasticity, it is possible to reliably prevent the lens 10 from being damaged due to direct pressing by the fixing member 63c. Further, the position at which the fixing member 63c is pressed against the lens 10 is brought close to the optical surface 11d, that is, since the thickness of the fixing member 63c is smaller, the opening of the second holder member 30 obtained by the forming is closer to the optical surface. Therefore, it is possible to improve the shading function as an aperture. In the optical surface lid of the lens body 11a of the first lens element 11, the abutting surface of the inclined surface of the outer region of the outer region of the effective region is formed in the fixing member 63c. It is also possible to fix the lens 1 in such a manner that the junction abuts against the inclined portion. In the inner circumference of the third molding portion 63, the fitting surface 63f having the minute tapered surface of the fitting surface 61f of the fitting member 61g corresponding to the first molding portion 61 is formed, so that the third molding portion is provided. When the fitting portion 63 of the third molding portion 63 is brought into contact with the fitting surface 61f of the fitting member 61g of the first molding portion 61, the fitting surface 63 f of the third molding portion 63 can be brought into contact with each other. The forming portion 63 and the first forming portion 61 are aligned. Thereby, when the final image pickup lens unit 100 is completed, the optical axis OA of the second holder member 30, the optical axis OA of the first holder member 20, and the optical axis OA of the lens 10 can be aligned. When the two molded portions 62 and 63 are fitted, the outer peripheral surface 61p of the first molded portion 61 and the outer peripheral bottom surface 63p of the third molded portion 63 are disposed in close proximity or in close contact with each other. These faces 61p and 63p function as a dividing line at the time of forming the second frame member 3''. Thereby, the third molding portion 63 can be precisely aligned with the first holder member 20. Next, as shown in FIG. 8(B), the flow resin MP which is a material of the second holder -23-201229603 member 30 is charged to the second cavity CA2 and cured by temperature adjustment. 2 bracket member 30 forming (second forming process; step S17 of FIG. 3) ° thereby completing the image pickup lens unit 1 that holds the lens 1 between the first holder member 20 and the second holder member 30. Hey. At this time, the fixing member 6 3 c provided in the third molding portion 63 has a function of forming the opening Ο P 2 in the second holder member 30 by preventing the flow resin MP from flowing into the space SP. In addition, the flow resin Μ P flows into the concave portion of the inner circumferential concave portion 21r of the first stent member 20 to form the convex portion 32 of the second stent member 30, and the first stent member 20 and the second stent member 30 are strong. The fitting is achieved. Then, as shown in FIG. 9(A), the second mold 52 is brought into a retracted state by the mold opening that separates the second mold 52 from the first mold 51 (step S18 of FIG. 3), as shown in FIG. (B), the image pickup lens unit 100 can be released from the first mold 51 by using the injection pin (not shown) provided in the first mold 51, and the image pickup lens unit 100 can be finished from the first mold 51. Take out (step S19 of Fig. 3). According to the imaging lens unit 100 of the first embodiment described above, by the additional molding of the first holder member 20 into which the lens 10 has been inserted in the second molding process, the detachment of the lens 10 can be prevented and the first holder member can be prevented. .20 The second bracket member 30 that is connected by the fitting by welding is formed. Therefore, the molding of the second holder member 30 and the joining of the first holder member 20 can be collectively and surely performed, and the increase in the number of parts for assembling the holder can be avoided. Thereby, the assembly system of the imaging lens unit 100 can be avoided to be large-scale. And because the lens 10 is

In the state in which the second holder member 30 is fitted in the state in which the first holder member 20 is fitted, it is possible to avoid deterioration of dimensional accuracy due to the large positioning shape remaining in the first holder member 20 or the like. Further, since the lens 10 is positioned by the first holder member 20 when the lens 10 is inserted into the first holder member 20, it is not necessary to provide an image recognition device and a positioning mechanism is provided in the mold device 50, and the image pickup lens unit 100 can be easily provided. The manufacturing equipment is highly accurate. Further, since the pre-arc (edge portion 22e) is formed on the bottom portion 22 of the first holder member 20, it is not necessary to insert the separately formed aperture close to the first holder member 20 at the time of assembly of the imaging lens unit 100, and it is possible to insert The manufacturing process is simple. Moreover, in the above description, in order to align the first molding portion 61 and the second and third molding portions 62 and 63, the fitting surfaces 6 1 f, 62f, and 63f provided on the first molding portion 61 are formed by these. In addition to the portions 61, 62, and 63, the same alignment may be performed by a tapered locking pin provided on the molds 51, 52, and the like. Further, in the above description, it is an integral group lens in which the lens 10 is joined. In this case, the process of inserting and positioning the mold toward the lens 1 may be simplified, but the first lens element 11, the second lens element 12, and the diaphragm 15 may be formed separately. According to the present embodiment, it is desirable to provide a slight gap between the side surface 10c of the lens 10 and the stepped convex portion 21d of the first holder member 20, and the optical axis OA of the first holder member 20 is formed at the edge portion 2 2 e. In the case where the optical axis 〇A of the lens 10 has a function of precisely matching, the first lens element 11, the second lens element 12, and the diaphragm 15 may be provided with irregularities for positioning each other. In step S13 to S15 of FIG. 3, after the second lens element 12 is disposed and -25-201229603 is positioned on the first holder member 20, the diaphragm 15 and the first lens element 11 are laminated, and the unevenness or the like is formed. Positioning. Thereafter, the process after step S16 of FIG. 3 may be performed. In the above description, the first holder member 20 and the second holder member 30 are reflowed heat-resistant materials, but it is not necessary to form the holder members 20 and 30 from the same material, and the two holder members 20 and 30 are used. The curing temperature and the like of the flowable resin MP for molding may be different from each other, and the welding state of the two holder members 20 and 30 may be adjusted. [Second embodiment] Hereinafter, a method of manufacturing the image pickup lens unit of the second embodiment will be described. In the method of manufacturing the image pickup lens unit of the second embodiment, the manufacturing method of the image pickup lens unit 1 of the first embodiment is partially changed, and the portion which is not particularly described is the same as that of the first embodiment. In the present embodiment, a slight gap is not formed between the side surface 10c of the lens 10 and the stepped convex portion 2 1 d of the first holder member 20, and the outer circumference of the lens 10 and the first holder member 20 are inferior. The convex portion 21d abuts to position the lens 1 and the first holder member 20. In this case, the stepped convex portion 21d constituting the inner wall surface of the first holder member 20 has a function of precisely matching the optical axis 〇A of the first holder member 20 and the optical axis OA of the lens 10. In the case where the lens is positioned by the stepped convex portion 21 d of the first holder member 20, it is important to accurately process the copy surface 62a of the second molding portion 62 of the second mold 51 in advance.

-26- S 201229603 It is not necessary to form the integral group lens in which the lens 10 of the first holder member 20 is joined, and the second lens element n and the second lens element 1 2 and the aperture 15 are formed separately. can. In this case, by changing the shape of the inner surface 20c of the first holder member 20, the respective side faces of the first lens element 11, the second lens element 12, and the diaphragm 15 constituting the lens 1 are first and the first side. When the stepped convex portion 21d of the holder member 20 abuts, precise positioning of the lens 10 and the first holder member 20 can be easily performed. [Third embodiment] Hereinafter, a method of manufacturing the image pickup lens unit of the third embodiment will be described. In the method of manufacturing the image pickup lens unit of the third embodiment, the method of manufacturing the image pickup lens unit 1 of the first embodiment is changed, and the portion which is not particularly described is the same as that of the first embodiment. As shown in Fig. 10, the outer peripheral recess 121r for fitting the first bracket member 2 to the second bracket member 30 is formed in the upper portion of the outer peripheral portion of the side wall portion 121 constituting the first bracket member 20. On the other hand, in the lower portion ' of the second holder member 30, a convex portion 132 for fitting the second holder member 3 to the first holder member 20 is formed. The inner peripheral surface ' of the convex portion 132 provided in the second holder member 3''' is fitted to the outer peripheral surface of the outer peripheral recessed portion 111r provided in the side wall portion 21 of the first holder member. In other words, the side wall portion 1 2 1 of the first holder member 2〇 and the convex portion i 32 of the second holder member 30 are a pair of fitting members. Further, 'the second molded portion 62 of the second mold 52 shown in Fig. 4' is formed with an inner surface 20c that includes the stepped convex portion 21d including the first holder member 20 and the outer peripheral portion -27-201229603 recessed portion 121r. The upper surface 62a, 62b is used. In the formation of the second mold groove CA2 (refer to FIG. 8), the outer peripheral concave portion 121r of the first holder member 20 is a flow resin MP for molding the convex portion 1 3 2 of the second holder member 30. Indentation for inflow. Thereby, the second holder member 30 which is connected by the fitting by the welding of the first holder member 20 can be formed. [Fourth embodiment] Hereinafter, a method of manufacturing the image pickup lens unit of the fourth embodiment will be described. In the method of manufacturing the image pickup lens unit of the fourth embodiment, the method of manufacturing the image pickup lens unit 1 of the first embodiment is partially changed, and the portion which is not particularly described is the same as that of the first embodiment. As shown in FIG. 1 , an inner peripheral recess for fitting the first bracket member 20 to the second bracket member 30 is formed in an upper portion of the inner peripheral portion of the side wall portion 221 constituting the first bracket member 20 . 2 11•. An outer peripheral recess 121r for fitting the first bracket member 20 to the second bracket member 30 is formed in an upper portion of the outer peripheral portion of the side wall portion 22 1 . On the other hand, in the lower portion of the second frame member 30, a pair of convex portions 32 and 132 for fitting the second holder member 30 to the first holder member 20 are formed. The outer circumferential surface of the convex portion 32 of the second stent member 30 is fitted to the inner circumferential surface of the inner circumferential concave portion 21r provided in the side wall portion 21 of the first stent member 20. The inner circumferential surface ' of the convex portion 132 of the second stent member 30 is fitted to the outer circumferential surface of the outer circumferential concave portion 121r provided in the side wall portion 21 of the first stent member 2''. When the angle of view is changed, the convex portion 21p provided on the upper portion of the first holder member 20 is fitted to the second branch.

S -28- 201229603 A recess between a pair of 32, 132 in the frame member 30. In other words, the side wall portion 22 1 of the first holder member 20 and the convex portions 32 and in of the second holder member 30 are a pair of fitting members. In addition, the second molding portion 62 of the second mold 52 shown in FIG. 4 is provided with a copy surface 62a for the inner surface 20c including the inner circumferential concave portion 21r and the outer circumferential concave portion 121r of the first holder member 20. 62b. In the formation of the second cavity CA2 (refer to FIG. 8), the two recessed portions 21r and 121r provided in the second bracket member 2 are formed for molding the convex portions 32 and 132 of the second holder member 30. The recess in which the flowing resin MP flows. Thereby, the second holder member 30 to which the first holder member 20 is joined by welding can be formed. [Fifth Embodiment] Hereinafter, a method of manufacturing an image pickup lens unit according to a fifth embodiment will be described. In the method of manufacturing the image pickup lens unit of the fifth embodiment, the method of manufacturing the image pickup lens unit 100 of the first embodiment is partially changed, and the portion which is not particularly described is the same as that of the first embodiment. As shown in Fig. 12, in the upper portion of the inner peripheral portion of the side wall portion 321 constituting the first bracket member 20, the two structural members for fitting the first bracket member 2 to the second bracket member 30 are formed. Inner peripheral recess 321r. On the other hand, in the lower portion ' of the second holder member 30, a convex portion 332 having a two-stage structure for fitting the second holder member 3 to the first holder member 20 is formed. The outer circumferential surface of the two-stage structure of the convex portion 332 of the second stent member 30 is the same as the inner circumferential concave portion 321r of the side wall portion 321 of the first stent member 20.

-29- 201229603 The inner peripheral surface of the segment structure is fitted. In other words, the side wall portion 321 of the first holder member 20 and the convex portion 332 of the second holder member 30 are a pair of fitting members. Further, the second molding portion 62 of the second mold 52 shown in Fig. 4 is provided with copying surfaces 62a and 62b for forming the inner surface 20c including the inner circumferential concave portion 321r of the first holder member 20. In the formation of the second cavity CA2 (refer to FIG. 8), the inner circumferential concave portion 321r of the first holder member 20 is a flow resin MP for molding the convex portion 332 of the second holder member 30. Indentation for inflow. Thereby, the second bracket member 30 that is connected by the fitting by welding can be formed for the second armature frame member 20. The above-mentioned "side wall portion 321 and convex portion 332 are fitted in two stages, but the side wall portion 321 and the convex portion 332 may be fitted in three or more stages. Further, the side wall portion 3 2 1 may be referred to as the inner side, and the convex portion 3 3 2 may be the outer side. [Sixth embodiment] Hereinafter, a method of manufacturing the image pickup lens unit of the sixth embodiment will be described. In the method of manufacturing the image pickup lens unit of the sixth embodiment, the method of manufacturing the image pickup lens unit 100 of the first embodiment is changed, and the portion which is not particularly described is the same as that of the first embodiment. The concave portion 421r for fitting the second bracket member 2 to the second bracket member 3 in the upper portion of the side wall portion 421 constituting the first bracket member 2 is shown in Fig. 1 is a recess in which the upper end surface 21a is cut. The way is formed. On the other hand, a convex portion 432 for fitting the second holder member 3'' to the first holder member 20 is formed in the lower portion of the second holder member 3''. Set in the second bracket member

The inner circumferential surface and the outer circumferential surface of the convex portion 43 2 of S -30-201229603 30 are fitted to the inner surface of the concave portion 421r provided in the side wall portion 421 of the first holder member 20. In other words, the side wall portion 421 of the first holder member 20 and the convex portion 43 2 of the second holder member 30 are a pair of fitting members. Further, in the second molding portion 62 of the second metal mold 52 shown in Fig. 4, the upper surface 62a and 62b for the inner surface 20c including the concave portion 42lr of the first holder member 20 are provided. In the formation of the second cavity CA2 (refer to FIG. 8), the recessed portion 42 lr of the first holder member 20 is used to flow the flow resin MP for molding the convex portion 432 of the second holder member 30. The depression. Thereby, the second holder member 30 to be joined by the fitting by welding can be formed in the first holder member 20. [Seventh embodiment] Hereinafter, a method of manufacturing the image pickup lens unit of the seventh embodiment will be described. In the method of manufacturing the image pickup lens unit of the seventh embodiment, the method of manufacturing the image pickup lens unit 1 of the first embodiment is partially changed, and the portion which is not particularly described is the same as that of the first embodiment. As shown in Fig. 14, an inner peripheral concave portion 521r for fitting the first holder member 20 to the second branch member 30 is formed on the upper portion of the side wall portion 521 constituting the first holder member 20. On the other hand, in the lower portion of the second holder member 30, a convex portion 532 for fitting the second holder member 30 to the first holder member 20 is formed. The outer circumferential surface of the convex portion 532 of the second stent member 30 is fitted to the inner surface of the inner circumferential concave portion 521r of the side wall portion 521 of the first stent member 20. At this time, in order to be surely fitted, the inner circumferential concave portion 521γ is a hook-shaped concave portion 21x of -31 - 201229603, and the convex portion 532 also has a hook-shaped convex portion 3 2x. In this manner, the side wall portion 521 of the first holder member 20 and the convex portion 532 of the second holder member 30 are a pair of fitting members. Further, in the second molding portion 62 of the second metal mold 52 shown in Fig. 4, the upper surface 62c for forming the inner surface 20c including the inner circumferential concave portion 52 lr of the first holder member 20 is provided. At this time, in the second molded portion 62, the concave portion 21x for forming the inner circumferential concave portion 521r is not shown, but a mechanism for performing the concave processing is incorporated. In the formation of the second cavity CA2 (refer to FIG. 8), the inner circumferential concave portion 521r' of the first holder member 20 is a flow resin for molding the convex portion 532 of the second holder member 30. Inflow of depression. Thereby, the second holder member 30 to which the second bracket member 20 is joined by welding can be formed. The above-mentioned side wall portion 5 2 1 is the outer side of the convex portion 536, but the side wall portion 521 is the inner side, and the convex portion 523 is the outer side. [Eighth embodiment] Hereinafter, an image pickup lens unit and a method of manufacturing the same according to an eighth embodiment will be described. In the imaging lens unit of the eighth embodiment and the method of manufacturing the same, the imaging lens unit 100 of the first embodiment and the manufacturing method thereof are partially changed, and the portions which are not particularly described are the same as in the first embodiment. As shown in Fig. 15, the lens 610 is a single lens part formed of a resin, glass, or a composite of these. In this case, the manufacture of the lens 6 itself is relatively simple. The shape of the bracket 40 shown in Fig. 15

S-32-201229603 is just an example, and the shapes illustrated in the first to the right are also possible. If the lens 610 is made of a resin, the lens 610 may be formed by the mold device 50. Fig. 16 is a view for explaining an example of a method of manufacturing the lens 610. This mold device 50 is provided with a first mold 65 1 on the fixed side and a second mold 652 on the movable side. In the first mold 651, a first molding portion 61 for molding the first holder member and a fourth molding portion 664 for lens molding are provided. In the second mold 65 2, a second molding portion 62 for molding the first holder member, and a third molding portion 63 for fixing the second holder member and the lens 6 1 0 at the time are provided, and The fifth molding portion 665 for lens molding. At least one of the first molded portion 61 and the second molded portion 62, at least one of the fourth molded portion 664, and the fifth molded portion 665, and the third molded portion 63 are provided with a resin injection port (not shown). Since the configurations of the first molded portion 61 to the third molded portion 63 are the same as those of the first embodiment, detailed description thereof will be omitted. The second mold 652 is subjected to mold clamping by moving the molding position where the fourth molding portion 664 and the fifth molding portion 665 face each other, and the fourth molding is performed between the first mold 651 and the second mold 65 2 . The portion 664 and the fifth molding portion 665 form a molding space for the lens 610, that is, the third molding cavity CA3. The molding position is also a position (first molding position) at which the first holder member 20 is molded, and the first molding groove CA1 for forming the first holder member is formed at the same time as the formation of the third molding groove CA3 for lens molding. Further, the lens 610 is formed by charging the resin to the third cavity CA3 for lens molding and curing. Then, the resin is solidified in the first cavity CA1 to form the 201229603 first holder member 20. Then, the second mold 652 is directly retracted while the lens 610 is held in the second mold 652, and the first holder member 20 in the first mold 651 is removed from the second mold 6 5 2 by a discharge mechanism (not shown). The mold inserts the lens 610 toward the concave portion RE of the first holder member 20. Then, the third molding portion 63 of the second die 652 moves toward the position facing the first molding portion 61 of the first die 651, and the two are fitted and fitted (that is, assembled at the second molding position), and then re-closed. The mold clamping is performed by charging the resin to the second cavity CA2 and solidifying the second holder member 30. As a result, the first holder member 20 and the second holder member 30 are welded to each other, and the lens unit 610 that houses and fixes the lens 610 in the holder 40 is completed. Further, by filling the third cavity CA3 with the molding of the first holder member 20, the new lens 610 can be formed in parallel with the molding of the first holder member 20. Therefore, by repeating the above process, a large number of image pickup lens units 100 can be produced in a short time. Further, since the molding space for molding the lens 610 is provided at a portion different from the molding space for molding the holder 40 of the molds 651 and 652, it is possible to achieve space saving of the manufacturing apparatus of the image pickup lens unit 100. The present invention has been described above by way of examples, but the invention is not limited to the embodiments described above. For example, in each of the above embodiments, the lens portion is positioned using the edge portion 22e of the second bracket member 20 and the stepped convex portion 2 1 d of the inner wall surface of the first bracket member 20, but these may be substituted. These may be used as the positioning member of the fixing members 6 3 c of the second molds 5 2, 6 5 2 .

In the above-described embodiment, the resin material constituting the holder 40 is a thermoplastic resin. However, the curable resin such as a thermosetting resin or a photocurable resin may be used without being limited thereto. Further, it is also possible to form a plurality of simultaneous lens forming of the plurality of lenses in the mold-providing plural forming portion. In this case, it is not necessary to arrange the members for alignment in the respective shaped portions, and it is only necessary to use a common alignment member for the plurality of formed portions. [Brief Description of the Drawings] [Fig. 1] is a side cross-sectional view showing the structure of an imaging lens unit of the first embodiment. [Fig. 2] (A) is an exploded perspective view of the imaging lens unit, and (B) is an external perspective view of the imaging lens unit. [Fig. 3] A flowchart showing a manufacturing procedure of the image pickup lens unit shown in Fig. 1. [Fig. 4] Fig. 4(A) is a cross-sectional view showing the formation of a first cavity in the manufacturing apparatus, and Fig. 4(B) is a cross-sectional view showing the molding of the first holder member. [Fig. 5] A cross-sectional view showing the insertion jig holding the lens. Fig. 6 is a cross-sectional view showing the assembly of the lens to the first holder member by the insertion jig. [Fig. 7] A cross-sectional view showing the removal of the jig. [Fig. 8] (A) is a cross-sectional view showing the formation of a second cavity in the manufacturing apparatus, and (B) is a cross-sectional view showing the molding of the second holder member. [Fig. 9] (A) is a cross-sectional view illustrating the final mold opening in the manufacturing apparatus, and (B) is a cross-sectional view illustrating the take-out of the image pickup lens unit. [35] Fig. 10 is a cross-sectional view showing the manufacturing apparatus of the image pickup lens unit of the third embodiment. [Fig. 11] A cross-sectional view showing a manufacturing apparatus of an image pickup lens unit of a fourth embodiment. [Fig. 12] Fig. 12 is a cross-sectional view showing the manufacturing apparatus of the image pickup lens unit of the fifth embodiment. [Fig. 13] Fig. 13 is a cross-sectional view showing the manufacturing apparatus of the image pickup lens unit of the sixth embodiment. [Fig. 14] Fig. 14 is a cross-sectional view showing the manufacturing apparatus of the image pickup lens unit of the seventh embodiment. Fig. 15 is a cross-sectional view showing the image pickup lens unit of the eighth embodiment. [Fig. 16] Fig. 16 is a cross-sectional view showing the manufacturing apparatus of the image pickup lens unit of the eighth embodiment. [Description of main component symbols] CA1: 1st cavity CA2: 2nd cavity CA3: 3rd cavity MP: Flowing resin OA: Optical axis OP1: Opening OP2: Opening OP3: Opening RE: Recess -36- 201229603 SP : Space 10: lens l〇a: first frame surface l〇b: second frame surface l〇c: side surface 1 1 : first lens element 1 1 a · lens body 1 1 b : frame portion 1 1 d, 1 Le : optical surface 12 : second lens element 1 2 a : lens main body 12b : frame portion 12d , 12e : optical surface 1 2 f : inclined surface 1 5 : aperture 2 0 : first holder member 20c : inner surface 2〇g : Inner surface 2〇i: outer peripheral side 2〇j: back surface 2 1 : side wall portion 21a: upper end surface 2 1 d : stepped convex portion 2 1 p : convex portion -37 201229603 2 1 r : inner peripheral concave portion 2 1 X : Concave portion 2 2 : bottom portion 22e : edge portion 2 2 f : slope portion 22 g : curved surface portion 22 h : wall portion 3 0 : second holder member 30e : edge portion 3 Oh : inner surface 3 0u : upper surface 3 1 : body 3 1 b : outer lower end surface 3 2 : convex portion 32x : convex portion 40 : bracket 50 0 : mold device 5 1 : first mold 5 1 a : split surface 5 2 : second mold 5 2 a : split surface 61 : first forming Part 6 1 a, 6 1 b : replication surface 6 1 f : fitting surface

S -38- 201229603 6 1 g : fitting member 6 1 p : outer peripheral surface 62 : second molding portion 62 a : replication surface 62 b : replication surface 62 f : fitting surface 62 p : outer peripheral bottom surface 63 : third molding portion 63 a : rewriting Surface 6 3 c : fixing member 63f : fitting surface 6 3 p : outer peripheral bottom surface 70 : insertion jig 7 1 : through hole 72 : disk member 73 a : fitting surface 1 : imaging lens unit 1 2 1 : side wall Part 1 2 1 r : outer peripheral concave portion 1 3 2 : convex portion 221 : side wall portion 3 2 1 : side wall portion 321r : inner peripheral concave portion 3 3 2 : convex portion 201229603 421 : side wall portion 421r : concave portion 4 3 2 : convex portion 5 2 1 : side wall portion 5 2 1 r : inner peripheral concave portion 5 3 2 : convex portion 6 1 0 : lens 651 : first mold 6 5 2 : second mold 664 : fourth molded portion 6 6 5 : fifth molded portion

Claims (1)

201229603 VII. Patent application scope: 1. A method for manufacturing an image pickup lens unit, comprising: a lens, a first holder member, and a second holder for holding the lens in cooperation with the first holder member a holder member, the method of manufacturing the image pickup lens unit, comprising: a first molding process of molding a resin material into a mold to form the first holder member having a positioning portion of the lens; and inserting the lens into the mold in the mold In the first holder member, a positioning process in which the lens abuts on the positioning portion of the first holder member is positioned; and a resin material flows into the mold, and is welded and fitted in the mold to cause the lens to be The second stent process in which the second stent member is prevented from being detached from the lens is formed in a manner of positioning the first stent member. 2. The method of manufacturing an image pickup lens unit according to the first aspect of the invention, wherein the resin for molding the second holder member is provided in the inner peripheral portion of the first holder member by the second molding process. road. 3. The method of manufacturing an image pickup lens unit according to the first aspect of the invention, wherein a flow path for forming a resin for molding the second holder member is provided in the outer peripheral portion of the first holder member by the second molding process. . 4. The method of manufacturing an image pickup lens unit according to the first aspect of the invention, wherein the resin for molding the second holder member is provided in the inner peripheral portion and the outer peripheral portion of the first holder member by the second molding process. The flow path used. In the method of manufacturing an image pickup lens unit according to the first aspect of the invention, the flow path of the inner peripheral portion and the outer peripheral portion of the first holder member is changed in a stepwise manner. This flow path is a flow path for the resin for molding the second holder member provided by the second molding process. 6. The method of manufacturing an image pickup lens unit according to the first aspect of the invention, wherein the resin passage for forming the second holder member is provided in the second molding process by the second molding process. 7. The method of manufacturing an image pickup lens unit according to the first aspect of the invention, wherein the first holder member is provided with a flow path for forming a resin for the second holder member by a recessed shape by the second molding process. . 8. The method of manufacturing an image pickup lens unit according to claim 1, wherein the mold for molding the second holder member directly presses the lens toward the first holder member. 9. The method of manufacturing an image pickup lens unit according to the eighth aspect of the invention, wherein the mold for molding the second holder member is a contact portion having a surface facing the periphery of the optical surface of the lens. 10. The method of manufacturing an image pickup lens unit according to the eighth aspect of the invention, wherein the mold for molding the second holder member has a shape that faces the optical surface of the lens and has substantially the same shape as the optical surface. Abut the surface. The method of manufacturing an image pickup lens unit according to claim 1, wherein the first holder member has a diaphragm formed to surround the optical surface of the lens. In the imaging method of claim 1, wherein the lens is a group lens in which a single lens is integrated. The imaging method of claim 1, wherein the lens includes a plurality of lenses, and the lens elements are sequentially inserted into the first holder member. The imaging lens of claim 1, wherein the lens is a quadrilateral column, and the imaging method of the first aspect of the invention is the first forming process. At least a part of the first molding space and at least a second molding space for forming the second holder member are formed in at least the same mold. The imaging method of claim 15, wherein the third forming component for forming the lens is provided in the same mold together with at least a part of at least a part of the space of the first molding space. The image-transparent method of claim 1, wherein the first and second holder members and the front-welding heat-resistant material are formed. 18. An image pickup lens unit comprising: a lens and a resin made of a positioning portion of the lens; and a manufacturing unit of the lens mirror unit or a manufacturing unit of a plurality of lens mirror units in cooperation with the first holder member The side of the manufacturing side of the plurality of mirror units. A part of the second forming process for the holder 1 of the mirror unit is a lens for manufacturing at least one portion of the manufacturing space of the mirror unit and the second forming mirror unit, and is a member of the back bracket member. And the second holder member made of a resin of the above-mentioned first holder member is a non-joint contact, and the second holder member is welded or attached to the first holder member and the aforementioned The fitting surface of the second bracket is welded and joined to the crucible 19. The imaging unit of the first aspect of the invention is described as a part of the second bracket member, which is fitted to the inner peripheral portion. 20 • Photographing the first part of the second bracket member as in the case of the patent application No. 18 is the outer circumference: the portion to be fitted. 2 1 . The image of the first aspect of the invention is as follows: a part of the second bracket member is at least one of the peripheral portion and the outer peripheral portion, and is fitted at a depth thereof; 1 bracket member. 22. A part of the second bracket member, as described in the patent application, is to enter the front inner cymbal 23. As shown in the patent application, the first bracket member of the ninth item is a sputum. The concave shape of the first embedded 1 is described. 24. The camera lens of claim 18 is a square-sided side 1 〇-44 - t state with the aforementioned lens followed by the aforementioned lens, the 丨 member is in the lens unit In the first holder member lens unit, the first holder member lens unit, wherein the first holder member changes its inner stage, the lens unit of the first holder member, wherein The lens unit of claim 18, wherein the first and second holder members and the lens are formed of a reflow heat-resistant material. The image pickup lens unit according to claim 18, wherein the first holder member has a diaphragm formed by enclosing an optical surface of the lens. -45-