JP4492085B2 - Imaging device and portable terminal - Google Patents

Description

  The present invention relates to an imaging apparatus, and more particularly to a small and thin imaging apparatus capable of macro photography that is built in a portable terminal or the like.

  Conventionally, a small and thin imaging device is mounted on a portable terminal which is a small and thin electronic device such as a mobile phone or a PDA (Personal Digital Assistant). Information can also be transmitted to each other.

  As an image pickup device used in these image pickup apparatuses, a solid-state image pickup device such as a CCD (Charge Coupled Device) type image sensor or a CMOS (Complementary Metal-Oxide Semiconductor) type image sensor is used.

  In recent years, these imaging devices have been aimed at enhancing functions and enabling not only pan-focus photography using a deep depth of field by fixing the imaging optical system but also macro photography by moving the imaging optical system. Has also become commercially available.

As an imaging device that enables macro photography, a projection lens and a cylindrical holder are formed with protrusions and inclined cam grooves, and the photographic lens is moved in the optical axis direction by rotating the photographic lens. In addition, there is disclosed a device that performs focus adjustment at the time of assembly and enables close-up photography using this inclined groove (see, for example, Patent Document 1).
JP 2002-82271 A

  Imaging devices built in these portable terminals are required to be as thin as possible with the reduction in the thickness of the equipment to be mounted, and it is difficult to meet this requirement using conventional ceramic packages and resin mold packages. . For this reason, the semiconductor image sensor chip on which the microlens array that is an image sensor is formed is mounted as it is on the printed circuit board constituting the image pickup apparatus, and then the optical system is assembled and integrated to reduce the size and thickness. Is common.

  Moreover, these portable terminals are carried by users and used under various environmental conditions. In particular, when the image sensor is exposed to high humidity for a long time, the surface of the image sensor is corroded or the microlens is adversely affected, resulting in a decrease in reliability.

  On the other hand, the imaging device described in Patent Document 1 is formed by forming a protrusion on the photographing lens and an inclined cam groove on a cylindrical holder, and rotating a press with an aperture stop disposed at the tip of the imaging device. The photographic lens is rotated and moved along the inclined groove in the optical axis direction. With such a configuration, between the portion of the photographic lens circumference where there is no protrusion and the inside of the cylindrical holder There is a problem that moisture can easily enter from the gap and adversely affect the image sensor.

  When the imaging optical system is moved along the cam using a cam groove or a cam surface, if foreign matter adheres to the cam surface, the operation of the imaging optical system may be hindered, or the light of the imaging optical system may be There is a problem that the axis is inclined.

  In view of the above problems, the present invention has a configuration in which an imaging optical system is moved along a cam, foreign matter does not adhere to the cam, an accurate operation of the imaging optical system is obtained, and imaging that is disposed inside the imaging apparatus An object of the present invention is to obtain an imaging apparatus capable of moving a photographing optical system for macro photography and a portable terminal equipped with the same, which can prevent moisture from entering the element.

  The above-described problem can be solved as follows.

1) An image sensor that photoelectrically converts subject light, an imaging optical system that guides the subject light to the photoelectric conversion region of the image sensor, and an abutting portion that is formed on a portion other than the optically effective surface of the imaging optical system A cam member having a cam surface; and a base member assembled to a printed circuit board on which the image sensor is mounted. The cam member is made of a translucent material, and the photoelectric conversion surface of the image sensor a transparent portion of the formed object light flux so as to cover the side, as well as have a lower step portion than the cam surface is fitted to the base member at the outer periphery side, by adhesive applied to the step portion An image pickup apparatus bonded to the base member.

2 ) The imaging device according to 1 ) , wherein a plurality of the cam surfaces are formed on the cam member, and the stepped portion is also formed in a region between the plurality of cam surfaces.

3 ) The cam member includes a leg portion that comes into contact with the imaging element, and the leg portion is bonded to the base member in a state of coming into contact with the imaging element,
The imaging optical system is urged to the image pickup device direction by the biasing member, the abutment portion the is in contact with the cam surface of the cam member in 1) or 2) of the imaging device.

4 ) A portable terminal comprising the imaging device according to any one of 1) to 3 ).

An image pickup device, an image pickup optical system, a cam member having a cam surface that comes into contact with a contact portion formed on a portion other than the optically effective surface of the image pickup optical system, and a printed circuit board on which the image pickup device is mounted. A base member assembled , and the cam member is made of a translucent material, and the translucent part of the subject luminous flux formed so as to cover the photoelectric conversion surface side of the image sensor, and the cam surface than the cam surface while have a lower stepped portion is fitted with the base member at the outer peripheral side surface, an imaging apparatus characterized by being bonded to the base member by adhesive applied to the stepped portion by the adhesive agent An image pickup apparatus that does not protrude on the cam surface formed on the cam member, can prevent adhesion of an adhesive and foreign matter, and does not hinder the operation of the image pickup optical system can be obtained.

  Also, by fitting with the base member on the outer peripheral side surface of the cam member, the adhesive enters the outer peripheral side surface portion and the inner peripheral side surface portion of the base member by capillary action, and the space of the image sensor can be sealed. An imaging apparatus that prevents moisture from entering the space of the imaging element from the outside can be obtained.

  Also, by forming a plurality of cam surfaces on the cam member and forming the stepped portion also in the region between the cam surfaces, a wide area can be secured at the adhesive injection position, facilitating the bonding process. Will be able to.

  The cam member includes a leg portion that comes into contact with the image sensor, and is adhered to the base member in a state where the leg portion is in contact with the image sensor, and the imaging optical system is urged in the direction of the image sensor by the urging member. By making contact with the cam surface of the cam member at the contact portion, it is possible to reduce the cost by minimizing the number of intervening parts for positioning in the optical axis direction of the imaging optical system, and in addition, the focal position after assembly Accuracy can be improved.

  Furthermore, by using a portable terminal equipped with the above-described imaging device, it is possible to perform macro photography, which can prevent the accurate operation of the imaging optical system and the intrusion of moisture into the imaging device arranged inside the imaging device. A portable terminal can be obtained.

  Hereinafter, the present invention will be described in detail with reference to embodiments, but the present invention is not limited thereto.

  FIG. 1 is an external view of a mobile phone T which is an example of a mobile terminal provided with the imaging device of the present invention.

  In the mobile phone T shown in the figure, an upper casing 71 as a case having a display screen D and a lower casing 72 having an operation button P are connected via a hinge 73. The imaging device S is built under the display screen D in the upper casing 71 and is arranged so as to capture subject light from the outer surface side of the upper casing 71. A manual operation member 75 is disposed below the display screen D in the upper housing 71.

  Note that the position of the imaging device S may be arranged above the display screen D in the upper casing 71. Further, the mobile phone is not limited to a folding type.

(First embodiment)
Hereinafter, the first embodiment will be described.

  FIG. 2 is a perspective view of the imaging apparatus 100 according to the present invention. This imaging apparatus 100 is built in the position of the imaging apparatus S shown in FIG.

  As shown in the figure, the outer surface of the imaging device 100 is a lid having a printed circuit board 11 on which an imaging element is mounted, a connector 17 for connection to another control board of the mobile terminal, a base member 12, and an opening 13k. The member 13, the decorative plate 14, and the rotation member 15 formed with an operation portion 15 s for rotation are formed. The operation unit 15 s is mechanically coupled to the manual operation member 75 shown in FIG. 1 inside, and the rotation member 15 is configured to rotate in conjunction with the manual operation member 75. On the printed circuit board 11, various electrical components such as resistors and capacitors are mounted (not shown).

  When the imaging apparatus 100 is built in a portable terminal, the imaging apparatus 100 is incorporated into the cover member 13 or the decorative plate 14 so as to be pressed against the cover glass via a rubber O-ring or the like. For this reason, dust does not enter through the opening 13k after being incorporated in the portable terminal. Further, the opening 13k is shielded by a sheet material or the like before being incorporated in the portable terminal, thereby preventing dust from entering.

  FIG. 3 is a schematic cross-sectional view showing the internal structure of the imaging apparatus 100 of the present invention. This figure shows a cross section taken along the line FF shown in FIG. 1, with the optical axis O of the imaging optical system as a boundary and the right side of the imaging optical system in focus on the hyperfocal length. The left side shows a macro shooting state in which the focus of the imaging optical system is moved by a predetermined amount to the subject side and the focus is adjusted to a short distance. In the following drawings, the same functional parts are given the same reference numerals in order to avoid duplication of explanation. In addition, the following description is demonstrated using Fig.3 (a).

  As shown in FIG. 2A, the imaging apparatus 100 includes an imaging optical system 50 including a first lens 1, a second lens 2, a third lens 3, and a diaphragm attached to each lens. Mounted on a printed circuit board 11 and a cam member 7 having cam portions 7c formed at positions that come into contact with three protrusions 3d (contact portions) integrally formed on the image surface side other than the optically effective surface of the third lens. An image sensor 8 is arranged.

  As shown in the figure, the first lens 1, the second lens 2, and the third lens 3 are brought into contact with each other at a flange portion other than the optically effective surface, and are united together by being fixed to each other with an adhesive or the like. By constructing without interposing other members, the mutual lens interval can be assembled without error.

  The cam member 7 is made of a translucent material, and has a translucent portion 7a for a subject light beam formed so as to cover the photoelectric conversion surface side of the image pickup device, and the surfaces 7b1 and 7b2 of the translucent portion 7a. Among them, the surface 7b1 on the object light incident side is formed at a position protruding from the cam surface, and infrared light cut coating is applied. The cam member 7 is integrally formed with a plurality of leg portions 7 d and is in contact with a region other than the photoelectric conversion surface on the photoelectric conversion surface side of the image sensor 8.

  Thus, the position of the cam surface that determines the position of the image pickup optical system 50 in the optical axis direction with respect to the image pickup element 8 is accurately determined by bringing the leg 7d into contact with the image pickup element 8.

  The imaging optical system 50 unitized as a unit is urged in the direction of the imaging element 8 by a compression coil spring 9 whose flange portion of the third lens 3 is an urging member. Thereby, the imaging optical system 50 determines the distance in the optical axis direction from the imaging element 8 via the cam member 7.

  The cam member 7 is fitted inside the base member 12 and bonded and held by an adhesive. Further, the outer frame member 16 that includes the imaging optical system 50 is assembled to the base member 12. A rotating member 15 is rotatably mounted on the outer surface of the outer frame member 16. The rotating member 15 is assembled so that the engaging portion 15 t formed integrally on the inside engages with the engaging portion 3 t of the third lens 3. The lid member 13 is assembled to the outer frame member 16 after the compression coil spring 9 is assembled.

  Further, an opening is formed in the outer frame member 16, and this is a region in which the engaging portion 15 t formed in the rotating member 15 rotates. As shown in the figure, the opening is shielded by the rotating member 15 (see the right side from the optical axis O in FIG. 3).

  That is, the engaging portion 15t formed on the rotating member 15 is rotated by rotating the operation portion 15s of the rotating member 15 supported on the outside of the outer frame member 16. Accordingly, the third lens 3 that engages with the engaging portion 15t, that is, the imaging optical system 50 also rotates, and the protrusion 3d of the third lens 3 extends along the cam surface on the cam portion 7c of the cam member 7. By moving, the lens moves in the direction of the optical axis O against the urging force of the compression coil spring 9 and is in a macro photography state focused on a short distance (see the left side of the optical axis O in FIG. 3). At this time, in the imaging optical system 50, the outer periphery of the flange portion of the third lens 3 is fitted inside the outer frame member 16 as shown in the figure, and is guided in the optical axis O direction by this fitting portion. Yes.

  Further, the imaging apparatus of the present invention will be described in more detail with reference to FIGS. 4 to 9 which are perspective views of the respective members.

  FIG. 4 is a perspective view of the base member 12. The figure shows a state in which the base member 12 is assembled on the printed circuit board 11 on which the image sensor 8 is mounted.

  The base member 12 is placed so that the position of the image pickup device 8 mounted on the printed circuit board 11 is confirmed by a TV camera provided on a jig, and the position with respect to the image pickup device 8 becomes a predetermined position. The entire outer peripheral portion is bonded and fixed to the printed circuit board 11 using, for example, an ultraviolet curable adhesive.

  As shown in the drawing, the base member 12 is formed with two concave portions 12h and four adhesive reservoir portions 12s. The two concave portions 12h are formed at symmetrical positions in order to increase the degree of freedom during assembly so that the base member 12 can be assembled even if it is rotated 180 degrees during the assembly.

  FIG. 5 is a perspective view of the cam member 7. This figure is a view of the cam member 7 as viewed from obliquely above the subject side. The cam member 7 is formed of a translucent material and a translucent portion 7 a is formed so as to cover the upper surface of the image sensor 8.

  As shown in the figure, a convex portion 7h is formed on the outer periphery of the cam member 7, and this convex portion 7h is fitted into one concave portion 12h of the base member 12 shown in FIG. . Further, the gate portion 7q formed at a position shifted by 180 degrees from the convex portion 7h is formed to have a smaller width and protruding amount than the convex portion 7h, and is accommodated in the other concave portion of the base member 12. The outer peripheral side surface portion 7f is fitted and assembled with the inner peripheral side surface portion 12f of the base member 12 shown in FIG.

  The cam member 7 has cam portions 7c periodically arranged at intervals of approximately 120 degrees in the vicinity of the outer periphery thereof. Further, the cam portion 7c is formed by horizontal surfaces 7m and 7n having different positions in the optical axis direction, and an inclined surface 7j connecting the horizontal surfaces 7m and 7n.

  Further, a level difference 7g lower than the inclined surfaces 7j connecting the horizontal surfaces 7m and 7n is formed between the cam portions and the cam surfaces. The step portion 7g is also formed between the side surface of the cam portion 7c and the outer side surface portion 7f, and is formed around the cam member 7 excluding the convex portion 7h and the gate portion 7q.

  By dropping the cam member 7 into the base member 12 shown in FIG. 4, the leg portion 7d formed integrally with the cam member 7 comes into contact with the image sensor 8 shown in FIG. The cam member 7 is bonded and fixed to the base member 12 shown in FIG. 4 by applying, for example, an ultraviolet curable adhesive to the stepped portion 7g in the contacted state.

  By doing in this way, it can prevent that an adhesive protrudes on the horizontal surfaces 7m and 7n which are the cam surfaces of the cam part 7c, and the inclined surface 7j which connects these horizontal surfaces 7m and 7n, and adhesion of an adhesive agent and a foreign material Can be prevented, and can enter between the outer side surface portion 7f and the inner side surface portion 12f of the base member 12 by capillarity to seal the space of the image sensor 8. It is possible to prevent moisture from entering the outside.

  Further, of the surfaces 7b1 and 7b2 of the light transmitting portion 7a formed so as to cover the upper surface of the image sensor 8, the surface 7b1 on the subject light incident side is higher than the cam portion 7c, that is, higher than the higher horizontal surface 7m. It is formed at a position on the subject side in the optical axis direction. An infrared light cut coating with, for example, a dielectric multilayer film is performed on the object light incident side surface 7b1 in order to prevent infrared light from reaching the image sensor 8.

  In this way, the surface on which the infrared light cut coating is applied is a surface 7b1 in which at least the peripheral surface portion is formed at a position (projected position) on the object side in the optical axis direction from the cam portion 7c. The surface 7b1 to be coated is easily exposed from the jig holding the member, and a film can be uniformly formed on the surface 7b1. In addition, it is possible to prevent the cam portion 7c from being coated, and to prevent generation of dust due to wear or the like. Furthermore, by arranging the surface to be subjected to infrared cut coating in the space on the image plane side behind the imaging optical system 50, the thickness of the imaging device 100 can be suppressed and the thickness can be reduced.

  Further, as shown in the drawing, it is desirable to form a frame portion 7p slightly higher than the surface 7b1 around the surface to be coated 7b1. This is to prevent the coated surface 7b1 from coming into contact when the coated surface 7b1 is placed on the lower surface for some reason. In this example, although formed over the circumference, a plurality of protrusions or the like may be used.

  Further, as shown in FIG. 3B, the coating surface 7b1 may be a concave surface when viewed from the subject light incident side. In general, in an optical system such as the present invention, the distance to the exit pupil is shortened, and the exit angle is increased in the periphery. By doing so, the peripheral portion of the subject light beam emitted from the final surface of the imaging optical system 50 is increased. The incident angle on the coated surface 7b1 can be reduced with respect to the inclination of the light beam, and the change in spectral transmittance due to the change in the incident angle on the dielectric multilayer film can be suppressed. Moreover, you may shape | mold the cam member 7 with an infrared-light absorption member instead of an infrared cut coating.

  FIG. 6 is a perspective view of the outer frame member 16. The outer frame member 16 is assembled on the base member 12 shown in FIG. 4, and is bonded and fixed by the adhesive reservoir portion 12s in a state where the protrusion 16a is fitted.

  As shown in the figure, the outer frame member 16 is formed with a cylindrical portion 16e formed in a cylindrical shape, an opening portion 16k opened in the cylindrical portion 16e, and a rib 16b. The inner diameter of the cylindrical portion of the outer frame member 16 is formed to be small on the image sensor side and large on the subject side (see the left side from the optical axis O in FIG. 3A). This is because the imaging optical system 50 is incorporated from the subject side.

  FIG. 7 is a perspective view of the imaging optical system 50 unitized as a unit. FIG. 6A is a diagram of the imaging optical system 50 viewed from obliquely above the subject side, and FIG. 6B is a diagram of the imaging optical system 50 viewed from diagonally below the imaging element side.

  As shown in FIG. 2A, the imaging optical system 50 including the first lens 1, the second lens 2, the third lens 3, and the diaphragm attached to each lens is provided with a flange portion of the third lens 3. Three engaging portions 3t are formed at intervals of approximately 120 degrees. One of the engaging portions 3t and the engaging portion 15t formed on the rotating member 15 shown in FIG. 3 are engaged and rotated.

  Further, a compression coil spring 9 as an urging member shown in FIG. 3 is hung on the flat surface portion 3b of the flange portion of the third lens 3. The compression coil spring 9 is prevented from coming off by three engaging portions 3t. Further, the outer peripheral portion 3f of the flange portion of the third lens 3 and the inner periphery of the outer frame member 16 shown in FIGS. 3 and 6 are fitted to serve as a guide for movement of the imaging optical system 50 in the optical axis direction. Yes. The depth of the engaging portion 3t in the optical axis direction is sufficiently secured even when the imaging optical system 50 moves in the optical axis direction. Note that at least one engaging portion 3t may be provided.

  As shown in FIG. 5B, the third lens 3 of the imaging optical system 50 corresponds to the cam portion 7c of the cam member 7 shown in FIG. 5 in a region other than the optically effective surface on the imaging element side. Three protruding portions 3d are formed at the positions. The three projections 3d come into contact with the three cam portions 7c of the cam member shown in FIG. 5, and move from the horizontal plane 7n to the horizontal plane 7m via the inclined plane 7j, so that the macro photography is performed from the overfocus position. By moving from the horizontal plane 7m to the horizontal plane 7n via the inclined plane 7j, the macro shooting position returns to the hyperfocal position.

  The protrusion 3d is preferably a part of a cylinder as shown in the figure, and by doing so, a sufficient strength against an impact or the like can be maintained. The protrusion 3d may have a shape such as a part of a triangular prism with a rounded tip or a part of a spherical surface.

  FIG. 8 is a perspective view of the rotating member 15.

  The rotating member 15 is incorporated in the outer peripheral surface of the cylindrical portion 16e of the outer frame member 16 shown in FIG. 6, and the rib 16b serves as a receiving portion. Further, the engaging portion 15t is located in the region of the opening 16k of the outer frame member 16 shown in FIG. 6, and is incorporated so as to engage with one of the engaging portions 3t of the imaging optical system 50 shown in FIG.

  The length of the cylindrical portion of the rotating member 15 (indicated by H in FIG. 8) is substantially the same as the length above the ribs 16b of the outer frame member 16 shown in FIG. 6 (indicated by H in FIG. 6). Is formed. Thereby, the opening 16k of the outer frame member 16 can be shielded by the rotating member 15 disposed on the side surface of the outer frame member 16.

  The position of the operating portion 15s and the position of the engaging portion 15t are different positions in the circumferential direction. By arranging in this way, a corresponding imaging device 100 can be obtained simply by preparing the rotating member 15 in which the position of the operation unit 15 s is adapted in the case of being incorporated in portable terminals having various different layouts. .

  The engaging portion 15t formed on the rotating member 15 is set so that there is no interference in the optical axis direction even when the imaging optical system 50 shown in FIG. 7 moves in the optical axis direction. It is.

  FIG. 9 is a cross-sectional view illustrating the engagement relationship between the rotating member 15 and the third lens 3 of the imaging optical system 50 with the outer frame member 16 interposed therebetween.

  As shown in the figure, the third lens 3 is disposed inside the cylindrical portion 16e of the outer frame member, the rotating member 15 is disposed on the outer periphery, and the engaging portion of the rotating member 15 is disposed in the opening 16k of the outer frame member. 15t protrudes and engages with the engaging portion 3t of the third lens 3. Thereby, the rotation member 15 and the third lens 3 can be rotated integrally within the range of the opening 16k with the cylindrical portion 16e interposed therebetween. That is, the imaging optical system 50 is guided inside the outer periphery 3f of the flange portion of the third lens 3 and the cylindrical portion 16e of the outer frame member, and the rotating member 15 is supported outside the cylindrical portion 16e of the outer frame member.

  Note that the engaging portion 3t is desirably formed inside the flange portion outer periphery 3f. By doing so, there is an advantage that the area of the opening 16k can be reduced even at the same rotation angle.

  As described above, the opening 16k of the outer frame member 16 is shielded by the rotating member 15 disposed on the side surface of the outer frame member 16, and the upper surface is covered with the lid member 13 as shown in FIG. It is attached. As already described with reference to FIG. 2, when the imaging device 100 is incorporated into a portable terminal, the lid member 13 is incorporated so as to be pressed against the cover glass via a rubber O-ring or the like. It is possible to obtain an imaging device that can prevent dust from entering the imaging device 100 from the outside and can move the photographing optical system for macro photography while preventing dust from entering the imaging device. It becomes possible.

  Further, the outer frame member 16 and the base member 12 may be integrally formed. However, by separating as described above, the needle for applying the adhesive can be easily brought close to a predetermined position and bonded. Sealing can be performed more reliably.

(Second Embodiment)
Next, a second embodiment will be described. In the second embodiment, the same functional parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different portions will be described.

  FIG. 10 is a perspective view of the imaging apparatus 200 according to the present invention. This imaging apparatus 200 is built in the position of the imaging apparatus S shown in FIG.

  As shown in the figure, the outer surface of the imaging device 200 is different from the imaging device 100 shown in FIG. 2 in the position where the rotating member 15 and the lid member 13 are in contact with each other and closer to the substrate. This is the same as the device 100.

  FIG. 11 is a schematic cross-sectional view showing the internal structure of the imaging apparatus 200 of the present invention. This figure shows a cross section taken along the line GG shown in FIG. 10, with the optical axis O of the imaging optical system as a boundary, and the right side of FIG. The left side shows a macro shooting state in which the focus of the imaging optical system is moved by a predetermined amount to the subject side and the focus is adjusted to a short distance.

  An image pickup apparatus 200 shown in FIG. 1 is mounted on an image pickup optical system 50 including a first lens 1, a second lens 2, a third lens 3, and a diaphragm attached to each lens, a cam member 7, and a printed board 11. The shapes and operations of the image pickup element 8, the compression coil spring 9 that is an urging member, the base member 12, the decorative plate 14, and the outer frame member 16 are the same as those already described in the first embodiment.

  As shown in the figure, in the imaging apparatus 200, the length K of the cylindrical portion of the rotating member 15 is shorter than the length H of the outer frame member 16 above the rib 16b. On the other hand, an overhang having a length L is formed on the lid member 13 so as to cover the outer frame member 16 in the cylindrical direction, and the opening 16k (see FIG. 6) of the outer frame member 16 is formed on the rotating member 15 and the lid member 13. It is shielded by.

  Further, the lid member is formed with a tongue portion 13j so as to protrude inside the cylindrical portion of the rotating member 15.

  By doing so, it is possible to form a portion that shields the opening 16k of the outer frame member 16 with the tongue portion 13j of the lid member 13 and the cylindrical portion of the rotating member 15, and to prevent dust from the outside. Intrusion prevention can be made more complete.

  As described above, the opening member 16k of the outer frame member 16 is shielded by the rotating member 15 disposed on the side surface of the outer frame member 16 and the lid member 13 disposed on the upper surface, so that already in FIG. As described above, when the imaging device 100 is incorporated into the portable terminal, the lid member 13 is incorporated so as to be pressed against the cover glass via a rubber O-ring or the like. It is possible to obtain an image pickup apparatus that can prevent dust from entering from the outside and can move the photographing optical system for macro photography while preventing dust from entering the inside of the image pickup apparatus.

  Of course, the tongue portion formed on the lid member described in the second embodiment can be applied to the first embodiment described above.

It is an external view of the mobile telephone T which is an example of the portable terminal provided with the imaging device of this invention. 1 is a perspective view of an imaging apparatus 100 according to the present invention. It is a schematic sectional drawing which shows the internal structure of the imaging device 100 of this invention. It is a perspective view of a base member. It is a perspective view of a cam member. It is a perspective view of an outer frame member. It is a perspective view of the imaging optical system unitized integrally. It is a perspective view of a rotation member. It is sectional drawing which shows the engagement relationship of a rotation member and the 3rd lens of an imaging optical system on both sides of an outer frame member. It is a perspective view of imaging device 200 concerning the present invention. It is a schematic sectional drawing which shows the internal structure of the imaging device 200 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st lens 2 2nd lens 3 3rd lens 7 Cam member 8 Image pick-up element 9 Biasing member 11 Printed circuit board 12 Base member 13 Cover member 14 Decorative plate 15 Rotating member 16 Outer frame member 17 Connector

Claims (4)

An imaging device that photoelectrically converts subject light, an imaging optical system that guides the subject light to the photoelectric conversion region of the imaging device, and a cam surface that contacts an abutting portion formed on a portion other than the optically effective surface of the imaging optical system A base member assembled to a printed circuit board on which the image sensor is mounted ,
The cam member has a light-transmitting material is used, a transparent portion of the formed object light flux so as to cover the photoelectric conversion surface side of the imaging element, as well as have a lower step portion than the cam surface, An imaging apparatus, wherein the imaging device is fitted to the base member on an outer peripheral side surface and adhered to the base member with an adhesive applied to the stepped portion. The cam surface is formed in plural on the cam member, the imaging apparatus according to claim 1, characterized in that also formed in a region between the stepped portion of the plurality of cam surfaces. The cam member includes a leg portion that comes into contact with the image sensor, and the leg member is bonded to the base member in a state of being in contact with the image sensor,
3. The imaging according to claim 1 , wherein the imaging optical system is biased toward the imaging element by a biasing member and is in contact with a cam surface of the cam member at the contact portion. apparatus. A portable terminal comprising the imaging device according to claim 1.

Images