JP4403770B2 - Imaging apparatus and manufacturing method of imaging apparatus - 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 between 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, the projection lens and the cylindrical holder are formed with protrusions and inclined grooves, and the photographing lens is rotated to move the photographing lens in the optical axis direction for assembly. There is disclosed an apparatus that adjusts the focus of time and enables close-up photography using this inclined groove (see, for example, Patent Document 1).
JP 2002-82271 A

  In recent years, the number of mobile terminals, particularly mobile phones, incorporating the above-described imaging device has increased rapidly, and accordingly, the demand for small and thin imaging devices that can be incorporated in mobile terminals has also increased rapidly.

Such an image pickup apparatus is a very small device having a volume of 1 cm ³ or less, and requires very delicate handling for manual assembly by an operator, resulting in high assembly costs. In addition, it is difficult for human assembly to quickly respond to an increase or decrease in demand. For this reason, it is conceivable to automate the assembly and flexibly respond to the increase or decrease in demand at a low cost.

  On the other hand, the imaging device described in the above-mentioned Patent Document 1 forms a protrusion and an inclined groove between the photographing lens and the cylindrical holder, and when assembled, the protrusion and the inclined groove are combined. Therefore, there is a problem that the structure is not suitable for automation of assembly.

  In view of the above problems, an object of the present invention is to obtain an imaging apparatus capable of macro photography that can be automated and can be flexibly adapted to increase and decrease in demand.

  The above-described problem can be solved as follows.

1) Printed circuit board on which an image sensor that photoelectrically converts subject light is mounted, an imaging optical system that guides the subject light to the photoelectric conversion region of the image sensor, and a protrusion formed on a portion other than the optically effective surface of the image pickup optical system engaging the abutting leg parts and abutting against the cam portion in a region other than the photoelectric conversion surface of the imaging element is engaged with the imaging optical system while being arranged so as to be a cam member formed integrally, rotation And the cam member is placed on the image sensor with the leg contacting the region other than the photoelectric conversion region of the image sensor. The imaging optical system is placed on the cam member with the protrusion abutting on the cam portion, and the rotating member engages the engagement portion with the imaging optical system. An imaging system characterized by being mounted and assembled from above the imaging optical system Image device.

2) Printed circuit board on which an imaging device for photoelectrically converting subject light is mounted, an imaging optical system that guides subject light to the photoelectric conversion region of the imaging device, and a protrusion formed on a portion other than the optically effective surface of the imaging optical system enclosing a cam member which abuts the leg portions in a region other than the photoelectric conversion surface of the abutting cam portion wherein the imaging element is formed integrally with the section, and a base member for holding the cam member, at least the imaging optical system Manufacturing of an imaging apparatus having an outer frame member and a rotating member that is rotatably disposed on an outer surface of the outer frame member and that is integrally formed with an engaging portion that engages with the imaging optical system. a method, a step of fixing by mounting the base member to a predetermined position of the printed circuit board, darken the cam member to the base member, in a state where the leg portion is brought into contact with the image sensor Fixed to the base member A step of a step of fixing the outer frame member to the base member, the inner side of the outer frame member, a step of the imaging optical system, incorporated to the protrusion is brought into contact with the cam portion, the rotation the member, have a, a step of the embedded engaging portion Ru is engaged with the imaging optical system on the outer surface of the outer frame member, said base member, said cam member, the outer frame member, the imaging optical system the method of the imaging apparatus the rotary member is characterized that you have assembled is placed in the same direction.

3 ) Printed circuit board on which an image sensor that photoelectrically converts subject light is mounted, an imaging optical system that guides the subject light to the photoelectric conversion region of the image sensor, and a protrusion formed on a portion other than the optically effective surface of the imaging optical system parts and a cam member which abuts the leg portion is formed integrally with a region other than the photoelectric conversion surface of the abutting cam portion the imaging element, the Manual for enclosing at least the cam member and the imaging optical system, the main And a rotating member integrally formed with an engaging portion that engages with the imaging optical system and is rotatably disposed on an outer surface of the body, wherein the printed circuit board and fixing by mounting the main body to a predetermined position, and fixing to said darken the cam member in the main in the body, the main body in a state where the leg portion is in contact with the image-capturing element , on the inside of said main body, said imaging optical system A step of incorporation so that the protrusion is brought into contact with the cam portion, the rotating member, have a, a step of the embedded engaging portion Ru is engaged with the imaging optical system on the outer surface of the main cylinder, A method of manufacturing an imaging apparatus, wherein the main cylinder, the cam member, the imaging optical system, and the rotating member are mounted and assembled from the same direction .

According to the present invention, it is possible to automate the assembly, thereby at low cost, can be obtained an imaging apparatus capable of flexibly adaptable macro shooting decrease in demand.

In addition, according to the present invention, the components can be assembled from the same direction, and the assembly can be automated, whereby an imaging apparatus capable of macro photography can be manufactured at low cost.

  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 any other member, 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.

Next, the assembly of the imaging device according to the present invention will be described.

  FIG. 12 is a diagram illustrating the assembly direction and order of the imaging device according to the present invention. Since the imaging device 100 of the first embodiment and the imaging device 200 of the second embodiment are the same in the assembly direction and the order, hereinafter, each member of the imaging device 100 is used according to the same drawing. explain.

  (1) After mounting the connector 17 and an electric component (not shown) on the printed circuit board 11 which is a base for assembly, the image pickup device 8 is finally mounted as the mounting component. This is for minimizing the thermal load on the image sensor 8 on which the microlens array or the like is formed.

  (2) The position of the image sensor 8 mounted on the printed circuit board 11 is confirmed by a TV camera provided on the jig, and the base member 12 is placed at a predetermined position with respect to the image sensor 8. The entire outer periphery is bonded and fixed to the printed circuit board 11 using, for example, an ultraviolet curable adhesive.

(3) While the cam member 7 is fitted to the inner periphery of the base member 12, the convex portion 7h is fitted and placed in the concave portion of the base member. Thereby, the leg portion 7 d formed integrally with the cam member 7 comes into contact with the image sensor 8. In this state, for example, an ultraviolet curable adhesive is applied to the stepped portion 7g, whereby the cam member 7 is bonded and fixed to the base member 12 and the space of the imaging element 8 is sealed. (See Figure 5)
(4) The outer frame member 16 is placed on the base member 12 and bonded and fixed.

  (5) The imaging optical system 50 is placed on the inner periphery of the cylindrical portion of the outer frame member 16 so that the three engaging portions 3t are at predetermined positions. As a result, the protrusion 3d comes into contact with a predetermined position on the cam portion 7c of the cam member 7.

  (6) The rotating member 15 is dropped and placed on the outer peripheral surface of the cylindrical portion of the outer frame member 16, and is received and supported by the rib 16b. The engaging portion 15t is located in the region of the opening 16k of the outer frame member 16, and is incorporated so as to engage with one of the engaging portions 3t of the imaging optical system 50.

  (7) The urging member 9 is placed on the surface 3 b of the imaging optical system 50.

  (8) The lid member 13 is placed on the outer frame member 16 and fixed by adhesion. This adhesion is performed at three holes 13s.

  (9) The decorative plate 14 is placed and fixed on the lid member 13. For this fixing, an adhesive or a double-sided pressure-sensitive adhesive tape is used.

  As described above, the imaging device can be manufactured simply by placing the base member, the cam member, the outer frame member, the imaging optical system, and the rotating member on the printed circuit board from the same direction. Assembly can be automated. As a result, it is possible to obtain an imaging apparatus that can be flexibly adapted to increase and decrease in demand at low cost.

  FIG. 13 is a diagram illustrating another example of the assembly direction and order of the imaging apparatus according to the present invention. The figure shows a case where a main body 18 in which the base member 12 and the outer frame member 16 shown in FIG. 12 are integrated is used. Hereinafter, description will be given with reference to FIG.

  (1) Similarly to FIG. 12, after mounting the connector 17 and an electric component (not shown) on the printed circuit board 11 as a base for assembly, the imaging element 8 is finally mounted as a mounting component.

  (2) The position of the image sensor 8 mounted on the printed circuit board 11 is confirmed by a TV camera provided on the jig, and the main cylinder 18 is placed at a predetermined position with respect to the image sensor 8. The entire outer periphery is bonded and fixed to the printed circuit board 11 using, for example, an ultraviolet curable adhesive.

(3) The cam member 7 is fitted and placed inside the main cylinder. Thereby, the leg portion 7 d formed integrally with the cam member 7 comes into contact with the image sensor 8. In this state, for example, an ultraviolet curable adhesive is applied to the stepped portion 7g, whereby the cam member 7 is bonded and fixed to the base member 12 and the space of the imaging element 8 is sealed. (See Figure 5)
(4) The imaging optical system 50 is placed on the inner periphery of the cylindrical portion of the main body 18 so that the three engaging portions 3t are at predetermined positions. As a result, the protrusion 3d comes into contact with a predetermined position on the cam portion 7c of the cam member 7.

  (5) The rotating member 15 is dropped and placed on the outer peripheral surface of the cylindrical portion of the main body 18, and is received and supported by the rib 18b. Further, the engaging portion 15t is located in the region of the opening 18k of the main trunk and is incorporated so as to engage with one of the engaging portions 3t of the imaging optical system 50.

  (6) The urging member 9 is placed on the surface 3 b of the imaging optical system 50.

  (7) The lid member 13 is placed on the main trunk 18 and fixed by adhesion. This adhesion is performed at three holes 13s.

  (8) The decorative plate 14 is placed and fixed on the lid member 13. For this fixing, an adhesive or a double-sided pressure-sensitive adhesive tape is used.

  As described above, even if the main cylinder in which the base member 12 and the outer frame member 16 described with reference to FIG. 12 are used, the main cylinder, the cam member, the outer frame member, the imaging optical system, and the rotation member are formed on the printed circuit board. It is possible to manufacture the imaging device only by placing them in the same direction, and the assembly can be automated. As a result, it is possible to obtain an imaging apparatus that can be flexibly adapted to increase and decrease in demand, similarly at low cost.

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. It is the figure which showed the assembly direction and order of the imaging device which concerns on this invention. It is the figure which showed the other example of the assembly direction and order of the imaging device which concerns on 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 18 Main trunk

Claims (3)

A printed circuit board on which an imaging device for photoelectrically converting subject light is mounted; an imaging optical system that guides subject light to the photoelectric conversion region of the imaging device; and a protrusion formed on a portion other than the optically effective surface of the imaging optical system; a cam member which abuts the leg portions in a region other than the photoelectric conversion surface of the abutting cam portion wherein the imaging element is formed integrally with an engaging portion which can be engaged with the imaging optical system while being arranged pivotably is A pivot member formed integrally,
The cam member is placed on the image sensor with the legs contacting an area other than the photoelectric conversion area of the image sensor,
The imaging optical system is placed on the cam member with the protrusion contacting the cam.
The rotary member is an imaging apparatus, characterized in that the engagement portion is engaged with the imaging optical system is assembled is placed from above of the imaging optical system. A printed circuit board on which an imaging device for photoelectrically converting subject light is mounted; an imaging optical system that guides subject light to the photoelectric conversion region of the imaging device; and a protrusion formed on a portion other than the optically effective surface of the imaging optical system; a cam member which abuts the leg portions in a region other than the photoelectric conversion surface of the abutting cam portion wherein the imaging element is formed integrally with the base member for holding the cam member, the outer frame enclosing at least the imaging optical system A method for manufacturing an imaging apparatus, comprising: a member; and a rotating member that is rotatably disposed on an outer surface of the outer frame member and is integrally formed with an engaging portion that engages with the imaging optical system. There,
And fixing by mounting the base member to a predetermined position of the printed circuit board,
And fixing to the base member by the darken the cam member to the base member in a state where the leg portion is brought into contact with the image sensor,
And fixing the outer frame member to said base member,
Inside of the outer frame member, a step of the imaging optical system, incorporated to the protrusion is brought into contact with the cam portion,
Wherein the rotating member, have a, a step of the embedded engaging portion Ru is engaged with the imaging optical system on the outer surface of the outer frame member,
Said base member, said cam member, the outer frame member, the imaging optical system, the imaging device manufacturing method wherein the rotating member is characterized that you have assembled is placed in the same direction. A printed circuit board on which an imaging device for photoelectrically converting subject light is mounted; an imaging optical system that guides subject light to the photoelectric conversion region of the imaging device; and a protrusion formed on a portion other than the optically effective surface of the imaging optical system; A cam member integrally formed with a cam portion that abuts and a leg portion that abuts a region other than the photoelectric conversion surface of the image sensor; a main cylinder that includes at least the cam member and the imaging optical system; and engaging portion that engages with the imaging optical system while being arranged rotatably on the outer surface is a manufacturing method of an image pickup apparatus which have a, a rotating member which is integrally formed,
Placing and fixing the main cylinder at a predetermined position of the printed circuit board ;
Dropping the cam member into the main cylinder and fixing the leg to the main cylinder in a state where the leg is in contact with the imaging element;
A step of incorporating the imaging optical system inside the main cylinder so that the protrusion comes into contact with the cam portion;
Incorporating the rotating member into the outer surface of the main body and engaging the engaging portion with the imaging optical system;
Said main body, said cam member, the imaging optical system, the imaging device manufacturing method wherein the rotating member is characterized by being assembled is placed in the same direction.

Images