JP2022185553A - Imaging apparatus, shield, and method for manufacturing imaging apparatus - Google Patents

Abstract

To provide an imaging apparatus capable of improving noise resistance performance, a shield, and a method for manufacturing the imaging apparatus.SOLUTION: The imaging apparatus includes a lens unit, a substrate, a housing, and a shield. The lens unit includes a lens barrel in which a lens is arranged. An imaging element which is arranged on the emission side of light from the lens barrel and receives the light is mounted on the substrate. The housing stores the lens unit and the substrate. The shield is provided to face a first surface on which the imaging element is mounted among surfaces possessed by the substrate, in the housing.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to imaging devices, shields, and methods of manufacturing imaging devices.

As sensors become more sophisticated, imaging devices such as in-vehicle cameras are required to have both noise resistance and heat dissipation properties. 2. Description of the Related Art From the viewpoint of noise resistance characteristics of an image pickup device, a shield is arranged inside a camera case, which is an example of a resin-made housing, in the image pickup device. For example, Japanese Patent Application Laid-Open No. 2002-200001 discloses a technique of covering the side and bottom surfaces of a substrate of an imaging device with a shield.

Japanese Patent No. 6234572

However, in the technology described in Patent Document 1, since the lens is arranged directly above the sensor, the side and bottom surfaces of the substrate in the imaging device can be covered with the shield, but the top surface of the substrate is covered with the shield. It is difficult to suppress noise from the upper surface side of the substrate.

The present disclosure provides an imaging device, a shield, and a method for manufacturing the imaging device that can improve noise resistance performance.

An imaging device according to the present disclosure includes a lens unit, a substrate, a housing, and a shield. The lens unit includes a lens barrel in which lenses are arranged. The substrate is arranged on the side from which light is emitted from the lens barrel, and is mounted with an imaging device that receives the light. The housing accommodates the lens unit and the substrate. The shield is provided inside the housing so as to face the first surface on which the imaging element is mounted, among the surfaces of the substrate.

According to the imaging device, the shield, and the manufacturing method of the imaging device according to the present disclosure, it is possible to improve the noise resistance performance of the imaging device.

FIG. 1 is an exploded view of an in-vehicle camera that is an example of an imaging device according to a first embodiment. FIG. 2 is a schematic vertical cross-sectional view of the vehicle-mounted camera according to the first embodiment. FIG. 3 is a schematic vertical cross-sectional view of the vehicle-mounted camera according to the first embodiment. FIG. 4 is a perspective cross-sectional view of the vehicle-mounted camera according to the first embodiment. FIG. 5 is a flow chart showing an example of the flow of the vehicle-mounted camera manufacturing method according to the first embodiment. FIG. 6 is a schematic vertical cross-sectional view for explaining an example of the manufacturing method of the vehicle-mounted camera according to the second embodiment. FIG. 7 is a perspective cross-sectional view of the vehicle-mounted camera according to the third embodiment. FIG. 8 is a perspective cross-sectional view of the vehicle-mounted camera according to the third embodiment. FIG. 9 is a perspective view of a camera case included in the vehicle-mounted camera according to the third embodiment. FIG. 10 is a diagram for explaining an example of a welding structure of a lens substrate ASSY, a camera case, and a welding ring in a conventional vehicle-mounted camera. FIG. 11 is a diagram for explaining an example of the welding structure of the lens substrate ASSY, the camera case, and the welding ring in the vehicle-mounted camera according to the third embodiment.

Hereinafter, embodiments of an imaging device, a shield, and a method for manufacturing an imaging device according to the present disclosure will be described with reference to the drawings.

(First embodiment)
First, with reference to FIGS. 1 to 4, an example of the configuration of an imaging device according to this embodiment will be described. FIG. 1 is an exploded view of an in-vehicle camera that is an example of an imaging device according to a first embodiment. FIG. 2 is a schematic vertical cross-sectional view of the vehicle-mounted camera according to the first embodiment. FIG. 3 is a schematic vertical cross-sectional view of the vehicle-mounted camera according to the first embodiment. FIG. 4 is a perspective cross-sectional view of the vehicle-mounted camera according to the first embodiment.

A vehicle-mounted camera 10, which is an example of an imaging device according to the present embodiment, includes a lens substrate ASSY 1, a camera case 3, a heat dissipation member 4, a shield 5, and a substrate 6, as shown in FIGS. .

The lens substrate ASSY1 is an example of a lens unit having a lens barrel 11 and a lens 12. As shown in FIG. The lens barrel 11 has a lens 12 arranged therein. The lens barrel 11 may be formed using a resin material, for example.

In this embodiment, the lens substrate ASSY1 has a cover 13 that covers the lens barrel 11. As shown in FIG. The cover 13 may be formed using a resin material. In this embodiment, the entire cover 13 is made of a resin material. It is sufficient if it is made of any material.

A substrate 6 is attached to the lens substrate ASSY 1 with an adhesive 2 . In this embodiment, as the adhesive 2, it is possible to use an adhesive that has the property of being cured at least by heat treatment. The adhesive 2 is used to attach the substrate 6 to the lens substrate ASSY 1 with higher precision, in other words, for optical adjustment between the lens barrel 11 (lens 12) and the image sensor 7, prior to the main curing by heat treatment. For example, it preferably has the property of being temporarily cured by ultraviolet (UV) irradiation.

Therefore, in the present embodiment, it is preferable that the adhesive 2 be cured through a two-stage process of temporary curing by UV irradiation and final curing by heat treatment. For example, the adhesive 2 may be an adhesive containing epoxy resin. As a result, it is possible to prevent the positional relationship between the lens barrel 11 and the imaging device 7 from being deviated after the temporary curing and before the final curing.

The substrate 6 is an example of a substrate that is arranged on the light emitting side from the lens barrel 11 and on which the imaging element 7 is mounted. The imaging element 7 is, for example, a CMOS (Complementary MOS) or a CCD (Charge Coupled Device), and is an example of an imaging element that receives light that has passed through the lens 12 . The imaging device 7 also converts the received light into a video signal. In this embodiment, the corners of the substrate 6 are fixed to the lens substrate ASSY 1 via the adhesive 2 .

The camera case 3 is an example of a housing that accommodates the lens substrate ASSY1 and the substrate 6 inside. In this embodiment, the camera case 3 has an opening 34 . Here, the opening 34 is an example of an opening that allows the substrate 6 to be inserted into the camera case 3 and that is closed by the lens substrate ASSY1.

In this embodiment, the camera case 3 is a box-shaped housing with an open top. Specifically, the camera case 3 has an end wall 31 and a peripheral wall 32 . The end wall 31 is formed in a substantially rectangular plate shape substantially perpendicular to the optical axis of the lens 12 . The peripheral wall 32 is formed in a rectangular box shape substantially parallel to the optical axis of the lens 12 . The camera case 3 also has a contact surface 33 that contacts the lens substrate ASSY 1 when the substrate 6 is accommodated in the camera case 3 .

A shield 5 is provided within the camera case 3 . The shield 5 has a substrate 6 housed therein. Shield 5 is an example of a shield that covers substrate 6 . In other words, the shield 5 is provided facing the upper surface 6a, the side portions 6c, and the lower surface 6b of the substrate 6. As shown in FIG. Specifically, the shield 5 has a plurality of shield portions 5a to 5e. The shield part 5e is provided to face a lower surface 6b, which is an example of a second surface, on the side opposite to an upper surface 6a, which is an example of a first surface on which the imaging element 7 is mounted, among the surfaces of the substrate 6. FIG. The shield portions 5a to 5d are erected from the shield portion 5e and provided to face the side portion 6c and the upper surface 6a of the substrate 6. As shown in FIG.

In the present embodiment, the shield parts 5a to 5d extend in a direction orthogonal to the upper surface 6a of the substrate 6, in other words, the x direction, which is an example of a first direction orthogonal to the surface of the substrate 6. FIG. The shield portions 5a to 5d are provided so as to obliquely extend from the side portion 6c, which is the side edge of the substrate 6, toward a position facing the upper surface 6a. That is, in a state in which the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield portions 5a to 5d obliquely extend from the side portion 6c toward the optical axis of the lens substrate ASSY1 (lens 12). be provided. Furthermore, the length in the x direction of the shield portions 5a to 5d is longer than the inner dimension L of the camera case 3 covering the side portion 6c of the substrate 6 in the x direction.

In addition, in the present embodiment, the shield part 5c and the shield part 5d are an example of a first shield pair, which is a plate-shaped member arranged to face each other. Also, the shield part 5a and the shield part 5b are an example of a second shield pair, which is a plate-like member arranged to face each other. The shield portions 5a and 5b are preferably inclined toward the inside of the camera case 3 with respect to the shield portions 5c and 5d. Also, the ends of the shield portions 5a and 5b are partially overlapped with the shield portions 5c and 5d.

When the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield portions 5c and 5d are pushed by the cover 13 of the lens substrate ASSY1 and are pushed inside the camera case 3 before the shield portions 5a and 5b. incline towards. The shield portions 5a and 5b are tilted toward the inside of the camera case 3 as the shield portions 5c and 5d are tilted and the overlapping portions are pushed. In other words, the shield portions 5c and 5d are inclined toward the inside of the camera case 3 with a time difference from the shield portions 5a and 5b. As a result, when the shield portions 5a to 5d are tilted toward the inside of the camera case 3 along the lens substrate ASSY1, the shield portions 5a to 5d are tilted toward the inside of the camera case 3 without contacting the adjacent shield portions. can be made easier to bend.

In this embodiment, as shown in FIG. 3, the upper end 5i of the shield 5 in the x direction is subjected to hemming such as bending into a U shape. Thereby, when housing the lens substrate ASSY1 and the substrate 6 in the camera case 3, the friction between the upper end 5i of the shield 5 and the cover 13 of the lens substrate ASSY1 can be reduced. As a result, it is possible to prevent the upper end 5i of the shield 5 from being caught by the cover 13 and unable to move inside the camera case 3, thereby preventing the upper surface 6a of the substrate 6 from being covered by the shield 5. - 特許庁Further, as a result, it is possible to prevent the upper end 5i of the shield 5 from being caught on the board 6 when the board 6 is accommodated in the camera case 3, so that the board 6 is prevented from being damaged by the shield 5 being caught by the board 6. can be prevented.

Moreover, it is preferable that the contact portion of the lens substrate ASSY1 that contacts the upper end 5i of the shield 5 is made of a resin material. In this embodiment, the cover 13 of the lens substrate ASSY1 is made of a resin material. Thereby, when housing the substrate 6 in the camera case 3, the friction between the upper end 5i of the shield 5 and the cover 13 of the lens substrate ASSY1 can be further reduced. In this embodiment, the entire cover 13 is made of a resin material, but at least the portion of the cover 13 that contacts the upper end 5i of the shield 5 may be made of a resin material.

The shield 5 also has cutouts or holes 5f, 5g at the location of the substrate 6 in the x-direction. As a result, when the shield portions 5a to 5d are tilted toward the inside of the camera case 3 along the lens substrate ASSY1, stress is concentrated on the holes 5f and 5g, and the position of the substrate 6 of the shield 5 is shifted by the shield 5. It can be used as a turning point. As a result, when the shield portions 5a to 5d are tilted toward the inside of the camera case 3 along the lens substrate ASSY1, only the upper portion of the shield 5 is bent, preventing the shield 5 from covering the upper surface 6a of the substrate 6. can.

As shown in FIG. 3, when the vehicle-mounted camera 10 is manufactured or assembled, more specifically, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield portions 5a to 5d are mounted on the lens substrate ASSY1. inclines toward the inside of the camera case 3 along. Specifically, the shield portions 5c and 5d are configured such that the upper end 5i, which is an example of the first end on the upper surface 6a side of the substrate 6, is brought into contact with the cover 13 of the lens substrate ASSY 1, and the shield portions 5c and 5d are mounted inside the camera case 3 along the cover 13. incline towards. The shield portions 5a and 5b are tilted toward the inside of the camera case 3 as the shield portions 5c and 5d are tilted and the overlapping portions are pushed. In the present embodiment, the shield portions 5a to 5d are inclined toward the inside of the camera case 3 until the cover 13 of the lens substrate ASSY1 contacts the contact surface 33 of the camera case 3 when manufacturing or assembling the vehicle-mounted camera 10. Let

As a result, the upper end 5i of the shield portions 5a to 5d moves inside the camera case 3, and the shield 5 is provided at a position facing the upper surface 6a of the substrate 6, so that the upper surface 6a of the substrate 6 is covered with the shield 5. can be done. As a result, the noise to the board 6 from the upper surface 6a side of the board 6 is reduced, and the noise resistance performance of the vehicle-mounted camera 10 can be improved. In addition, since the shield portions 5a to 5d are inclined toward the inside of the camera case 3 in advance, when the upper end 5i of the shield portions 5a to 5d is inclined along the lens substrate ASSY1, the lens substrate ASSY1 is lowered. The shield portions 5a to 5d can be bent toward the inside of the camera case 3 by the load.

By the way, it is also possible to insert-mold the shield 5 into the camera case 3 by vapor-depositing metal on the inside of the camera case 3 including the lid side of the camera case 3 (that is, the lens substrate ASSY1). However, the technique of insert-molding the thin shield 5 into the camera case 3 is difficult, and there is a concern that the cost will be high.

On the other hand, according to the shield 5 according to the present embodiment, the upper surface 6a of the substrate 6 and the lens substrate ASSY1 can be mounted without changing the members constituting the conventional vehicle-mounted camera and without using a special method such as insert molding. The periphery of the substrate 6 including between and can be covered with the shield 5 . As a result, the heat radiation performance and noise resistance performance of the substrate 6 can be improved easily and at low cost.

In this embodiment, as shown in FIG. 4, the holes of the shield 5 extend from the space between the shield 5 and the substrate 6 to the space between the shield 5 and the camera case 3 in addition to the holes 5f and 5g. and a penetrating hole (opening) 5h.

Here, the hole 5f is a circular hole provided in the center of each of the shield parts 5a to 5d in the y and z directions orthogonal to the x direction. The holes 5g are elliptical holes provided at the ends in the y and z directions of each of the shield parts 5a to 5d. The hole 5h is provided at the end opposite to the upper end 5i of the shield portions 5a to 5d in the x direction. In this embodiment, the holes 5h are provided at the ends in the y and z directions of each of the shield portions 5a to 5d. Also, in the present embodiment, the holes 5f, 5g, and 5h are circular holes. For example, square holes may be used.

A heat dissipation member 4 is provided in a space between the shield 5 and the substrate 6 . 4, when the lens substrate ASSY 1 and the substrate 6 are inserted into the camera case 3, the substrate 6 causes the shield 5 and the camera case to be separated from each other through the holes 5f, 5g, and 5h. 3 is extruded. As a result, the heat generated in the substrate 6 can be efficiently dissipated to the camera case 3, so that the heat dissipation performance of the in-vehicle camera 10 can be improved.

Here, the heat dissipation member 4 is a resin material that hardens over time. For example, the heat dissipation member 4 may be silicone. Alternatively, the heat dissipating member 4 may be a heat dissipating member having, for example, a base material of silicone, a filler of aluminum hydroxide or aluminum oxide, and a thermal conductivity of 3 W/m·K. Alternatively, the heat dissipating member 4 may be a heat dissipating member having a base material of silicone, a filler of aluminum oxide, and a thermal conductivity of 5 W/m·K.

The heat dissipation member 4 is poured into the gap between the shield 5 and the substrate 6. As shown in FIG. When inserting the lens substrate ASSY 1 and the substrate 6 into the camera case 3, the substrate 6 is poured into the gap between the shield 5 and the camera case 3 through the holes 5f, 5g and 5h. As a result, the board 6, the shield 5, and the camera case 3 are connected by the heat dissipation member 4, and the heat generated in the board 6 can be efficiently dissipated to the camera case 3, so that the heat dissipation performance of the vehicle-mounted camera 10 can be improved. can be improved.

Furthermore, when the lens substrate ASSY 1 and the substrate 6 are housed in the camera case 3, the heat radiation member 4 is not completely hardened, so that the substrate 6 housed in the camera case 3 can move the hole 5f. , 5g and 6h into the gap between the shield 5 and the camera case 3. As shown in FIG. Thereby, the gap between the substrate 6, the shield 5 and the camera case 3 can be reliably filled with the heat radiating member 4. - 特許庁As a result, heat generated in the substrate 6 can be efficiently radiated to the camera case 3 .

Next, an example of the flow of the method for manufacturing the vehicle-mounted camera 10 according to the present embodiment will be described with reference to FIG. FIG. 5 is a flow chart showing an example of the flow of the vehicle-mounted camera manufacturing method according to the first embodiment.

In this embodiment, first, the lens substrate ASSY 1 and the substrate 6 are inserted into the camera case 3 . At this time, the upper ends 5i of the shield portions 5a to 5d come into contact with the lens substrate ASSY1, and the shield portions 5a to 5d incline toward the inside of the camera case 3 along the lens substrate ASSY1 (step S601). As a result, the shield portions 5a to 5d can be provided facing the upper surface 6a of the substrate 6. As shown in FIG.

When the heat dissipation member 4 is poured into the gap between the shield parts 5a to 5e and the board 6, the board 6 is placed between the shield parts 5a to 5e and the board 6 through the holes 5f, 5g, and 5h. The heat radiating member 4 in the gap is poured into the gap between the shield parts 5a to 5e and the camera case 3 (step S602). As a result, the board 6, the shield 5, and the camera case 3 are connected by the heat dissipation member 4, and the heat generated in the board 6 can be efficiently dissipated to the camera case 3, so that the heat dissipation performance of the vehicle-mounted camera 10 can be improved. improve.

As described above, according to the vehicle-mounted camera 10 according to the first embodiment, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield portions 5a to 5d are placed inside the camera case 3 along the lens substrate ASSY1. A shield 5 can be provided facing the upper surface 6a of the substrate 6, slanted toward the substrate. As a result, the noise to the board 6 from the upper surface 6a side of the board 6 is reduced, and the noise resistance performance of the vehicle-mounted camera 10 can be improved.

(Second embodiment)
In this embodiment, after the upper surface of the substrate is covered by the shield, the lens substrate ASSY suppresses the inclination of the shield toward the inside of the camera case. is an example with In the following description, description of the same configuration as in the first embodiment will be omitted.

An example of a method for manufacturing the vehicle-mounted camera 10 according to this embodiment will be described with reference to FIG. FIG. 6 is a schematic vertical cross-sectional view for explaining an example of the method for manufacturing the vehicle-mounted camera according to the second embodiment.

In this embodiment, before the substrate 6 is inserted into the camera case 3, the shield 5 is in a state of being opened outside the substrate 6 in the y and z directions.

After that, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the cover 13 of the lens substrate ASSY1 and the upper end 5i of the shield 5 come into contact with each other, and the upper end 5i of the shield 5 is pushed into the camera case 3. . As a result, the shield portions 5a to 5d fall inside the camera case 3 and are disposed facing the upper surface 6a of the substrate 6. As shown in FIG.

Also, the cover 13 of the lens substrate ASSY1 has a stopper 14 . The stopper 14 prevents the inclination of the shield 5 toward the inside of the camera case 3 after the shield 5 is arranged to face the upper surface 6a of the substrate 6, in other words, after the upper surface 6a is covered with the shield portions 5a to 5d. It is an example of a stopper that restrains and pushes the position of the substrate 6 of the shield 5 in the x direction to the outside of the camera case 3 .

As a result, according to the vehicle-mounted camera 10 according to the second embodiment, after the upper surface 6a is covered with the shield portions 5a to 5d, the movement of the upper end 5i of the shield 5 is stopped by the stopper 14. The substrate 6 is pushed outside the camera case 3 . As a result, the gap between the shield 5 and the camera case 3 becomes smaller, and the heat generated in the substrate 6 can be efficiently dissipated to the camera case 3, so that the heat dissipation performance of the in-vehicle camera 10 can be improved. can.

(Third Embodiment)
This embodiment is an example in which the lens substrate ASSY is accommodated in the camera case in a state in which the cover of the lens substrate ASSY and the welding ring that is welded to the camera case are separated from the lens substrate ASSY. In the following description, descriptions of the same configurations as in the above-described embodiment are omitted.

An example of the configuration of the vehicle-mounted camera 10 according to the present embodiment will be described with reference to FIGS. 7 to 9. FIG. 7 and 8 are perspective cross-sectional views of the vehicle-mounted camera according to the third embodiment. FIG. 9 is a perspective view of a camera case included in the vehicle-mounted camera according to the third embodiment.

In the first and second embodiments, the example in which the lens substrate ASSY1 and the welding ring 701 are pre-welded before the lens substrate ASSY1 and the substrate 6 are housed in the camera case 3 has been described. That is, in the first and second embodiments, the welding ring 701 is previously welded to the cover 702 provided around the lens barrel 11 of the lens substrate ASSY1. On the other hand, in this embodiment, the cover 702 of the lens substrate ASSY1 and the welding ring 701 are separated, and after the lens substrate ASSY1 and the substrate 6 are accommodated in the camera case 3, the camera case 3 and the lens substrate are separated. This is an example in which ASSY1 is welded with a welding ring 701. FIG.

In this embodiment, the camera case 3 is a rectangular box-shaped housing having an opening on the upper surface 6a side of the substrate 6, as in the first and second embodiments. The lens substrate ASSY 1 has a cover 702 that is at least partially housed in the camera case 3 and closes the opening 34 . The welding ring 701 is an example of a welding member that is provided outside the camera case 3, abuts on the camera case 3 and the cover 702, and welds to the camera case 3 and the cover 702 by laser irradiation.

In this embodiment, as shown in FIG. 9, the camera case 3 has four receiving portions 703 provided at corners inside the camera case 3 and supporting a cover 702 housed inside the camera case 3 . have The receiving portion 703 is made of resin or the like, and is an example of a receiving portion that fixes the position of the lens substrate ASSY 1 in the insertion direction of the lens substrate ASSY 1 into the camera case 3 from the opening 34 . Furthermore, in this embodiment, when housing the lens substrate ASSY 1 and the substrate 6 in the camera case 3, the upper end 5i of the shield 5 is brought into contact with the cover 702, and the central portion (inner side) of the cover 702 is supported by the reaction force of

Conventionally, in a structure in which the lens substrate ASSY1 and the welding ring 701 are separated into two parts, two laser irradiations are required for welding the camera case 3 and the welding ring 701 and welding the lens substrate ASSY1 and the welding ring 701. be. That is, conventionally, prior to housing the lens substrate ASSY1 in the camera case 3, the lens substrate ASSY1 and the welding ring 701 are placed on a jig that is completely fixed, and the lens substrate ASSY1 and the welding ring 701 are mounted by external equipment. The laser irradiation is performed while pressing the Conventionally, since the receiving portion 703 in the camera case 3 is not provided, the laser irradiation for welding the camera case 3 and the welding ring 701 and for welding the lens substrate ASSY 1 and the welding ring 701 is divided into two times. I had no choice.

On the other hand, in this embodiment, the camera case 3 has four receiving portions 703 for fixing the position of the lens substrate ASSY1 in the insertion direction of the lens substrate ASSY1 into the camera case 3 from the opening 34 . This makes it possible to fix the positional relationship between the lens substrate ASSY 1 and the welding ring 701 in the camera case 3 by means of the receiving portion 703 and the shield 5, as in the case of using a jig. As a result, after housing the lens substrate ASSY1 in the camera case 3, the welding of the lens substrate ASSY1 and the welding ring 701 and the welding of the camera case 3 and the welding ring 701 can be simultaneously performed.

FIG. 10 is a diagram for explaining an example of a welding structure of a lens substrate ASSY, a camera case, and a welding ring in a conventional vehicle-mounted camera. FIG. 11 is a diagram for explaining an example of the welding structure of the lens substrate ASSY, the camera case, and the welding ring in the vehicle-mounted camera according to the third embodiment. Next, an example of the welding structure of the lens substrate ASSY1, the camera case 3, and the welding ring 701 in the vehicle-mounted camera 10 according to the present embodiment will be described with reference to FIGS. 10 and 11. FIG.

As shown in FIG. 10, in the conventional method of manufacturing an on-vehicle camera, prior to housing the lens substrate ASSY1 in the camera case 3, the lens substrate ASSY1 and the welding ring 701 are placed on a jig that is completely fixed, and an external Laser irradiation is performed in a state in which the lens substrate ASSY1 and the welding ring 701 are pressed (RIGID fixed state) by equipment. Next, in the conventional method for manufacturing an on-vehicle camera, the lens substrate ASSY1 and the substrate 6 are housed in the camera case 3 after six-axis adjustment with the welding ring 701 welded to the lens substrate ASSY1. After that, in the conventional method of manufacturing an on-vehicle camera, while the welding ring 701 is pressed by an external force of the camera case 3 (for example, an external force of 200 to 300 N), the welding ring 701 is again irradiated with a laser, The camera case 3 and the welding ring 701 are welded together.

On the other hand, in the manufacturing method of the vehicle-mounted camera 10 according to the present embodiment, the lens substrate ASSY1 and the substrate 6 are housed in the camera case 3 after the 6-axis adjustment is performed only with the lens substrate ASSY1. At this time, the receiving portion 703 fixes the position of the lens substrate ASSY1 in the insertion direction of the lens substrate ASSY1 from the opening 34 into the camera case 3 . After that, in the manufacturing method of the vehicle-mounted camera 10 according to the present embodiment, the welding ring 701 is pressed by an external force (for example, an external force of 200 to 300 N), the welding ring 701 is irradiated with a laser, and the lens substrate is formed. The welding of the cover 702 of ASSY 1 and the welding ring 701 and the welding of the camera case 3 and the welding ring 701 are realized at once.

As described above, according to the vehicle-mounted camera 10 according to the third embodiment, the positions of the lens substrate ASSY 1 and the welding ring 701 are controlled by the receiving portion 703 and the shield 5 in the camera case 3 as in the case of using a jig. You can make a fixed situation of relationship. As a result, after housing the lens substrate ASSY1 in the camera case 3, the welding of the lens substrate ASSY1 and the welding ring 701 and the welding of the camera case 3 and the welding ring 701 can be simultaneously performed.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

1 lens substrate ASSY
2 Adhesive 3 Camera Case 4 Heat Dissipating Member 5 Shield 5f, 5g, 5h Holes 5a, 5b Shield Part 6 Board 7 Imaging Device 10 Vehicle-mounted Camera 11 Lens Tube 12 Lens 13, 702 Cover 33 Contact Surface 34 Opening 701 Welding Ring 703 Receptacle Department

Claims (15)

a lens unit including a lens barrel in which lenses are arranged;
a substrate on which an imaging device for receiving the light is mounted, the substrate being arranged on the side of the light emitted from the lens barrel;
a housing that houses the lens unit and the substrate;
a shield provided in the housing so as to face a first surface on which the imaging element is mounted among surfaces of the substrate;
An imaging device comprising: 2. The imaging device according to claim 1, wherein said shield is provided so as to obliquely extend from a side edge of said substrate toward a position facing said first surface. The shield has a length in a first direction orthogonal to the substrate that is longer than an inner dimension of the housing that covers the side portion of the substrate in the first direction, and the lens unit and the substrate are inserted into the housing. 3. The imaging device according to claim 2, wherein the imaging device inclines toward the inside of the housing along the lens unit when the imaging device is mounted. The shields are composed of a first shield pair, which is a plate-shaped member that is arranged to face each other, and a plate-shaped member that partially overlaps the ends of the first shield pair and is arranged to face each other. and a second shield pair, wherein when the lens unit and the substrate are inserted into the housing, the first shield pair extends toward the inside of the housing with a time lag from the second shield pair. 4. The imaging device of claim 3, wherein the imaging device is tilted. 5. The imaging device according to claim 3, wherein said lens unit has a contact portion with said shield made of a resin material. 6. The imaging device according to any one of claims 3 to 5, wherein the edge of the shield that contacts the lens unit is hemmed. 7. The imaging device according to any one of claims 3 to 6, wherein said shield has a hole at a position of said substrate in said first direction. 8. The imaging device according to claim 7, wherein said holes are provided at the center and end of said shield in a second direction which is the position of said substrate in said first direction and which is orthogonal to said first direction. Further comprising a heat dissipation member provided between the shield and the substrate,
the hole is further provided at a second end of the shield in the first direction opposite to the first end in contact with the lens unit, and
9. The heat dissipating member according to claim 7, wherein when the lens unit and the substrate are inserted into the housing, the substrate pushes the heat radiating member out between the shield and the housing through the hole. imaging device. After the first surface is covered with the shield, the lens unit suppresses the inclination of the shield toward the inside of the housing, and adjusts the position of the substrate of the shield in the first direction to the housing. 10. The imaging device according to any one of claims 3 to 9, further comprising a stopper that pushes out the outside of the . The housing is a rectangular box-shaped housing having an opening on the first surface side,
The lens unit has a cover that is housed in the housing and closes the opening,
a welding member provided outside the housing, in contact with the housing and the cover, and welded to the housing and the cover by laser irradiation;
a receiving portion provided at a corner in the housing, supporting the cover, and fixing the position of the lens unit in the direction of insertion of the lens unit into the housing from the opening;
The imaging device according to any one of claims 3 to 10, further comprising: A surface of the substrate in a housing that accommodates a lens unit that includes a lens barrel in which a lens is arranged and a substrate that is arranged on the light emitting side of the lens barrel and on which an imaging device that receives the light is mounted. A shield provided facing the first surface on which the imaging device is mounted. A lens unit including a lens barrel in which a lens is arranged, a substrate arranged on the light emitting side of the lens barrel and receiving the light and mounted with an imaging device, and a housing for housing the lens unit and the substrate. a body and a length in a first direction orthogonal to the substrate provided facing the side portion of the substrate and a first surface on which the imaging element is mounted among the surfaces of the substrate in the housing; , a method for manufacturing an imaging device having a shield longer than the inner dimension of the housing covering the side portion of the substrate in the first direction, and a heat dissipation member provided between the shield and the substrate,
the shield has holes at the center and end of the position of the substrate in the first direction and at the second end opposite to the first end in contact with the lens unit;
When the lens unit and the substrate are inserted into the housing,
the shield tilting toward the inside of the housing along the lens unit;
a step in which the substrate pushes the heat dissipation member between the shield and the housing through the hole;
A method of manufacturing an imaging device comprising: After the first surface is covered with the shield, a stopper included in the lens unit prevents the shield from tilting toward the inside of the housing, and the position of the substrate of the shield in the first direction is adjusted to: extruding to the outside of the housing;
14. The method of manufacturing an imaging device according to claim 13, further comprising: The housing is a rectangular box-shaped housing having an opening on the first surface side,
The lens unit has a cover that is housed in the housing and closes the opening,
a receiving portion provided at a corner in the housing supports the cover to fix the position of the lens unit in a direction in which the lens unit is inserted into the housing from the opening;
a step of contacting a welding member provided outside the housing with the housing and the cover and welding the housing and the cover by laser irradiation;
15. The method of manufacturing an imaging device according to claim 13 or 14, further comprising:

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