Filter glass holding device, camera device having filter glass holding device, and method for assembling the same
The filter glass holding device with a rubber component and housing chamber simplifies assembly by securely holding the filter glass, reducing operator stress and enabling adjustable spacing, thus improving assembly workability and safety in camera devices.
Patent Information
- Application Number
- JP2024006219
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-07-31
- Estimated Expiration
- 2044-01-18
AI Technical Summary
The operation of disposing a rubber packing between the filter glass and the image sensor in camera devices is cumbersome, especially in miniaturized devices, and increasing the distance between the filter glass and the image sensor restricts miniaturization and lens options.
A filter glass holding device with a rubber component that forms a housing chamber and locking portions to securely hold the filter glass, allowing easy assembly and providing a buffering function, while maintaining a safe distance from the image sensor.
Facilitates easy assembly of the filter glass, reduces operator stress, and allows for adjustable spacing between the filter glass and image sensor, enhancing assembly workability and safety.
Smart Images

Figure 2025112120000001_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present invention relate to a filter glass holding device, a camera device using the filter glass holding device, and an assembly method thereof.
Background Art
[0002] As a type of camera device, there is a type in which a filter glass is disposed between a lens and an image sensor. This type is often used in industrial surveillance camera devices. Since the filter glass is disposed in front of the image sensor, a spacer such as a rubber packing is disposed between the filter glass and the image sensor.
[0003] This is for the purpose of preventing the filter glass from contacting and damaging the image sensor after product assembly, preventing an excessive load from being applied to the image sensor, and preventing dust from entering from the outside (dustproof).
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0005] Conventionally, the operation of disposing a rubber packing between the filter glass and the image sensor has been an extremely careful operation and requires time. When the camera device is miniaturized, there are further difficulties in the operation process. In order to reduce the difficulty of the operation, it is conceivable to increase the distance between the filter glass and the image sensor. However, with this method, there will be restrictions on the miniaturization of the camera and the options for lenses.
[0006] Therefore, in the present embodiment, an object is to provide a filter glass holding device that facilitates the incorporation work of the filter glass and can improve the assembly workability of the camera device, a camera device using the filter glass holding device, and an assembly method thereof.
[0007] Further, in the embodiment, the filter glass is configured to be held in a housing chamber provided in a rubber main body portion. Thus, when assembling the filter glass to the lens mount, the filter glass does not directly touch the operator or other components. Also, after assembly, the filter glass does not directly touch the lens mount. Furthermore, even during the attachment work of attaching the image sensor or the sensor board to the lens mount and during vibration after attachment, the rubber main body portion can exert a buffering function on the image sensor or the sensor board. An object is to provide a camera device using a filter glass holding device that can have safety in many aspects and an assembly method thereof.
Means for Solving the Problems
[0008] According to one embodiment, there is provided a rubber component for buffering a filter glass, the main body of the rubber component forms a housing chamber having an opening on the rear side and a wall on the front side in the front-rear direction in the axial direction orthogonal to the filter glass. Further, a window is formed in the wall, a plurality of locking portions protruding inward are formed inside the main body forming the opening, a flange portion extending in a direction spreading outward and having a height is formed outside the opening of the main body, There is provided a filter glass holding device having a structure in which when the filter glass is inserted into the housing chamber from the rear side, the filter glass is held in the housing chamber by the locking portions.
[0009] Also, according to another embodiment, the hollow-type lens mount is, It has an attachment portion having a first window in the middle in the front-rear direction of the axis of the lens mount, and the main body of the rubber component is configured to be attachable to the attachment portion from the rear side. The main body of the rubber component has an opening on the rear side and forms a housing chamber having a wall on the front side. Further, a second window corresponding to the first window is formed in the wall. A locking portion protruding inward is formed inside the main body having the opening. On the outside of the opening of the main body, a flange portion extending in a direction spreading outward and having a height is formed. When a filter glass is inserted into the housing chamber from the rear side, a filter glass holding device is provided, which has a structure for holding the filter glass in the housing chamber by the locking portion.
[0010] Further, according to another embodiment, the hollow lens mount has a partition wall having a thickness in the middle in the front-rear direction inside and a first window formed in the partition wall. The main body of the rubber component is configured to be attachable to the first window from the rear side. The main body of the rubber component has an opening on the rear side and forms a housing chamber having a wall on the front side. Further, a second window corresponding to the first window is formed in the wall. A locking portion protruding inward is formed inside the main body having the opening. On the outside of the opening of the main body, a flange portion extending in a direction spreading outward and having a height is formed. When a filter glass is inserted into the housing chamber from the rear side, a filter glass holding device is provided, which has a structure for holding the filter glass in the housing chamber by the locking portion.
Brief Description of the Drawings
[0011]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
DETAILED DESCRIPTION OF THE INVENTION
[0012] Hereinafter, embodiments will be described with reference to the drawings. With reference to FIGS. 1 to 4, a lens mount 100, a dust-proof rubber part 300, a filter glass 200, a sensor board 400, etc. of the camera device will be described. Note that the dust-proof rubber part may also be referred to as a dust-proof rubber box.
[0013] FIG. 1 is a perspective view of a lens mount 100, a dust-proof rubber part 300, a filter glass 200, and a sensor substrate 400 of a camera device as viewed from the rear side. FIG. 2 is a perspective view of the lens mount 100, the dust-proof rubber part 300, the filter glass 200, and the sensor substrate 400 of the camera device as viewed from the front side. In FIG. 2, a state where an image sensor 500 is mounted on the sensor substrate 400 can be seen. In the image sensor 500 of FIG. 2, the portion denoted by reference numeral 510 is an imaging element (semiconductor pixel array portion), and the portion denoted by reference numeral 520 is a semiconductor holding frame. FIG. 3 is a perspective view (FIG. 3(a)) of the dust-proof rubber part 300 as viewed from the front side, a front view (FIG. 3(b)) as viewed from the front, and a cross-sectional view (FIG. 3(c)) of the dust-proof rubber part in the front view taken along line B-B.
[0014] Furthermore, FIG. 4 is a cross-sectional view of a main part after the camera device is assembled.
[0015] FIG. 1 is a perspective view of the lens mount 100, the dust-proof rubber part 300, the filter glass 200, and the sensor substrate 400 of the camera device before assembly as viewed from the rear side. <Description of the lens mount 100> The lens mount 100 is of a hollow type and has a partition with a thickness in the middle in the front-rear direction inside. Specifically, the lens mount 100 includes a cylindrical case 110 coaxial with the optical axis on the front side in the optical axis direction. At the rear end of this cylindrical case 110, a partition 121 (which may also be referred to as a bottom, floor, wall, or attachment part 121) is integrated with a square cylindrical case 120. The partition 121 has a thickness, and for example, a rectangular or circular window 130 is formed in this partition 121. The front view expands from this window 130 through the cylindrical case 100. The rear end of the square cylindrical case 120 is open in a square shape.
[0016] The partition 121 has a thickness, and the edge of the window 130 is formed in a stepped shape in the thickness direction of the partition 121. The steps are formed such that the outer (front side) opening of the window 130 is narrow and the inner (rear side) opening is wide. That is, it has steps 131 and 132, and there is a step between these steps 131 and 132.
[0017] Here, in this staircase, a so-called tapered portion 133 with an inclined step is formed at the step portion. This tapered portion 133 is an important element in this device and will be described with reference to FIG. 4. <Dust-proof rubber part (may also be referred to as a rubber part)> The dust-proof rubber part 300 has a rectangular tube-shaped main body 310 and a flange portion 320 integrated with the rear end portion of the rectangular tube-shaped main body 310. The rectangular tube-shaped main body 310 has a floor on the front side and is open on the rear side. The flange portion 320 is integrated around this opening.
[0018] The floor of the rectangular tube-shaped main body 310 has a rectangular window corresponding to the window 130. And the dust-proof rubber part 300 forms a filter glass housing chamber 301. The internal space of this filter glass housing chamber 301 is formed to fit the outer shape of the filter glass 200. Further, when the filter glass 200 is housed in the filter glass housing chamber 301, locking portions (which may be referred to as claws in this example) 321, 322, 323, 324 for preventing the filter glass 200 from falling off protrude inside the opening (see also (c) of FIG. 3). The locking portions 321, 322, 323, 324 have outer surfaces inclined toward the housing chamber so that the filter glass 200 can be easily inserted into the filter glass housing chamber 301. Note that the shape and the formed position of the locking portions 321, 322, 323, 324 are not limited to the illustrated example, and various modifications are possible. As long as it protrudes or is recessed inside the opening of the main body 310 and engages with a part or the whole around the filter glass 200 to lock and hold the filter glass 200 in the housing chamber 301, it is acceptable.
[0019] Since the filter glass 200 is held by this filter glass housing chamber 301, when assembling the camera device, the operation of fitting the dust-proof rubber part 300 into the window 130 portion becomes extremely easy and convenient. That is, there is no need to worry about the positioning of the filter glass 200 or its falling off, and the stress on the operator is greatly reduced.
[0020] Next, in the dust-proof rubber component 300, ribs 331, 332, 333, 334, 335, 336, 337, 338 (see also FIGS. 3(a) and 3(b)) are formed at multiple locations on the outer surface of the rectangular tube-shaped main body 310 and at the corners formed by the flange portion 320. In the example of the figure, two ribs are formed on each of the four sides. These ribs are in the shape of wedges. When the dust-proof rubber component 300 is pushed into the window 130 of the rectangular tube-shaped case 120 of the lens mount 100, the ribs are designed to be pressed against the tapered portion 133 of the window 130.
[0021] The rib 331 has a first side along the height-direction surface of the flange portion 320, a second side facing the front side with respect to the outer surface of the accommodation chamber 301, and a third side that is inclined from the height side of the flange portion 320 toward the front side of the second side. Such ribs 331 to 338 are provided at multiple locations. Note that the tips of the ribs do not reach (are not up to) the front-side end of the outer surface of the accommodation chamber 301 in this example. When triangular ribs 331 - 338 are provided, the flange portion 320 may be omitted depending on the thickness or hardness of the ribs.
[0022] FIG. 4 is a cross-sectional view after the assembly of the camera device, showing a state where the ribs 332 and 335 are pressed against the tapered portion 133 of the window 130.
[0023] When the dust-proof rubber component 300 is mounted on the window 130 of the lens mount 100, the ribs 331, 332, 333, 334, 335, 336, 337, 338 can exhibit a buffering function. This means that there is more room for choosing the material of the dust-proof rubber component 300. Conventionally, in order to provide a buffering function between the image sensor and the filter glass, a ring-shaped packing that is as soft as possible has been used for the dust-proof rubber, and there has been little room for choosing the material. For this reason, handling has been inconvenient. In contrast, since the axial buffering function of the dust-proof rubber component 300 is exerted by the ribs, a material with a hardness that is convenient for holding the filter glass 200 and handling during the assembly work can be applied to this dust-proof rubber component 300 as a whole.
[0024] The outer peripheral portion of the sensor substrate 400 has a plurality of holes, into which screws 701 and 702 are inserted, and the tips of these screws 701 and 702 are screwed onto the end face of the lens mount 100. In this case, cushion washers (or cushion rings) 601 and 602 having a thickness sufficient to form a gap W are disposed between the sensor substrate 400 and the end face of the lens mount 100, and are compressed according to the degree of tightening of the screws 701 and 702.
[0025] This means that not only can the minute inclination of the image sensor 500 be adjusted by tightening the screws 701 and 702, but also the minute distance between the filter glass 200 and the image sensor 500 can be adjusted.
[0026] Such adjustment is performed, for example, when the assembly of the camera device is completed and in the test stage. When the adjustment is completed, the portions of the screws 701 and 702 are fixed, for example, with an adhesive or the like.
[0027] According to the camera device as described above, the dustproof rubber component 300 has a specific structure. It is a structure that holds the filter glass 200 by the filter glass housing chamber 301. Therefore, when assembling the camera device, the operation of fitting the dustproof rubber component 300 into the window 130 portion becomes extremely easy and convenient. The positioning of the filter glass 200 and the worry of dropping are eliminated, and the stress on the operator is greatly reduced.
[0028] Furthermore, the dustproof rubber component 300 has ribs 331, 332, 333, 334, 335, 336, 337, and 338 at a plurality of locations at the corners formed by the outer surface of its rectangular tubular main body 310 and the flange portion 320. For this reason, the axial buffering function of the dustproof rubber component 300 is exerted by the ribs. Therefore, a material with a hardness convenient for holding the filter glass 200 and handling during the assembly operation can be applied to this dustproof rubber component 300. That is, the range of selection of the rubber material is widened, which is convenient for the designer.
[0029] Figure 5 shows the state when the dust-proof rubber part 300 is attached to the window 130 of the lens mount 100. At this time, the filter glass 200 has already been attached to the dust-proof rubber part 300. That is, the assembly procedure of the camera device is to attach and integrate the filter glass 200 to the dust-proof rubber part 300, attach the dust-proof rubber part 300 integrated with the filter glass to the window 130 in the lens mount 100, and then attach the sensor substrate 400 integrated with the image sensor 500 to the lens mount 100.
[0030] In Figure 5, the tapered portion 133 of the window 130 was formed over the entire circumference of the stepped portion. However, the tapered portion 133 does not need to be formed over the entire circumference of the stepped portion.
[0031] That is, as shown in Figure 6, for the vertical step between the first step and the second step, tapered portions 341 to 348 (only 343, 344, 345, and 346 are shown in Figure 6) cut into the step may be formed at positions corresponding to the ribs 331, 332, 333, 334, 335, 336, 337, and 338. This type of (cut-in type) tapered portion can also function as a positioning for the dust-proof rubber part 300.
[0032] Also, when manufacturing cameras with different camera models or specific differences in filter glass, the following countermeasures can be obtained. That is, by varying the relationship between the position of the ribs of the dust-proof rubber part 300 and the position of the cut-in type tapered portion according to the model and characteristics, or setting a difference in the number, it is possible to prevent incorrect combinations of assembled parts.
[0033] Figure 7 shows another embodiment of the dust-proof rubber part, and is a diagram showing an example in which a hood 320a is formed around the flange portion 320. This hood 320a extends to the rear sensor substrate 400 and closes the gap W between the sensor substrate 400 and the lens mount 100. Thereby, even if light enters from the outside, it is possible to prevent the light from entering the image sensor 520.
[0034] In the above-described embodiment, there are portions with a rectangular outer shape such as the lens mount and the dust-proof rubber parts, but it is not necessarily limited to a rectangle, and of course, it may be a polygon or a cylindrical shape.
[0035] Some embodiments of the present invention have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope. Furthermore, in each component of the claims, whether the components are expressed separately, or a plurality are combined, or these are combined and expressed, it is within the scope of the present invention. Also, a plurality of embodiments may be combined, and the embodiments constituted by this combination are also within the scope of the invention.
[0036] In addition, for the purpose of making the description clearer, the drawings may schematically represent the width, thickness, shape, etc. of each part compared to the actual aspect. Also, the names and terms used are not limited, and other expressions are also included in the present invention if they have substantially the same content and the same gist.
[0037] Supplementary Note: The above-described embodiment can be grasped as an invention having the following viewpoints. (A1) A rubber part 300 for buffering the filter glass 200, The main body 310 of the rubber part 300 forms a housing chamber 301 having an opening on the rear side and a wall on the front side in the front-rear direction in the axial direction orthogonal to the filter glass. Further, a window is formed in the wall. A plurality of locking portions 321 to 324 protruding inward are formed inside the main body forming the opening. On the outside of the opening of the main body, a flange portion 320 extending in a direction spreading outward and having a height is formed. When the filter glass 200 is inserted into the accommodation chamber from the rear side, there is provided a filter glass holding device having a structure for holding the filter glass 200 in the accommodation chamber by the locking portion. (A2) Triangular ribs are provided at a plurality of locations on the outer surface of the main body, have a first side along the height-direction surface of the flange portion, have a second side facing the front side on the outer surface of the accommodation chamber, and a third side is inclined from the height side of the flange portion toward the front side of the second side. There is provided the filter glass holding device according to A1. (A3) The tips of the plurality of ribs do not reach the front end of the main body 310. There is provided the filter glass holding device according to A2. (A4) The hollow-type lens mount 100 has a mounting portion 130 having a first window in the middle of the front-rear direction of the axis of the lens mount 100, and the main body 310 of the rubber component 300 is configured to be attachable to the mounting portion 130 from the rear side. The main body 310 of the rubber component 300 has an opening on the rear side and forms an accommodation chamber 301 having a wall on the front side. Further, a second window corresponding to the first window is formed in the wall. Locking portions 322 and 323 protruding inward are formed inside the main body 310 having the opening. A flange portion 320 extending in a direction widening outward and having a height is formed outside the opening of the main body. When the filter glass 200 is inserted into the accommodation chamber from the rear side, there is provided a filter glass holding device or a camera device having a structure for holding the filter glass 200 in the accommodation chamber by the locking portion. (A5) Triangular ribs are provided at a plurality of locations on the outer surface of the main body, have a first side along the height-direction surface of the flange portion, have a second side facing the front side on the outer surface of the accommodation chamber, and a third side is inclined from the height side of the flange portion toward the front side of the second side. There is provided the filter glass holding device or the camera device according to A4. (A6) The tips of the plurality of ribs do not reach the front end of the main body 310, and there is provided a filter glass holding device or a camera device according to A4 or A5. (A7) An image sensor 500 attached to the front side of a sensor substrate 400 is pressed against the rear surface of the flange portion 320 of the rubber component 300, and there is provided a filter glass holding device or a camera device according to A4 or A5 or A6. (A8) A part of the front plane of the sensor substrate 400 is arranged with a gap w with respect to the rear end face of the attachment portion 121 of the lens mount 100, and there is provided a filter glass holding device or a camera device according to A4 or A5 or A6 or A7. (A9) A plurality of holes are formed in the sensor substrate 400. At the portions of the plurality of holes, cushion washers 601, 602 are arranged in the gap w, and screws 701, 702 penetrate through the holes and the cushion washers 601, 602, and the screws are screwed into the rear end face of the attachment portion 121 of the lens mount. There is provided a camera device according to A4 or A5 or A6 or A7 or A8 using the filter glass holding device according to claim 8. (A10) A rubber component 300 for buffering the filter glass 200, The main body 310 of the rubber component 300 forms a housing chamber 301 having an opening on the rear side and a wall on the front side in the front-rear direction in the axial direction orthogonal to the above, and further, a window is formed in the wall. An engaging portion for engaging around the filter glass is formed inside the main body having the opening. Outside the opening of the main body, a flange portion 320 extending in a direction widening outward and having a height is formed. When the filter glass 200 is inserted into the housing chamber from the rear side, there is provided a filter glass holding device having a structure for holding the filter glass 200 in the housing chamber by the engaging portion. (A11) A rubber component 300 for buffering the filter glass 200, The main body 310 of the rubber component 300 forms an accommodation chamber 301 that has an opening on the rear side and a wall on the front side in the front-rear direction of the axial direction orthogonal to the above, and further, a window is formed in the wall. On the inner side of the main body that forms the opening, a locking portion for locking around the filter glass is formed. On the outside of the opening of the main body, a plurality of triangular ribs are formed, each having a first side that rises in a direction extending outward, a second side that is integral with the main body and extends in the front side, and a third side that connects the end of the second side in the extending direction and the upper end of the first side. Provided is a filter glass holding device having a structure in which when the filter glass 200 is inserted into the accommodation chamber from the rear side, the filter glass 200 is held in the accommodation chamber by the locking portion. (A12) A rubber component 300 for buffering the filter glass 200, The main body 310 of the rubber component 300 forms an accommodation chamber 301 that has an opening on the rear side and a wall on the front side in the front-rear direction of the axial direction orthogonal to the above, and further, a window is formed in the wall. On the inner side of the main body that forms the opening, a locking portion for locking around the filter glass is formed. On the outside of the opening of the main body, a plurality of triangular ribs are formed, each having a first side that rises in a direction extending outward, a second side that is integral with the main body and extends in the front side, and a third side that connects the end of the second side in the extending direction and the upper end of the first side. When the filter glass 200 is inserted into the accommodation chamber from the rear side, the filter glass 200 is held in the accommodation chamber by the locking portion. Provided is a camera device having a structure in which when the rubber component is accommodated in the cavity of the lens mount from the rear side, the plurality of ribs are joined to the mounting portion formed inside the cavity. (B) In a method of assembling a camera device in which a filter glass is assembled to a lens mount having an attachment portion in the middle of the front-rear direction of an internal cavity and a first window is formed in the first attachment portion, and a sensor substrate having an image sensor is disposed behind the filter glass, preparing a rubber part in which a main body has a housing chamber for housing the filter glass, the main body is provided with a second window corresponding to the first window on the front side, the rear side has an opening, and the main body forms a locking portion protruding inward on the inner side of the opening; a step of mounting the filter glass in the housing chamber of the rubber part; a step of inserting and attaching the rubber part with the filter glass mounted thereto into the first window; a step of screwing the sensor substrate to an end surface on the rear side of the lens mount such that the image sensor is attached to a front surface of the sensor substrate and the image sensor is pressed against an end surface on the rear side of the rubber part; A method of assembling a camera device comprising the above is provided.
Explanation of reference numerals
[0038] 100... lens mount, 121... partition, 130... window, 131, 132... steps, 133... tapered portion, 200... filter glass, 300... dustproof rubber part, 301... housing chamber, 310... rectangular tube-shaped main body, 320... flange portion, 331, 332, 333,... 338... ribs, 400... sensor substrate, 500... image sensor, 601, 602... cushion washers, 701, 702... screws.
Claims
1. A rubber component for buffering a filter glass, wherein the main body of the rubber component forms a housing chamber having an opening on the rear side and a wall on the front side in the front-rear direction of the axial direction orthogonal to the filter glass, and further, a window is formed in the wall, a plurality of locking portions protruding inward are formed inside the main body forming the opening, a flange portion extending in a direction spreading outward and having a height is formed outside the opening of the main body, a filter glass holding device having a structure in which when the filter glass is inserted into the housing chamber from the rear side, the filter glass is held in the housing chamber by the locking portion.
2. Triangular ribs are provided at a plurality of locations on the outer surface of the main body, having a first side along the height direction surface of the flange portion, a second side facing the front side on the outer surface of the housing chamber, and a third side inclined from the height side of the flange portion toward the front side of the second side. The filter glass holding device according to Claim 1.
3. The tips of the plurality of ribs do not reach the front end of the main body. The filter glass holding device according to Claim 2.
4. A hollow-type lens mount has a mounting portion having a first window in the middle of the front-rear direction of the axis of the lens mount, and the main body of the rubber component is configured to be attachable to the mounting portion 130 from the rear side, the main body of the rubber component has an opening on the rear side and forms a housing chamber having a wall on the front side, and further, a second window corresponding to the first window is formed in the wall, a locking portion protruding inward is formed inside the main body forming the opening, a flange portion extending in a direction spreading outward and having a height is formed outside the opening of the main body, a camera device having a structure in which when the filter glass is inserted into the housing chamber from the rear side, the filter glass is held in the housing chamber by the locking portion.
5. Triangular ribs are provided at a plurality of locations on the outer surface of the main body, having a first side along the height direction surface of the flange portion, a second side facing the front side on the outer surface of the housing chamber, and a third side inclined from the height side of the flange portion toward the front side of the second side. The camera device according to Claim 4.
6. The camera device according to claim 5, wherein the tips of the plurality of ribs do not reach the front end of the main body.
7. The camera device according to claim 4, wherein an image sensor attached to the front surface side of a sensor substrate is pressed against a rear surface of a flange portion of the rubber component.
8. The camera device according to claim 7, wherein a part of a front plane of the sensor substrate is disposed with a gap with respect to a rear end surface of an attachment portion of the lens mount.
9. A plurality of holes are formed in the sensor substrate, a cushion washer is disposed in the gap at portions of the plurality of holes, a screw passes through the holes and the cushion washer, and the screw is screwed into the rear end surface of the attachment portion of the lens mount. The camera device according to claim 8.
10. In an assembling method of a camera device, a filter glass is assembled to a lens mount having an attachment portion in the middle in the front-rear direction of an internal cavity and having a first window formed in the first attachment portion, and a sensor substrate having an image sensor is disposed behind the filter glass. A step of preparing a rubber component in which the main body has a housing chamber for housing the filter glass, the main body is provided with a second window corresponding to the first window on the front side, the rear side has an opening, and the main body forms a locking portion protruding inward on the inner side of the opening. A step of mounting the filter glass in the housing chamber of the rubber component. A step of inserting and attaching the rubber component with the filter glass attached thereto into the first window. A step of screwing the sensor substrate to the rear end surface of the lens mount such that the image sensor is attached to the front surface side of the sensor substrate and the image sensor is pressed against the rear end surface of the rubber component. An assembling method of a camera device comprising the above steps.
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