JP2024039986A - Imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of also suppressing the number of components while suppressing entry of light into the device.

SOLUTION: An imaging apparatus includes: an imaging portion; a first cover that has a spherical surface at least partially and protects the imaging portion; a second cover in which the first cover is disposed; at least one light source disposed inside the second cover; and a board mounting the light source. The second cover includes an illumination reflection portion reflecting part of illumination light emitted from the light source and emits it to the outside of the second cover, and the illumination reflection portion projects to the light source side relative to the back of a surface in the outside of the second cover.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to an imaging device.

2. Description of the Related Art Among conventional dome-shaped surveillance camera devices, there is an imaging device that includes a light projecting means and a camera that takes an image of an area illuminated by the light projecting means, and is capable of photographing in a dark place. For example, Patent Document 1 discloses an imaging device in which a lens unit that holds a lens barrel has a reflector that reflects infrared rays emitted from an infrared light emitting member that is a light projecting means.

In addition, Patent Document 2 discloses a dome-type surveillance camera device that prevents light emitted from a light projecting means from entering the dome cover by arranging a lighting device at a position away from the dome cover. ing.

JP2020-122920A Patent No. 4273498

However, when a dome-type surveillance camera device has the configuration of Patent Document 1, the light emitted from the light projecting means may enter the dome cover and be imaged as a ghost. Further, when a reflector is installed in each of the light projecting means of Patent Document 2, there is a problem that the number of parts increases.

In view of these circumstances, it is an object of the present invention to provide an imaging device that can not only prevent light from entering the device but also reduce the number of parts.

In order to achieve the above object, an imaging device according to one aspect of the present invention includes an imaging section, a first cover having at least a spherical surface and protecting the imaging section, and the first cover. a second cover, at least one light source disposed inside the second cover, and a substrate mounting the light source, the second cover transmitting a part of the illumination light emitted from the light source. It is characterized in that it has an illumination reflection part that reflects the light and emits it to the outside of the second cover, and the illumination reflection part protrudes toward the light source side from the back surface of the outside surface of the second cover.

According to the present invention, it is possible to provide an imaging device that can not only prevent light from entering the device but also reduce the number of parts.

1 is a cross-sectional view of an imaging device in an example. It is an exploded perspective view of an imaging device in an example. FIG. 2 is a top view and a partially enlarged view of an imaging device in an example. FIG. 2 is a perspective view of an imaging device in which an illumination light transmitting component in an example is made transparent.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings. In this case, parts having the same functions in the figures are given the same numbers, and repeated explanations thereof will be omitted. The embodiment described below is an example of means for realizing the present invention, and should be modified or changed as appropriate depending on the configuration of the device to which the present invention is applied and various conditions. It is not limited to. Moreover, a part of each embodiment described later may be combined as appropriate.

<Example 1>
The configuration of the imaging device 1 in this embodiment will be described below with reference to FIGS. 1 and 2. FIG. 1 is a sectional view of an imaging device 1 in this embodiment. FIG. 2 is an exploded perspective view of the imaging device 1 in this embodiment.

The exterior (appearance) of the imaging device 1 includes a dome cover 11 , an upper cover (top cover) 10 , an illumination transmission section (illumination window) 12 , and a lower cover 20 . Further, the imaging device 1 of this embodiment includes an imaging unit (imaging section) 30, a pan base 21, a main base 22, a biasing member 23, an electric board 24, a first illumination section 40, and a second illumination section 50. , is configured to include.

The dome cover (first cover) 11 is configured as a protective cover that covers the pan base 21, the imaging unit 30, the front lens cover 34, the rear lens cover 35, etc., and protects them from raindrops, dust, external impacts, etc. The dome cover 11 is transparent, has a substantially hemispherical shape (dome shape), and is made of resin such as PC (polycarbonate) or glass. However, the dome cover 11 does not have to be a complete hemisphere, and may have a partially spherical surface. Alternatively, it may be made of a polyhedron.

The dome cover 11 is attached and fixed to the upper cover 10 so as to cover the pan base 21, the imaging unit 30, the front lens cover 34, the rear lens cover 35, and the like. Note that the dome cover 11 is arranged not at the center but eccentrically with respect to the outer shape of the upper cover 10 of the dome cover 11 projected onto the installation surface. Here, the installation surface refers to a surface on which one surface (substantially flat surface) of the lower cover 20 is attached and fixed when the imaging device 1 is installed on a ceiling, wall, or the like.

The upper cover (second cover) 10 is attached and fixed to the lower cover (third cover) 20. By attaching and fixing the upper cover 10 to the lower cover 20, the exterior of the imaging device 1 in this embodiment can be configured together with the dome cover 11 attached to the upper cover 10 and the illumination transmitting section 12, which will be described later. By attaching and fixing the imaging device 1 to the installation surface in this state, it is possible to suppress raindrops and dust from entering the interior of the imaging device 1. Then, by attaching and fixing the upper cover 10 on which the dome cover 11 is disposed to the lower cover 20, the imaging unit 30, the pan base 21, the main base 22, the biasing member 23, the electric board 24, the first lighting section 40, Each of the second lighting sections 50 can be covered. In this embodiment, the upper cover 10 and the lower cover 20 are each made of resin, but may be made of metal to provide strength. Alternatively, one of the upper cover 10 and the lower cover 20 may be made of resin, and the other may be made of metal.

An illumination transmitting section 12 is attached and fixed to a part of the upper cover 10. The illumination transmitting section 12 is composed of a substantially annular piece that transmits illumination light, and is attached and fixed to the upper cover 10 . The illumination transmission section 12 is made of a material such as glass or resin, for example.

As described above, the illumination transmitting part 12 is constructed as a separate part from the upper cover 10, and is integrated by attaching and fixing each part, but it is preferable to form both as one part by integrally molding resin, for example. Thereby, the upper cover 10 has the illumination transmitting section 12. By configuring the upper cover 10 and the illumination transmission section 12 as a single component, the number of parts of the imaging device 1 can be reduced.

The imaging unit 30 is arranged inside the dome cover 11 and covered by a front lens cover 34 and a rear lens cover 35. The imaging unit 30 includes a lens unit 31, a lens holder 32, and an imaging element substrate 33.

The lens unit 31 has a plurality of lenses and a screw portion, and is attached to the lens holder 32 so that the imaging direction (photographing direction) can be adjusted as shown in FIG. Thereby, the lens unit 31 can be included in the optical system (imaging optical system) of the imaging unit 30 together with the lens holder 32. The lens holder 32 is attached and fixed to the front lens cover 34, so that the lens holder 32 and the lens unit 31 are supported by the front lens cover 34. In this embodiment, the lens holder 32 does not have a lens, but for example, the lens holder 32 may also have a built-in lens to function as part of the optical system.

The image sensor substrate 33 is provided with an image sensor such as a CMOS image sensor, and is fixed to the rear side of the lens holder 32. The imaging light beam from the subject is incident on the image sensor board 33 through the lens unit 31 and lens holder 32, and an electrical signal is output according to the amount of light received by each pixel of the image sensor board 33, thereby creating an electrical image. converted into a signal. The image signal output from the image sensor board 33 is transmitted from the image sensor board 33 to the camera control unit via a signal cable (not shown), and image processing such as adjustment of contrast, brightness, and color is performed in the camera control unit. , image data is created for the user to check on a monitor or the like.

The front lens cover 34 is disposed outside the front periphery of the lens holder 32 as part of the optical system, and covers the portion of the lens holder 32 other than the opening for light incidence to the lens unit 31. Here, the front side represents the subject side in the imaging optical axis X direction, and the rear side represents the imaging surface side in the imaging optical axis X direction. A portion of the front lens cover 34 is formed in a substantially hemispherical shape and is configured to be attachable to the rear lens cover 35. Furthermore, the front lens cover 34 has a rib 34a on the front side that blocks unnecessary light. The rib 34a is formed to protrude a predetermined distance toward the subject, as illustrated in FIG.

The rear lens cover 35 is provided around the rear side of the above-mentioned optical system in the imaging unit 30. The rear lens cover 35 is formed in a substantially hemispherical shape so as to cover the rear side of the lens holder 32, and is configured to be attachable to the front lens cover 34.

The front lens cover 34 and the rear lens cover 35 form a spherical part having at least a part of a spherical shape by being attached in combination with each other. The front lens cover 34 and the rear lens cover 35 are supported in contact with the lower cover contact portion 20a, which has a spherical shape having approximately the same radius as the outer spherical surface of the spherical portion. In this embodiment, the lower cover abutting portion 20a is formed to have a spherical shape having approximately the same radius as the outer spherical surface of the spherical portion, as described above. However, the present invention is not limited to this, and the lower cover contact portion 20a may not have a spherical shape, and may be configured to form a plurality of discretely arranged convex portions, for example. Further, in this embodiment, the lower cover contact portion 20a and the lower cover 20 are configured as one piece. However, the present invention is not limited to this, and the lower cover contact portion 20a and the lower cover 20 may be constructed as separate parts.

The pan base 21 is formed in a spherical shape with a radius slightly larger than the outer spherical surface of the spherical part that is the combination of the front lens cover 34 and the rear lens cover 35. The pan base 21 is arranged so as to abut and cover the spherical surface of at least one of the front lens cover 34 and the rear lens cover 35. Further, the pan base 21 is configured to have a flange portion as a peripheral portion. The pan base 21 is pressed and fixed to a main base 22 having a hollow portion with a biasing member 23 in between. The biasing member 23 has a hollow, generally circular shape, and is sized to fit along the flange portion of the pan base 21 .

In this way, the front lens cover 34 and the rear lens cover 35 are rotatably supported while having a predetermined frictional force by being pressed and held between the pan base 21 and the lower cover contact portion 20a. . A pan axis Xp in FIG. 1 indicates a rotation axis in the panning direction (horizontal direction) of the imaging unit 30 (and front lens cover 34, rear lens cover 35, and pan base 21) in the imaging device 1. Rotates around axis Xp. When the imaging unit 30 rotates in the pan direction, the front lens cover 34, rear lens cover 35, and pan base 21 also rotate in the same rotation direction as the imaging unit 30 in conjunction with each other. The main base 22 is attached and fixed to the lower cover 20 with the pan base 21 and the biasing member 23 passed through the hollow portion.

The imaging unit 30 (and the front lens cover 34 and rear lens cover 35) of this embodiment is configured to be rotatable also in the tilt direction (vertical direction). When the imaging unit 30 rotates in the tilt direction, the front lens cover 34 and the rear lens cover 35 also rotate in the same direction as the imaging unit 30 in conjunction with each other. The rotation axis of the imaging unit 30 in the tilt direction is the tilt axis Xt in FIG. 1, and the imaging unit 30 rotates around the tilt axis Xt. Note that the imaging unit 30 can also be configured to be rotatable in the rotation direction, in which case the rotation axis in the rotation direction substantially coincides with the optical axis X.

The pan base 21 is provided with a tilt opening 21a. The edge of this tilt opening 21a is configured to be able to engage with a rib 34a formed on the front lens cover 34. The engagement between the edge of the tilt opening 21a and the rib 34a restricts rotation of the front lens cover 34 and the rear lens cover 35 in the tilt direction with respect to the pan base 21. Therefore, the imaging unit 30 is rotatable in the tilt direction with respect to the pan base 21 around the tilt axis Xt within a predetermined rotation range.

The electric board 24 is attached and fixed to the lower cover 20. On the electrical board 24, at least one computer including a CPU having a camera control unit, a memory, etc., electrical components for power supply, etc. are mounted. Note that at least one computer including a CPU having a camera control unit, memory, etc., electrical components for power supply, etc. are arranged outside the imaging device 1, and electrically connected to the electrical board 24. 24 may be used as a board for the relay.

The imaging device 1 in this embodiment has at least one illumination section. The illumination section includes a light source serving as a light projecting means, a substrate on which the light source is mounted, an illumination reflection section made of a material through which illumination light does not pass, an illumination transmission section, and the like. Here, the illumination section in this embodiment is composed of two illumination sections, a first illumination section 40 and a second illumination section 50. In this embodiment, the first illumination section 40 and the second illumination section 50 are arranged at positions facing each other with the dome cover 11 in between.

FIG. 3 is a diagram showing an example of a top view and a partially enlarged view of the imaging device 1. FIG. 3A is a diagram showing an example of a top view of the imaging device 1. FIG. 3B is a diagram showing an example of a partially enlarged view of the imaging device 1. Note that FIG. 1 is a cross-sectional view taken along the dashed line AA shown in FIG. 3A, and FIG. It is.

FIG. 4 is an example of a perspective view of the imaging device 1, in which the dome cover 11 and the illumination transmitting section 12, which are composed of parts that transmit illumination light, are shown transparently for explanation. The configuration of each illumination section (first illumination section 40, second illumination section 50) of the imaging device 1 in this embodiment will be described below with reference to FIGS. 1, 3, and 4.

The first illumination section 40 in this embodiment is configured to include a light source 41 and an illumination reflection section 10a. Further, the second illumination section 50 is configured to include a light source 51 and an illumination reflection section 10b.

The light source 41 and the light source 51 are mounted by being placed on the electric board 24, respectively. The light source 41 and the light source 51 in this embodiment are light emitting elements such as LEDs, and are, for example, infrared LEDs. Illumination light emitted from the light sources 41 and 51 passes through the illumination transmission section 12 and illuminates the subject. In addition, when the light source 41 and the light source 51 are light emitting elements such as infrared LEDs, the illumination transmitting part 12 is formed of a material that transmits infrared light (illumination light), for example, a resin such as colored polycarbonate. is preferred. Further, the illumination transmitting portion 12 may be formed of a material having a property of absorbing or reflecting light of unnecessary wavelengths as illumination light, such as absorbing visible light in the case of infrared light.

The illumination reflection section 10a and the illumination reflection section 10b are formed on the upper cover 10, respectively. That is, in this embodiment, the illumination reflection portions (the illumination reflection portion 10a, the illumination reflection portion 10b) are formed integrally with the upper cover 10. By forming the illumination reflection part 10a and the illumination reflection part 10b on the upper cover 10, a reflector part that reflects illumination light like the illumination reflection part of this embodiment is arranged for each light source (light source 41, light source 51). Compared to the case, it is possible to reduce the number of parts of the imaging device 1. Furthermore, since a positioning part and a fixing part for the reflector part are not required, the material cost can be reduced accordingly.

The illumination reflection section 10a and the illumination reflection section 10b have shapes near the light sources 41 and 51, respectively, and thus have shapes that protrude toward the light source side relative to other parts of the upper cover 10. In other words, the illumination reflecting portion is formed to protrude toward the light source side from the non-external surface of the upper cover 10. Here, the non-exterior surface corresponds to the back surface (the surface opposite to the exterior surface) when the exterior surface (external surface) of the imaging device 1 is the front surface. The external surface includes a surface in contact with the illumination transmitting section 12, and includes surfaces other than the illumination reflecting sections (the illumination reflecting section 10a, the illumination reflecting section 10b) formed on the upper cover 10. In other words, the thickness of the upper cover 10 is formed by the external surface and the non-external surface, and each illumination reflecting section is formed in the upper cover 10 so as to protrude toward the light source side relative to the thickness.

The illumination reflection section 10a and the illumination reflection section 10b have an opening (opening) connected from the vicinity of the light source to the outside of the imaging device 1 in order to emit the illumination light emitted from the light source 41 and the light source 51, respectively, to the outside of the imaging device 1. have The illumination reflection section 10a and the illumination reflection section 10b are formed on the upper cover 10 so as not to have a bottom surface on the side opposite to the opening (on the light source side), that is, to have the shape of a through hole. The surfaces of the illumination reflection section 10a and the illumination reflection section 10b, that is, the surfaces on the light source side, reflect illumination light.

The shapes of the through holes of the illumination reflecting portions 10a and 10b are formed in a trumpet shape in which the aperture diameter increases as the distance from the light source increases. That is, the shapes of the through-holes of the illumination reflection section 10a and the illumination reflection section 10b are formed such that the above-mentioned opening has the largest opening diameter, and the opening diameter decreases from the opening toward the light source side. . By forming the through holes of the illumination reflecting section 10a and the illumination reflecting section 10b into such a trumpet shape, the illumination light emitted from the light source 41 and the light source 51 can be efficiently emitted to the outside of the imaging device 1.

Although the illumination transmitting portion 12 is configured as a substantially annular component that transmits illumination light as described above, for example, the illumination transmitting portion 12 is provided at a position (portion) of the upper cover 10 that corresponds to at least the light source. 12 may be arranged. That is, the illumination transmitting section 12 may be divided according to the position of each light source and may be attached and fixed to the upper cover 10. In this case, the illumination transmission section 12 has a size larger than the diameter of the opening in the illumination reflection section 10a and the illumination reflection section 10b, and is arranged on the upper cover 10 so as to close the opening in the illumination reflection section 10a and the illumination reflection section 10b. .

Further, the illumination transmitting section 12 may be provided with a lens shape that condenses or diffuses illumination light to control light distribution. By providing a lens shape close to the light source, it is possible to integrally mold the upper cover 10 and the illumination transmitting part 12 even if each illumination reflecting part has a trumpet shape.

The illumination reflection section 10a has a shape around substantially the entire circumference of the light source 41 on the light emitting surface (light source surface) of the light source 41. Further, the illumination reflection section 10b has a shape around the entire circumference of the light source 51 on the light emitting surface of the light source 51, similarly to the illumination reflection section 10a. As a result, when the upper cover 10 is attached to the lower cover 20 on which the electric board 24 is disposed, the illumination reflection section 10a surrounds approximately the entire circumference of the light source 41, and the illumination reflection section 10b surrounds approximately the entire circumference of the light source 51. It is configured as follows.

Here, when the light emitting part of the light source is a point, the light emitting surface is a plane that passes through the light emitting point and is parallel to the electric board 24. Since each illumination reflecting section has a shape around the entire circumference of the light emitting surface of each light source, it reflects the illumination light emitted from the light source 41 or the light source 51 and directed toward the inside of the imaging device 1, and reflects the illumination light directed toward the inside of the imaging device 1, and the outside of the upper cover 10. (external), that is, can be efficiently emitted to the outside of the imaging device 1. Furthermore, it is possible to prevent the light emitted from the light source 41 or the light source 51 from becoming stray light and heading toward the inside of the imaging device 1, that is, the imaging unit 30.

A part of the illumination light emitted from the light source 41 is reflected by the illumination reflection section 10a and then transmitted through the illumination transmission section 12. A part of the illumination light emitted from the light source 51 is reflected by the illumination reflection section 10b and then transmitted through the illumination transmission section 12.

In this embodiment, the surface roughness of the illumination reflection section 10a and the illumination reflection section 10b is smaller than the surface roughness of the upper cover 10 excluding at least the illumination reflection section, and is finished smoothly. Thereby, the reflectance of the illumination light is improved, and the illumination light can be more efficiently emitted to the outside of the imaging device 1.

Further, in this embodiment, the illumination reflection section 10a and the illumination reflection section 10b are subjected to surface treatment to improve the reflectance of illumination light. As a surface treatment for improving the reflectance of illumination light, for example, metal plating, painting, or vapor deposition of aluminum or the like is applied to the illumination reflecting portions 10a and 10b. Thereby, illumination light can be more efficiently emitted to the outside of the imaging device 1.

Further, in this embodiment, when the upper cover 10 is attached and fixed to the lower cover 10, the opposing surfaces of the lighting reflecting portion 10a and the lighting reflecting portion 10b that are parallel to the electrical board 24 are configured so as not to touch the electrical board 24. be done. Thereby, it is possible to prevent loads such as unnecessary loads from being applied to the electric board 24.

Furthermore, when the upper cover 10 is attached and fixed to the lower cover 10, the distance between the electrical board 24 and the opposing surface parallel to the electrical board 24 of the lighting reflection section is shorter than the distance between the electrical board 24 and the light source surface of the light source. It is configured so that That is, the distance between one side of the electric board 24 and the one side of the electric board 24 of each illumination reflection section is larger than the distance between one side of the electric board 24 (the surface on the light source side) and the light source surface of each light source. The spacing between the opposing surfaces parallel to the surface is narrower. Thereby, the illumination light emitted from the light source 41 or the light source 51 directed into the imaging device 1 can be reflected and efficiently emitted to the outside of the upper cover 10, that is, to the outside of the imaging device 1. Furthermore, it is possible to prevent the light emitted from the light source 41 or the light source 51 from becoming stray light and heading toward the inside of the imaging device 1, that is, the imaging unit 30.

Moreover, the upper cover 10 has a light shielding part that blocks illumination light. In this embodiment, the upper cover 10 includes a number of light shielding parts corresponding to the number of light sources. In this embodiment, the upper cover 10 has a light shielding part 10c corresponding to the light source 41 and a light shielding part 10d corresponding to the light source 51, respectively. The light shielding part 10c and the light shielding part 10d are attached to the electric board 24 so as to penetrate the electric board 24.

In this embodiment, the light shielding section 10c is formed on the upper cover 10 so as to be connected to the illumination reflecting section 10a. The light shielding section 10d is formed on the upper cover 10 so as to be connected to the illumination reflecting section 10b. Then, through holes are formed in the electric board 24 at positions corresponding to the light shielding parts 10c and 10d, into which the light shielding parts 10c and 10d are inserted. When attaching the upper cover 10 to the lower cover 20, by inserting each light shielding part into each of the through holes, an electric board 24 having a light source 41 and a light source 51, a lighting reflection part 10a, and a lighting reflection part 10b are provided. The upper cover 10 is both positioned and attached to and fixed to the lower cover 20. With such a configuration, it is possible to prevent the light emitted from the light source 41 or the light source 51 from turning into stray light and heading into the interior of the imaging device 1 .

In addition, as another example, the light shielding part 10c and the light shielding part 10d are fitted with the through holes of the electric board 24 corresponding to the respective light shielding parts to determine the position, and the electric board 24 is attached and fixed to the upper cover 10. You may. Thereby, it becomes possible to assemble the light source 41 and the light source 51 with high positional accuracy with respect to the lens shapes formed in the illumination reflection part 10a, the illumination reflection part 10b, and the illumination transmission part 12.

Here, when viewed from a direction perpendicular to the installation surface of the imaging device 1, at least a portion of the light shielding portion 10c is arranged between the light source 41 and the imaging unit 30. Similarly, when viewed from a direction perpendicular to the installation surface of the imaging device 1, at least a portion of the light shielding portion 10d is arranged between the light source 51 and the imaging unit 30. With such a configuration, it is possible to prevent the light emitted from the light source 41 or the light source 51 from becoming stray light and heading toward the inside of the imaging device 1, that is, the imaging unit 30.

As described above, in the imaging device 1 of this embodiment, in addition to suppressing light from entering the inside of the imaging device 1 with the above-described configuration, each part such as the illumination reflecting part is integrally formed in the upper cover 10. The number of parts of the imaging device 1 can be reduced. Thereby, it is possible to provide an imaging device that can suppress unnecessary light from going toward the imaging unit 30 and can also reduce manufacturing costs and assembly man-hours.

The disclosure of this embodiment includes the following configurations.
(Configuration 1)
an imaging unit;
a first cover at least partially having a spherical surface and protecting the imaging unit;
a second cover on which the first cover is arranged;
at least one light source located inside the second cover;
A board on which a light source is mounted;
The second cover has an illumination reflection part that reflects a part of the illumination light emitted from the light source and emits it to the outside of the second cover,
The illumination reflecting part protrudes toward the light source side from the back surface of the external side surface of the second cover.
An imaging device characterized by:

(Configuration 2)
The imaging device according to configuration 1, wherein the illumination reflection section is formed on the second cover in a shape such that the aperture diameter becomes larger as the distance from the light source increases.

(Configuration 3)
3. The imaging device according to configuration 1 or 2, wherein the second cover has a number of illumination reflecting sections corresponding to the number of light sources.

(Configuration 4)
the board is attached to the third cover;
4. The imaging device according to any one of configurations 1 to 3, wherein an exterior of the imaging device is configured by combining the third cover with the second cover on which the first cover is arranged.

(Configuration 5)
4. The imaging device according to configuration 4, wherein the illumination reflection section is configured to surround the light source mounted on the substrate when the second cover and the third cover are combined.

(Configuration 6)
The second cover has an illumination transmission part for emitting illumination light emitted from the light source to the outside of the imaging device,
6. The imaging device according to configuration 4 or 5, wherein the illumination transmission section is configured to be at a position corresponding to at least the light source when the second cover and the third cover are combined.

(Configuration 7)
The first cover has a light shielding part that blocks illumination light,
7. The imaging device according to any one of configurations 1 to 6, wherein the light shielding portion is inserted into a through hole provided in the substrate.

(Configuration 8)
8. The imaging device according to configuration 7, wherein the first cover has a number of light shielding parts corresponding to the number of light sources.

(Configuration 9)
9. The imaging device according to configuration 7 or 8, wherein the light shielding section is disposed between the light source and the imaging section when viewed from a direction perpendicular to the installation surface of the imaging device.

(Configuration 10)
10. The imaging device according to any one of configurations 1 to 9, wherein the illumination reflecting portion has a surface roughness that is smaller than at least a surface roughness of the second cover.

(Configuration 11)
11. The imaging device according to any one of configurations 1 to 10, wherein the surface of the illumination reflection section is treated to improve reflectance of illumination light.

(Configuration 12)
According to any one of configurations 1 to 11, the distance between the substrate and the opposing surface of the illumination reflection part that is parallel to the substrate is narrower than the distance between the light emitting surface of the light source and the substrate. imaging device.

(Configuration 13)
13. The imaging device according to any one of configurations 1 to 12, wherein the illumination reflection section is formed of a material through which illumination light does not pass.

(Configuration 14)
14. The imaging device according to any one of configurations 1 to 13, wherein the first cover is formed of a transparent material into a dome shape.

Although preferred embodiments of the present invention have been described above using examples and figures, the present invention is not limited to these embodiments, and various modifications and changes can be made within the scope of the gist thereof.

The present invention provides a program that implements one or more functions of each embodiment described above to a system or device via a network or a storage medium, and one or more processors in a computer of the system or device reads the program. It can also be realized by executing processing. In that case, the program and the storage medium storing the program constitute the present invention. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

1 Imaging device 10 Upper cover 10a, 10b Lighting reflection section 10c, 10d Light shielding section 11 Dome cover 12 Lighting transmission section 20 Lower cover 21 Pan base 21a Tilt opening 22 Main base 23 Biasing member 24 Electric board 30 Imaging unit 31 Lens Unit 32 Lens holder 33 Image sensor board 34 Front lens cover 34a Rib 35 Rear lens cover 40, 50 Lighting section 41, 51 Light source

Claims (14)

an imaging unit;
a first cover at least partially having a spherical surface and protecting the imaging unit;
a second cover on which the first cover is placed;
at least one light source located inside the second cover;
A board on which the light source is mounted,
The second cover has an illumination reflection part that reflects a part of the illumination light emitted from the light source and causes the illumination light to be emitted to the outside of the second cover,
The illumination reflecting portion protrudes toward the light source side from a back surface of the external surface of the second cover.
An imaging device characterized by: The imaging device according to claim 1, wherein the illumination reflecting section is formed on the second cover in a shape such that the opening diameter becomes larger as the distance from the light source increases. The imaging device according to claim 1, wherein the second cover has a number of the illumination reflecting sections corresponding to the number of the light sources. the substrate is attached to a third cover;
The imaging device according to claim 1, wherein an exterior of the imaging device is configured by combining the third cover with the second cover on which the first cover is arranged. The imaging device according to claim 4, wherein the illumination reflecting section is configured to surround the light source mounted on the substrate when the second cover and the third cover are combined. Device. The second cover has an illumination transmission part for emitting the illumination light emitted from the light source to the outside of the imaging device,
The imaging device according to claim 4, wherein the illumination transmission section is configured to be at a position corresponding to at least the light source when the second cover and the third cover are combined. . The first cover has a light shielding part that blocks the illumination light,
The imaging device according to claim 1, wherein the light shielding section is inserted into a through hole provided in the substrate. The imaging device according to claim 7, wherein the first cover has a number of the light shielding parts corresponding to the number of the light sources. The imaging device according to claim 7, wherein the light shielding section is disposed between the light source and the imaging section when viewed from a direction perpendicular to an installation surface of the imaging device. The imaging device according to claim 1, wherein the illumination reflecting section has a surface roughness that is smaller than at least a surface roughness of the second cover. The imaging device according to claim 1, wherein a surface of the illumination reflecting section is treated to improve reflectance of the illumination light. 2. A distance between a surface of the illumination reflecting section parallel to the substrate and the substrate is narrower than a distance between a light emitting surface of the light source and the substrate. Imaging device. The imaging device according to claim 1, wherein the illumination reflection section is formed of a material through which the illumination light does not pass. The imaging device according to claim 1, wherein the first cover is formed of a transparent material into a dome shape.