JP6102787B2 - Camera device and surveillance camera device - Google Patents

Description

  The present invention relates to a camera device and a monitoring camera device capable of adjusting the rotation of a captured image.

  2. Description of the Related Art There is known a camera device that can adjust rotation (rotation) of a captured image mechanically for leveling the captured image or intentionally tilting the captured image. One example is described in Patent Document 1 as an imaging unit rotation control video camera.

The rotation adjustment is particularly effective in an application (for example, monitoring application) in which the camera apparatus is fixedly installed.
Specifically, there is a case where the monitoring camera device has to be installed in an inclined posture due to restrictions on the installation location, the composition of the image to be acquired, and the angle of view. In this case, since the image is inclined, it is desired to level the image, and a camera device having a rotation adjustment structure is required.

JP-A-5-252430

Incidentally, in the camera device described in Patent Document 1, the imaging unit is rotatably supported by the frame of the housing in order to enable rotation.
Specifically, the outer peripheral portion of the end portion on the subject side in the image pickup unit is supported by the frame via three rollers, and the opposite end portion is a shaft portion projecting on the rotation axis to provide a ball bearing. It can be rotated by being supported by the frame.
This structure itself can also be applied to a monitoring camera device. However, in the surveillance camera market where space saving and low cost are required, the complexity of the support structure using multiple rollers and the high cost due to the use of rollers and ball bearings hinder smooth market introduction and require improvement. It has been.

  Therefore, the problem to be solved by the present invention is to provide a camera device and a monitoring camera device that can adjust the rotation of a captured image at a low cost with a simple structure.

In order to solve the above problems, the present invention has the following configuration.
1) A lens unit (3c) having an image pickup device (3b) disposed on a lens unit (3a) and an optical axis (CLc) of the lens unit (3a), and attached to the lens unit (3c), An arcuate flange portion (5a) centered on the optical axis (CLc) disposed so as to cover the outer peripheral surface of the lens portion (3a), and the lens portion (3a) with the imaging element (3b) interposed therebetween. Is a bracket (5) having a rear wall (5r) that covers the opposite end and forms a first engaging portion (5h1) that can be engaged with the concave and convex on the optical axis (CLc);
A main body (HT) with
A housing (HS) having an opening (11a) in which the flange portion (5a) is fitted, and a second engagement portion (12b) engaged with the first engagement portion (5h1) in an uneven manner; ,
A drive unit (13) for rotating the bracket (5) around the optical axis with respect to the housing;
Is a camera device (3).
2) A surveillance camera device comprising a camera device (3), a motor (Mp) for rotating the camera device (3) in the pan direction, and a motor (Mt) for rotating in the tilt direction,
The camera device (3)
A lens unit (3c) having an image pickup device (3b) disposed on the optical axis (CLc) of the lens unit (3a) and the lens unit (3a), and the lens unit (3c), the lens unit An arcuate flange portion (5a) centered on the optical axis (CLc) disposed so as to cover the outer peripheral surface of (3a), and the lens portion (3a) opposite to the imaging element (3b) A rear wall portion (5r) that covers the end portion on the side and forms a first engaging portion (5h1) that can be engaged with the concave and convex portions on the optical axis (CLc), and a bracket (5),
A main body (HT) with
A housing (HS) having an opening (11a) in which the flange portion (5a) is fitted, and a second engagement portion (12b) engaged with the first engagement portion (5h1) in an uneven manner; ,
A drive unit (13) for rotating the bracket (5) around the optical axis (CLc) relative to the housing (HS);
A surveillance camera device (51) characterized by comprising:

  According to the present invention, it is possible to obtain an effect that rotation of a captured image can be adjusted at a low cost with a simple structure.

It is a perspective view for demonstrating the surveillance camera apparatus 51 which is an Example of the camera apparatus which concerns on embodiment of this invention. It is a block diagram for demonstrating monitoring system ST containing the monitoring camera apparatus 51. FIG. It is a perspective view for demonstrating the camera apparatus 3 in the monitoring camera apparatus 51. FIG. 4 is a perspective view for explaining a main body portion HT in the camera device 3. FIG. It is an assembly drawing of the main-body part HT. It is a perspective view for demonstrating the state which combined the left bracket 5L and the right bracket 5R in the main-body part HT. It is sectional drawing for demonstrating the support structure of the front side which enables the main-body part HT to rotate. It is a perspective view for demonstrating the back side support structure which enables the main-body part HT to rotate. 4 is a perspective view for explaining a rotation driving unit 13 in the camera device 3. FIG. 4 is a schematic cross-sectional view for explaining the structure of the camera device 3. FIG. It is a typical front view for demonstrating rotation of the main-body part HT.

  A camera apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 11 by a monitoring camera apparatus 51 which is a preferred embodiment.

First, an overall configuration of the monitoring camera device 51 and an example of a monitoring system ST constructed including the monitoring camera device 51 will be described with reference to FIGS. 1 and 2, respectively.
FIG. 1 is a schematic perspective view for explaining a schematic configuration of the monitoring camera device 51, and FIG. 2 is a block diagram for explaining a configuration of the monitoring system ST.
The surveillance camera device 51 is a so-called PTZ type dome surveillance camera capable of remote control of pan, tilt and zoom operations.

The surveillance camera device 51 includes a base portion 1, a transparent dome-shaped cover 2, and a camera device 3 supported by the base portion 1 and housed inside the cover 2.
In FIG. 1, for explaining the camera device 3, a part of the base portion 1 and the cover 2 is cut away.

The camera device 3 includes a lens unit 3c having a lens unit 3a and an imaging element 3b disposed on the optical axis CLc of the lens unit 3a, a motor Mp, and a motor Mt. An image signal SGa including image information is output from the image sensor 3b. The image includes a still image and a moving image.
The lens unit 3c rotates in the pan direction (see arrow Dp) around the rotation axis CLp by driving the motor Mp, and rotates in the tilt direction (arrow Dt) around the rotation axis CLt by driving the motor Mt. It has become.
The rotation axis CLp is set so as to be orthogonal to the attachment surface 1a of the base portion 1. The attachment surface 1a is a surface that serves as an attachment reference when the surveillance camera device 51 is attached to a member to be installed.

The camera device 3 includes a motor Mz and a motor Mr.
The monitoring camera device 51 can perform zoom adjustment by driving the motor Mz.

The camera device 3 includes a main body HT (described later: see FIG. 3) including a lens unit 3c, and a housing HS (described later: see FIG. 3) that supports the main body HT so as to be rotatable around the optical axis CLc within a predetermined angle range. ), And has a structure that allows rotation adjustment by rotation of the main body portion HT with respect to the housing HS.
The motor Mr rotates the main body HT in the rotation direction (arrow Dr) around the optical axis CLc with respect to the housing HS.
Details of the double structure of the camera device 3 and the structure that enables rotation will be described later.

  The position information of the member displaced by each operation is detected by a plurality of sensors or encoders of each motor (hereinafter collectively referred to as sensor system S). From the sensor system S, a position signal SGb including each position information and displacement information is output.

In the monitoring system ST, the panning operation, the tilting operation, the zooming operation, and the rotation operation of the monitoring camera device 51 can be remotely controlled from the control device 52 by wire or wirelessly.
Specifically, the image signal SGa from the image sensor 3b and the position signal SGb from the sensor system are sent to the control device 52 through the interface 4a.
From the control device 52, a motor control signal SGc is sent to the motors Mp, Mt, Mz, Mr via the interface 4b.
An instruction from an operator is input to the control device 52 via an input device 53 such as a keyboard or a touch panel.
Management information such as the operation state and control state of the monitoring camera device 51, and information such as captured images (including still images and moving images) are output from an output device 54 such as a monitor.

Next, the camera device 3 having the rotation adjustment structure will be described in the order of the main body portion HT and the housing HS with reference mainly to FIGS.
FIG. 3 is a perspective view of the camera device 3 as viewed from the front upper right direction for explaining a schematic configuration. FIG. 4 is a perspective view seen from the same direction for explaining the main body HT. FIG. 5 is a perspective assembly view of the main body HT. FIG. 6 is a perspective view of a state in which a pair of brackets 5 which will be described later is combined, as viewed from the rear left upper side.
For convenience of explanation, the front, rear, left, right and up and down directions are defined as shown by the arrows in each figure. For example, the optical axis CLc extends in the front-rear direction.

(About the main body HT)
In the lens unit 3c of the main body HT, the lens unit 3a is disposed on the front side, and the substrate body 3b1 mounted with the image sensor 3b and the electronic circuit and connected to the image sensor 3b is disposed on the rear side.
In the lens unit 3c, the image sensor 3b and the substrate body 3b1 serve as heat sources that generate heat in the operating state.

In the main body HT, a left bracket 5L is attached to the lens unit 3c so as to cover the left side surface. A right bracket 5R is attached so as to cover the right side surface.
In the embodiment, the left bracket 5L and the right bracket 5R use the same member (bracket 5). That is, the two brackets 5 are attached so as to be combined from the left and right of the lens unit 3c in a posture rotated by 180 ° about the optical axis CLc.

  As shown in detail in FIG. 5, the bracket 5 is fastened to the two bosses 3d provided on the right side surface of the lens unit 3c as male right screws 5TR as the right bracket 5R. The left bracket 5L is also fastened by two male screws BTL to two bosses (not shown) provided on the left side surface of the lens unit 3c.

In the main body portion HT, the bracket 5 is bent at a right angle from the rear end side of the base portion 5k, a flat base portion 5k extending up and down, a front wall portion 5f bent from the front end portion of the base portion 5k. And a rear wall portion 5r, and is formed in a substantially U-shape.
The bracket 5 is made of a metal such as aluminum. A material having a high heat transfer rate is preferable.

The front wall portion 5f is formed with an arcuate flange portion 5a that rises forward.
As shown in FIG. 7, the flange portion 5a is formed such that its inner radius Ra is larger than the radius Rb of the outer peripheral surface of the front end portion of the lens frame 3c1 by the gap distance dc. It extends approximately 180 ° in the circumferential direction and has a semicircular arc shape.
Accordingly, in a state where the pair of brackets 5 are attached to the lens unit 3c as the left bracket 5L and the right bracket 5R (the state shown in FIG. 4), the flange portion 5a has a clearance distance over the entire circumference without contacting the lens frame 3c1. They are separated by dc. Specifically, the flange portion 5a covers (encloses) at least a partial range in the front-rear direction on the outer peripheral surface of the front end portion of the lens frame 3c1 with a substantially entire circumference through a gap.

The bracket 5 is formed with overlapping portions 5g1 and 5g2 that overlap at a pair of upper left and lower right corners when viewed from the front when the left and right pairs are combined.
The overlapping portion 5g1 is provided independently of the front wall portion 5f, and the overlapping portion 5g2 is provided at the tip portion of the front wall portion 5f.

Specifically, the overlapping portion 5g1 is formed with a protrusion 5g1a by a half punch protruding forward for positioning, and a female screw portion 5g1b.
The overlapping portion 5g2 is formed with a through hole 5g2a that engages with the protrusion 5g1a with a minute clearance and a screw insertion hole 5g2b.
The overlapping portion 5g1 and the overlapping portion 5g2 are fastened with the male screw BTF screwed into the female screw portion 5g1b from the front side in a state where the protruding portion 5g1a is engaged with the through hole 5g2a. Thereby, the pair of left and right brackets 5 are integrated on the front side.

Overlapping portions 5g3 and 5g4 are formed on the rear wall portion 5r so as to overlap each other at the upper center and the lower center when the brackets 5 are paired on the left and right sides. ,
The overlapping portion 5g3 is formed with a protrusion 5g3a (see also FIG. 6) by a half punch that protrudes backward for positioning, and a female screw portion 5g3b.
The overlapping portion 5g4 is formed with a through hole 5g4a that engages with the protrusion 5g3a with a minute clearance and a screw insertion hole 5g4b.
The overlapping portion 5g3 and the overlapping portion 5g4 are fastened with two male screws BTB screwed into the female screw portion 5g3b from the rear side in a state where the protruding portion 5g3a is engaged with the through hole 5g4a. Thereby, the pair of left and right brackets 5 are integrated on the rear side.
The substrate body 3b1 is connected to the rear wall 5r directly or indirectly via a heat transfer member. That is, the heat of the substrate body 3b1 is favorably transmitted to the rear wall portion 5r.

The rear wall portion 5r covers an end portion of the lens unit 3c that is opposite to the lens portion 3a with the image sensor 3b interposed therebetween.
The rear wall 5r is formed with a semicircular arc-shaped cut portion 5h centered on the optical axis CLc when the bracket 5 is paired on the left and right.
The notch 5h forms a circular opening 5h1 with a predetermined inner diameter centered on the optical axis CLc when the bracket 5 is paired on the left and right (see FIG. 6).
The opening 5h1 functions as a concave engaging portion capable of so-called uneven engagement.

As shown in FIG. 6, a worm wheel 6 is attached to the outer surface of one of the left and right brackets 5 (here, the base 5k of the left bracket 5L arranged on the left side. Is a direction in which the circumference extends, and the helical tooth portion is attached so as to protrude leftward in an arc shape.
The center position of the arc of the worm wheel 6 is on the optical axis CLc.

(About housing HS)
As shown in FIG. 3, the housing HS has a front housing 11 formed in a substantially L shape so as to cover the right side and the front side of the main body portion HT, and a substantially L shape so as to cover the left side and the rear side of the main body portion HT. The rear housing 12 formed into a shape is combined. The front housing 11 and the rear housing 12 are fastened by male threads BTH at a plurality of locations. The housing HS has a rectangular frame shape when viewed from above.

The front housing 11 has a base portion 11k that extends in the vertical and longitudinal directions along the optical axis CLc, and a front wall portion 11f that is bent from the front end portion of the base portion 11k and covers the front of the main body portion HT.
A circular opening 11a is formed in the central portion of the front wall portion 11f. Further, as shown in FIG. 7, a flange 11b is formed on the peripheral portion of the opening 11a so as to project forward in an annular shape with an inner diameter Da.

Here, the radius Db of the outer peripheral surface 5a1 of the flange portion 5a is equal to or slightly smaller than half of the inner diameter Da (Da / 2) of the flange 11b.
Therefore, the flange portion 5a in a state where the pair of left and right brackets 5 are combined is fitted (internally fitted) with substantially no gap in the opening portion 11a.

  Returning to FIG. 3, the rear housing 12 includes a base portion 12k extending in the up-down and front-back direction along the optical axis CLc, a rear wall portion 12r bent from the rear end portion of the base portion 12k and covering the back of the main body portion HT, have.

  The rear wall portion 12r will be described with reference to FIG. FIG. 8 is a perspective view of the rear end side of the camera device 3 as viewed from the front oblique upper right, and is a diagram in which the lens unit 3c and the right bracket 5R are not shown from the camera device 3.

As shown in FIG. 8, the rear wall portion 12r has a pedestal portion 12a that is raised in a circular shape forward about the optical axis CLc, and a cylindrical shape that is further forward in the pedestal portion 12a about the optical axis CLc. And a protruding engagement protrusion 12b.
The engaging protrusion 12b functions as a convex engaging portion capable of engaging with a so-called concave / convex engagement.
That is, in the camera device 3, the engagement protrusion 12b is engaged with the opening 5h1 formed by the left bracket 5L and the right bracket 5R with almost no play (clearance).

Returning to FIG. 3, a rotation drive unit 13 including a motor Mr is provided on the inner surface of the base 12 k of the rear housing 12.
Details of the rotation drive unit 13 are shown in FIG. FIG. 9 is a view of a part of the base 12k as viewed from the optical axis CLc side.

The rotation drive unit 13 includes a drive base 13a formed of resin, and a worm shaft 13b supported by the drive base 13a so as to be rotatable in a posture in which the vertical direction is the axial direction. The worm shaft 13b is assembled to the drive base 13a by, for example, a snap-fit locking structure.
The worm shaft 13b has a worm 13c in the center and a flat gear 13d on the lower end side.
A motor Mr is housed and fixed below the drive base 13a.

The rotation driving unit 13 is also shown in FIG. In FIG. 6, the drive base 13a is omitted for convenience.
The spur gear 13d of the worm shaft 13b is meshed with a spur gear Mra provided on the output shaft of the motor Mr. The worm 13c meshes with the worm wheel 6 attached to the base portion 5k of the left bracket 5L.
Thereby, the worm 13c is rotated by driving the motor Mr, and the worm wheel 6 meshing with the worm 13c is moved upward or downward (arrow DR6 direction) according to the rotation direction of the motor Mr.

As described above, in the main body portion HT, on the rear end side, the engagement protrusion of the housing HS rotates in the opening 5h1 formed in the rear end portions of the left bracket 5L and the right bracket 5R that support the lens unit 3c. Engage freely. Further, on the front end side, the flange portions 5a of the left bracket 5L and the right bracket 5R are rotatably engaged with the opening 11a of the housing HS.
Accordingly, the main body portion HT is supported so as to freely rotate around the optical axis CLc with respect to the housing HS.

Returning to FIG. 3, a shaft portion 14 </ b> L that protrudes to the left and a shaft portion 14 </ b> R that protrudes to the right are formed on the same axis at an intermediate portion in the front-rear direction of the housing HS.
This same axis is the rotation axis CLt (see FIG. 1) of the tilt operation in the surveillance camera device.
That is, the camera device 3 is supported by the shaft portion 14 </ b> L and the shaft portion 14 </ b> R and is incorporated in the monitoring camera device 51.

The structure of the camera device 3 described above is generalized and described with reference to FIG.
FIG. 10 is a cross-sectional view schematically showing a generalized structure of the camera device 3.

On the front side of the main body portion HT, the flange portions 5a of the left bracket 5L and the right bracket 5R are accurately fitted inside the flange 11b of the housing HS, and are supported to freely rotate around the optical axis CLc without shaft shake. ing.
On the rear side of the main body HT, the engagement protrusion 12b of the housing HS is accurately engaged with the opening 5h1 formed around the optical axis CLc formed on the main body HT side. It is supported to freely rotate.
As a result, the main body HT is rotatably supported with respect to the housing HS without using a roller or a ball bearing.

The distance La in the optical axis CLc direction between the front surface of the front wall portion 5f and the rear surface of the rear wall portion 5r in the main body portion HT is equal to the rear surface of the front wall portion 11f in the front housing 11 of the housing HS and the rear housing 12. The distance Lb in the direction of the optical axis CLc between the rear wall 12r and the front surface of the pedestal 12a is set substantially the same.
As a result, the assembled main body HT rotates well with respect to the housing HS without disengaging the engagement protrusion 12b and the opening 5h1.

As shown in FIG. 11 which is a schematic front view, the rotation of the main body portion HT relative to the housing HS is driven by a motor Mr provided in the rotation drive portion 13 so as to form a worm gear WG comprising a worm 13c and a worm wheel 6. Is done through.
The worm wheel 6 is moved downward by the rotation of the worm 13c in one direction. As a result, the main body portion HT rotates in the direction of the arrow DR1 around the optical axis CLc. The worm wheel 6 is moved upward by the reverse rotation of the worm 13c. As a result, the main body portion HT rotates in the direction of the arrow DR2 around the optical axis CLc.

Therefore, by controlling the rotation direction and the rotation amount of the motor Mr by the control device 52, the rotation direction and the rotation amount of the main body HT can be controlled.
Thereby, the inclination of the captured image around the optical axis CLc can be arbitrarily adjusted by remote operation. That is, the picked-up image can be leveled or intentionally inclined.

  As described above, the rotation adjustment structure mounted on the camera device 3 can perform rotation adjustment at a low cost with a simple structure without using a roller or a bearing.

As described above, the heat sources in the lens unit 3c are the imaging element 3b and the substrate body 3b1 arranged on the rear side.
In the camera device 3, since the rear end of the lens unit 3c is in surface contact with the pedestal 12a of the rear housing 12, most of the heat generated from the imaging device 3b and the substrate body 3b1, which is a heat source, is from the rear end. It is transmitted to the housing HS.
In the monitoring camera device 51, the camera device 3 is supported by shaft portions 14L and 14R provided at the center in the front-rear direction of the housing HS. Therefore, the heat transmitted to the housing HS further escapes to the base portion 1 side through the shaft portions 14L and 14R. A heat sink (not shown) may be attached to the housing HS as necessary. Heat dissipation from the housing HS is promoted by the heat sink.
Therefore, almost no heat is transferred to the front end side of the housing HS.

Further, part of the heat transmitted from the heat source to the left bracket 5L and the right bracket 5R is transmitted to the front flange portion 5a of the left bracket 5L and the right bracket 5R. Here, a gap having a gap distance dc is provided between the flange portion 5a and the lens unit 3c.
Therefore, almost no heat is transferred from the flange portion 5a to the lens portion 3a of the lens unit 3c. Therefore, when heat is transmitted, the member of the lens portion 3a does not expand and optical distortion or the like does not occur, and a good captured image can be stably obtained.

  The embodiment of the present invention is not limited to the above-described configuration, and may be further modified without departing from the gist of the present invention.

The monitoring camera device 51 is not limited to a so-called dome camera.
The surveillance camera device 51 may not perform the pan operation, the tilt operation, and the zoom operation. That is, an apparatus capable of only rotating adjustment may be used.
The rotation of the main body HT with respect to the housing HS is not limited to that using a worm gear. Other rotating means may be used.
The left bracket 5L and the right bracket 5R may not be completely the same shape as long as they are substantially the same shape. For example, even if the detailed shapes are different, it is sufficient if they can be used interchangeably.
The bracket 5 is not limited to two bodies of the left bracket 5L and the right bracket 5R. One or three or more bodies may be used.
The uneven relationship between the opening 5h1 on the bracket 5 side and the engaging protrusion 12b on the housing HS side that engages with the opening 5h1 may be reversed. That is, a structure may be employed in which a convex engagement portion is provided on the bracket 5 side and a concave engagement portion is provided on the housing HS side to engage with the concave and convex portions.
The camera device of the present invention is not limited to application to a surveillance camera device, and can be applied to various devices (for example, robots, automobiles, playground equipment, portable electronic devices, etc.) that require a function of capturing an image.

DESCRIPTION OF SYMBOLS 1 Base part, 1a Mounting surface 2 Cover 3 Camera apparatus 3a Lens part, 3b Image pick-up element, 3b1 Substrate body 3c Lens unit, 3c1 Lens frame, 3d Boss 4a, 4b Interface 5 Bracket 5a Flange part, 5f Front wall part, 5g1 5g4 superposition part 5g1a, 5g3a protrusion, 5g2b, 5g4b hole 5g2a, 5g4a through hole, 5g1b, 5g3b female thread part 5h notch part, 5h1 opening part (engagement part), 5k base part 5R left bracket 5R left bracket 5R 6 Worm wheel 11 Front housing 11a Opening part, 11b Flange, 11f Front wall part 11k Base part 12 Rear housing 12a Pedestal part, 12b Engagement projection part (engagement part), 12k Base part 13 Rotation drive part 13a Drive base, 13b Warm shaft 13c Worm, 13d Spur gears 14L, 14R Shaft 51 Monitoring camera device 52 Control device 53 Input device 54 Output device BTL, BTR, BTF, BTB, BTH Male thread CLc Optical axis, CLp, CLt Rotating axis Da Inner diameter, Db Radius, dc clearance distance HT main body, HS housing Mt, Mp, Mr, Mz motor Mra spur gear La, Lb distance Ra inner radius, Rb radius S sensor system SGa image signal, SGb position signal, SGc motor control signal ST monitoring system WG worm gear

Claims (5)

A lens unit having a lens unit and an image pickup device arranged on the optical axis of the lens unit, and an arc shape centered on the optical axis attached to the lens unit and arranged to cover the outer peripheral surface of the lens unit And a bracket having a rear wall portion that covers an end opposite to the lens portion across the imaging element and forms a first engaging portion that can be engaged with the concave and convex portions on the optical axis,
A main body with
A housing having an opening into which the flange portion fits, and a second engagement portion that engages with the first engagement portion.
A drive unit for rotating the bracket around the optical axis with respect to the housing;
A camera device.   2. The bracket includes a pair of brackets having substantially the same shape, and the pair of brackets are attached to the lens unit so as to cover both side surfaces sandwiching the optical axis. Camera device.   The camera apparatus according to claim 1, wherein the flange portion is disposed so as to have a gap between the flange unit and the lens unit.   The camera device according to claim 1, wherein the drive unit includes a motor and a worm gear. A surveillance camera device comprising: a camera device; a motor that rotates the camera device in a pan direction; and a motor that rotates the camera device in a tilt direction,
The camera device is
A lens unit having a lens unit and an image pickup device arranged on the optical axis of the lens unit, and an arc shape centered on the optical axis attached to the lens unit and arranged to cover the outer peripheral surface of the lens unit And a bracket having a rear wall portion that covers an end opposite to the lens portion across the imaging element and forms a first engaging portion that can be engaged with the concave and convex portions on the optical axis,
A main body with
A housing having an opening into which the flange portion fits, and a second engagement portion that engages with the first engagement portion.
A drive unit for rotating the bracket around the optical axis with respect to the housing;
A surveillance camera device comprising:

Images