Imaging apparatus

Abstract

To provide an imaging apparatus comprising a camera unit rotatable centered on a rotation axis, the imaging apparatus capable of easily adjusting an AF unit of an external measurement system, while preventing a user's unnecessary contact with the AF unit.SOLUTION: An imaging apparatus comprises: a camera unit that includes a lens barrel, an autofocus unit arranged outside the lens barrel, a lens barrel holding member holding the lens barrel, and a camera case engaged with the lens barrel holding member and covering the autofocus unit; a base member that rotatably supports the camera unit around a rotation axis; a base case that covers the base member; and a regulation member that regulates the rotation of the camera unit within a first rotation range. In the imaging apparatus, when the camera unit is within a first rotation range, the camera case is engaged with the lens barrel holding member, and when the regulation member is removed and the camera unit is within a second rotation range, the camera case can be removed from the lens barrel holding member.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to an imaging device, and more particularly to a rotatable imaging device equipped with a focus detection method that uses external phase difference detection. [Background technology]

[0002] In recent years, some imaging devices used for recording and distributing lectures, live streaming concerts, etc. are equipped with a pan / tilt mechanism that enables the imaging unit to pan and tilt relative to the installation surface so that a wide range can be captured. For example, Patent Document 1 discloses an imaging device that allows pan rotation of ±170 degrees and tilt rotation from -30 degrees to +90 degrees.

[0003] Furthermore, some imaging devices equipped with a pan-tilt mechanism are equipped with a hybrid AF method that combines a contrast AF method and an external phase difference AF method as an AF (autofocus) method to achieve faster focusing performance. The contrast AF method is a common AF method installed in imaging devices, and extracts high-frequency components from the video signal obtained using the imaging element to generate a signal indicating the focus state, and controls the position of the focus lens so that the signal is maximized. The external phase difference AF method uses light that does not pass through the imaging system to directly detect the distance to the subject with an AF sensor (autofocus sensor), and controls the position of the focus lens based on the detected distance.

[0004] In an imaging device equipped with a hybrid AF system, it is necessary to adjust the orientation of a unit having an AF sensor (hereinafter referred to as an external measurement AF unit) in order to make the optical axis of the AF sensor approximately coincident with the optical axis of the imaging system. The orientation of the external measurement AF unit is adjusted by rotating an eccentric pin that abuts against the external measurement AF unit with a tool such as a screwdriver while outputting an image with the imaging unit facing the chart. However, if the eccentric pin is moved after the product is sold, it is necessary to readjust the orientation of the external measurement AF unit. For this reason, in order to prevent tampering, i.e., to prevent the eccentric pin from being moved unnecessarily, it is desirable to place the eccentric pin in a place where it cannot be easily touched by users.

[0005] On the other hand, since the orientation of the external AF unit may be adjusted during customer service after the product is sold, it is desirable to be able to adjust the orientation of the external AF unit while still allowing image output without the need to remove many parts. Here, the external AF unit is generally placed below the imaging unit from the viewpoint of design. For this reason, in an imaging device equipped with a pan-tilt mechanism, it is desirable to be able to fix the chart at a predetermined rotation angle so that it can be installed on a wall or the like when adjusting the orientation of the external AF unit, and the eccentric pin that needs to be rotated with a tool such as a screwdriver is exposed. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2005-203907 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, as described in Patent Document 1, in an imaging device with a maximum tilt angle of less than 180 degrees, if the external measurement AF unit is placed below the imaging unit due to specification constraints, customer service cannot easily readjust the orientation of the external measurement AF unit.

[0008] The present invention provides an imaging device in which a camera unit is rotatable around a rotation axis, and in which the AF unit can be easily adjusted while preventing unnecessary contact by a user with an external measurement type AF unit. [Means for solving the problem]

[0009] In order to solve the above problem, the present invention provides a camera unit comprising: a lens barrel, an autofocus unit arranged outside the lens barrel, a lens barrel holding member that holds the lens barrel, and a camera case that engages with the lens barrel holding member and covers the autofocus unit, a base member that supports the camera unit rotatably around a rotation axis, a base case that covers the base member, and a regulating member that restricts the rotation of the camera unit to a first rotation range, wherein when the camera unit is in the first rotation range, the camera case engages with the lens barrel holding member, and when the regulating member is removed and the camera unit is in a second rotation range, the camera case is removable from the lens barrel holding member. Effect of the Invention

[0010] According to the present invention, in an imaging device in which a camera unit is rotatable around a rotation axis, it is possible to easily adjust an external measurement type AF unit while preventing the user from making unnecessary contact with the AF unit. [Brief description of the drawings]

[0011] [Figure 1] 1 is a perspective view of an imaging device according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6]FIG. 2 is a perspective view of the imaging device in a state where the orientation of the external measurement AF unit is adjusted according to step 1. [Figure 7] FIG. 11 is a perspective view of the imaging device in a state where the orientation of the external measurement AF unit is adjusted according to step 2. [Figure 8] FIG. 11 is a perspective view of the imaging device in a state where the orientation of the external measurement AF unit is adjusted according to step 3. [Figure 9] FIG. 11 is a perspective view of the imaging device in a state where the orientation of the external measurement AF unit is adjusted according to step 4. [Figure 10] FIG. 13 is a diagram showing a second tilt rotation range of the camera unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] <Embodiment> In this embodiment, an example of an embodiment of an imaging device to which the present invention is applied will be described.

[0013] FIG. 1 is a perspective view of an imaging device 100 according to this embodiment. The imaging device 100 includes a camera unit 200, a panning unit 300, and a bottom unit 400. The imaging device 100 can tilt around a tilt axis 102 that is approximately parallel to the installation surface and approximately perpendicular to an optical axis 101 of the imaging system, and can pan around a panning axis 103 that is approximately perpendicular to the installation surface. The imaging device 100 also includes a hybrid AF method that combines a general contrast AF method and an external measurement phase difference AF method using an external measurement AF unit (autofocus unit) 215, which will be described later, as an AF method. Based on the focus states detected by both AF methods, the drive of the focus lens group of the lens barrel 201 arranged in the camera unit 200 is controlled. Note that the optical axis 104 of the AF sensor needs to be approximately aligned with the optical axis 101 of the imaging system by adjusting the orientation of the external measurement AF unit 215 so that an accurate focus state can be detected.

[0014] In the following, the basic posture in Fig. 1 is defined as a pan angle of 0 degrees and a tilt angle of 0 degrees, direction 102a is defined as the positive direction of tilt rotation, and direction 103a is defined as the positive direction of pan rotation. In addition, in the basic posture in Fig. 1, the X-axis + side is defined as the front, the X-axis - side is defined as the rear, the Z-axis + side is defined as the top, and the Z-axis - side is defined as the bottom.

[0015] Fig. 2 is a perspective view of the periphery of the lens barrel 201. Fig. 3 is an exploded perspective view of the camera unit 200. Fig. 4 is an exploded perspective view of the pan unit 300. Fig. 5 is an exploded perspective view of the bottom unit 400.

[0016] 2 and 3, the configuration of camera unit 200 will be described. Lens barrel 201 includes a lens group such as a focus lens group (not shown), a lens holding member, and an imaging board on which an imaging element is mounted, and can capture an image in the direction of optical axis 101 of the imaging system.

[0017] Lens barrel 201 is fixed to lens barrel holding member 205 made of resin or the like. Elastic member 207 made of elastomer or the like is placed on the upper surface of lens barrel 201, and pressing member 206 presses elastic member 207 to be fixed to lens barrel holding member 205. Pressing member 206 is preferably made of sheet metal.

[0018] The lens drive board 209 is fixed to the upper surface of the pressing member 206 and controls the driving of the focus lenses of the lens barrel 201 and the like.

[0019] The external measurement AF unit 215 includes an AF sensor (not shown), a lens 215b, and an eccentric pin 215c that are mounted on a flexible printed circuit board 215a. The orientation of the external measurement AF unit 215 can be adjusted by rotating the eccentric pin 215c with a tool such as a screwdriver. The external measurement AF unit 215 is disposed outside the lens barrel 201. During product assembly or customer service, the orientation of the external measurement AF unit is adjusted to approximately align the optical axis 104 of the AF sensor with the optical axis 101 of the imaging system, and in this state, the external measurement AF unit 215 is fixed to the bottom of the lens barrel 201 with a fixing screw 215d.

[0020] The front camera case 202 has a window 202a at the bottom for allowing light to enter the AF sensor, and is fixed to the lens barrel holding member 205 and the pressing member 206 via a front camera case holding member 208 formed of resin or the like. In addition, a tally lamp board 210 and a tally lamp guide 211 are fixed to the upper part of the front camera case 202. An LED is mounted on the tally lamp board 210, and the light of the LED is guided to the tally lamp guide 211 and emitted to the outside, functioning as a tally lamp that informs the subject of the shooting state of the image capturing device 100.

[0021] First tilt shaft 212a is a solid part made of metal, and is fixed in a state of being radially fitted into tilt gear 213. Second tilt shaft 212b is a hollow part made of metal, and a cable (not shown) that transmits an output signal of the image pickup element, power for driving the lens, etc. is inserted into the hollow portion. Tilt gear 213 to which first tilt shaft 212a is fixed, and second tilt shaft 212b are fixed to lens barrel holding member 205 so that their central axes are coaxial.

[0022] Tilt rotation restricting member 214, which will be described in detail later, is a member that restricts the tilt rotation of camera unit 200 to a first tilt rotation range, and is fixed to tilt gear 213 by fixing screw 214a. Note that the first tilt rotation range is, for example, from −35 degrees to +105 degrees.

[0023] An upper camera case 203 having a semi-cylindrical portion 203a centered on the tilt axis 102 is fixed to a lens barrel holding member 205 and a front camera case holding member 208 from both side surfaces by fixing screws 203b.

[0024] Lower camera case 204, which has a semi-cylindrical portion 204a centered on tilt axis 102, is fixed to lens barrel holding member 205 from the bottom by fixing screws 204b, and covers fixing screws 203b of upper camera case 203 and external measurement AF unit 215. Note that front camera case 202, upper camera case 203, and lower camera case 204 are exterior members.

[0025] In camera unit 200 configured as described above, first tilt shaft 212a is inserted into first tilt bearing 302a, and second tilt shaft 212b is inserted into second tilt bearing 302b. Then, timing belt 304 is wound around tilt gear 213 and pinion gear 303c for tilt rotation, thereby enabling tilt rotation around tilt axis 102 with respect to pan unit 300.

[0026] Next, the configuration of the pan unit 300 will be described with reference to Fig. 4. The pan base 301 includes a first pan base 301a, a second pan base 301b, and a third pan base 301c, which are made of resin, metal, or the like. In this embodiment, the pan base 301 includes three components, but may be formed integrally, that is, formed from a single component. The pan base 301 also serves as a base member that supports the camera unit 200 so that it can tilt and rotate.

[0027] First pan base 301a is provided with convex shape 301d against which tilt rotation restricting member 214 abuts during tilt rotation of camera unit 200. This physically restricts the tilt rotation of camera unit 200 to a first tilt rotation range (-35 degrees to +105 degrees in this embodiment). In addition, because tilt rotation restricting member 214 is formed from sheet metal, the springiness of the bent portion reduces impact noise when tilt rotation restricting member 214 abuts against convex shape 301d of first pan base 301a.

[0028] A video board 305 on which a video engine for processing an output signal from the imaging element is mounted is fixed to the second pan base 301b. The video board 305 is connected to the imaging board, the lens drive board 209, and the control board 407 described later by cables (not shown).

[0029] The outer rings of first tilt bearing 302a and second tilt bearing 302b are fitted into and supported by stepped through holes in first pan base 301a and second pan base 301b, respectively.

[0030] The motor unit 303 includes a stepping motor 303a, a motor holding member 303b, and a pinion gear 303c. The stepping motor 303a is fixed to the motor holding member 303b, and the pinion gear 303c is press-fitted onto the motor shaft. The motor holding member 303b includes two metal plates and an elastic member such as rubber sandwiched between the metal plates, and the elastic member reduces vibration and noise when the stepping motor 303a is driven.

[0031] In this embodiment, the same motor unit 303 is used for both pan rotation and tilt rotation. The motor unit 303 for pan rotation has a motor holding member 303b fixed to the third pan base 301c, and the motor unit 303 for tilt rotation has a motor holding member 303b fixed to the first pan base 301a.

[0032] A timing belt 304 is wound around the pinion gear 303c for pan rotation and a pan gear 403 (described later), and around the pinion gear 303c for tilt rotation and the tilt gear 213 described above.

[0033] Further, an idler unit 308 is disposed between the pinion gear 303c for pan rotation and the pan gear 403, and between the pinion gear 303c for tilt rotation and the tilt gear 213. The idler unit 308 includes a support base 308a formed of sheet metal or the like, an idler shaft 308b, and an idler bearing 308c. The idler shaft 308b is fixed to the support base 308a, and the idler bearing 308c is inserted and assembled into the idler shaft 308b. The idler bearing 308c is disposed between the pinion gear 303c for pan rotation and the pan gear 403, and between the pinion gear 303c for tilt rotation and the tilt gear 213, so as to face each other with the timing belt 304 sandwiched between them from the outside. This allows the number of meshing teeth between the pinion gear 303c and the timing belt 304 to be increased.

[0034] The inner case 306 is fixed to the first pan base 301a and the second pan base 301b, and has a substantially semicircular cutout 306a. In the first tilt rotation range (-35 degrees to +105 degrees), at least a part of the semicylindrical portion 204a of the lower camera case 204 is located inside the substantially semicircular cutout 306a. The outer case 307 is fixed to the third pan base 301c and the inner case 306 by a fixing screw 307a. In other words, the inner case 306 and the outer case 307 are exterior members that cover the pan base 301, and can be said to be a base case.

[0035] In the pan unit 300 configured as above, the third pan base 301c is fixed to the pan base holding member 405. This allows the third pan base 301c to be pan-rotated around the pan axis 103 together with the pan base holding member 405 with respect to the fixed portion of the bottom unit 400, as will be described in detail later.

[0036] Next, the configuration of the bottom unit 400 will be described with reference to Fig. 5. The outer races of the first pan bearing 404a and the second pan bearing 404b are fitted into the stepped through hole of the pan gear 403 and supported therein.

[0037] Pan shaft 402 is a hollow part made of metal, and a cable (not shown) for transmitting video signals, power, etc. is inserted into the hollow part. Pan shaft 402 also has flange portion 402a, and is inserted into the inner rings of first pan bearing 404a and second pan bearing 404b until flange portion 402a abuts against the end face of the inner ring of second pan bearing 404b. Pan shaft 402 also has male thread portion 402b on the opposite side of flange portion 402a.

[0038] Pan shaft fixing nut 406 has female thread 406a formed on its inner diameter portion, which screws into male thread 402b. Pan base holding member 405 is radially fitted onto pan shaft 402, and pan shaft fixing nut 406 is tightened to pan shaft 402 with a specified rotational torque, whereby the end face is fixed at a position where it abuts against the end face of the inner ring of first pan bearing 404a. Furthermore, pan shaft fixing nut 406 is tightened to pan shaft 402 with a specified rotational torque, whereby a specified amount of pressure is applied to first pan bearing 404a and second pan bearing 404b.

[0039] The bottom case 401 is a fixed part that does not rotate, and is made of metal such as die-cast metal. A pan gear 403 is fixed to the bottom case 401, and a timing belt 304 is wound around the pan gear 403 and a pinion gear 303c for pan rotation. With this configuration, the pan shaft 402, the pan base holding member 405, and the pan shaft fixing nut 406 are capable of pan rotation around the pan axis 103 relative to the bottom case 401 and the pan gear 403, which are fixed parts. Therefore, as described above, the pan unit 300 fixed to the pan base holding member 405 via the third pan base 301c is capable of pan rotation around the pan axis 103 relative to the fixed part of the bottom unit 400.

[0040] The control board 407 has a network engine for performing network communication, an SDI output terminal, an HDMI (registered trademark) terminal, a USB terminal, a LAN terminal, and the like mounted thereon, and is fixed to the bottom case 401 .

[0041] A power supply circuit, a power supply input terminal, an audio input terminal, etc. are mounted on the power supply board 408 , and the power supply board 408 is fixed to the bottom case 401 .

[0042] The rear plate 409 has a notch shape that matches the shape of the terminals mounted on the control board 407 and the power board 408 , and is fixed to the bottom case 401 .

[0043] The bottom plate 410 is fixed to the bottom case 401, and the imaging device 100 can be installed on a ceiling or a wall via the bottom plate 410 by using fixing screws (not shown).

[0044] Next, the tamper resistance of the external measurement AF unit 215 will be described. As described above, in the imaging device 100, the tilt rotation range of the camera unit 200 is restricted to a first tilt rotation range (-35 degrees to +105 degrees) by the tilt rotation restricting member 214. In the first tilt rotation range, the lower camera case 204 covering the external measurement AF unit 215 cannot be removed even if an attempt is made to remove it. This is because at least a part of the semi-cylindrical part 204a of the lower camera case 204 is located inside the approximately semicircular cutout part 306a of the inner case 306 and engages with the cutout part 306a, causing interference between the two. As a result, the user cannot easily move the eccentric pin 215c of the external measurement AF unit 215 from the outside, ensuring tamper resistance.

[0045] Next, a method for adjusting the orientation of the external measurement AF unit 215 in customer service will be described with reference to Figs. 6 to 10. Fig. 6 is a perspective view of the imaging device 100 in a state of adjustment procedure 1 of the orientation of the external measurement AF unit 215. Fig. 7 is a perspective view of the imaging device 100 in a state of adjustment procedure 2 of the orientation of the external measurement AF unit 215. Fig. 8 is a perspective view of the imaging device 100 in a state of adjustment procedure 3 of the orientation of the external measurement AF unit 215. Fig. 9 is a perspective view of the imaging device 100 in a state of adjustment procedure 4 of the orientation of the external measurement AF unit 215. Fig. 10 is a diagram showing a second tilt rotation range of the camera unit 200.

[0046] First, as shown in FIG. 6, the tilt angle is set to approximately +90 degrees, and fixing screw 307a is loosened and outer case 307 is removed, thereby exposing tilt rotation restricting member 214 to the outside.

[0047] Next, as shown in FIG. 7, the tilt angle is set to about +20 degrees, and the fixing screw 214a is loosened to remove the tilt rotation restricting member 214. By removing the tilt rotation restricting member 214, the tilt rotation restricting member 214 does not abut against the convex shape 301d provided on the first pan base 301a, and the camera unit 200 becomes tilt rotatable up to the second tilt rotation range. In this embodiment, as shown in FIG. 10, the camera unit 200 becomes tilt rotatable up to the point where it abuts against the inner case 306. FIG. 10(A) shows a state where the tilt angle is −40 degrees, and FIG. 10(B) shows a state where the tilt angle is +195 degrees. In this embodiment, the second tilt rotation range is, for example, −40 degrees to −35 degrees and +105 degrees to +195 degrees. The second tilt rotation range is a tilt rotation range that does not overlap with the first tilt rotation range, among the range in which camera unit 200 can tilt rotate by removing tilt rotation restricting member 214.

[0048] Next, in the second tilt rotation range, at an angle where the installation surface and the optical axis 101 of the imaging system are substantially parallel, the entire semi-cylindrical portion 204a of the lower camera case 204 is located outside the substantially semi-circular cutout portion 306a of the inner case 306. Therefore, as shown in FIG. 8, the lower camera case 204 can be removed by loosening the fixing screw 204b. This figure shows a state where the tilt angle is +180 degrees. When the lower camera case 204 is removed, the external measurement AF unit 215 is exposed to the outside. Also, at a tilt angle of +180 degrees within the second tilt rotation range, the external measurement AF unit 215 is disposed on the opposite side of the pan base 301 with respect to the optical axis 101 of the imaging system. In other words, at an angle where the installation surface and the optical axis 101 of the imaging system are substantially parallel, the pan base 301 is disposed on one side and the external measurement AF unit 215 is disposed on the other side with respect to the optical axis 101 of the imaging system. This makes it possible to adjust the external measurement AF unit 215.

[0049] Finally, as shown in FIG. 9, the tilt angle fixing pin 501 is inserted through the tilt angle fixing hole 213a (shown in FIG. 3) provided in the tilt gear 213 and the tilt angle fixing hole 301e (shown in FIG. 4) provided in the first pan base 301a. Then, the pan angle fixing pin 502 is inserted through the pan angle fixing hole 401a (shown in FIG. 5) provided in the bottom case 401 and the pan angle fixing hole 301f (shown in FIG. 4) provided in the third pan base 301c. This makes it possible to fix the camera unit 200 at a predetermined rotation angle. Here, as an example, it is assumed that the camera unit 200 can be fixed at a pan angle of +0 degrees and a tilt angle of +180 degrees. In this state, the camera unit 200 can be directly faced to the chart 503 installed on the wall surface, and the eccentric pin 215c of the external measurement AF unit 215 is exposed at the top, making it easy to rotate the eccentric pin 215c with the adjustment tool 504. Therefore, since it is preferable that tilt angle +180 is included within the second tilt rotation range, it is preferable that the first tilt rotation range has a maximum tilt angle less than 180 degrees, and the second tilt rotation range has a maximum tilt angle of 180 degrees or more.

[0050] In this embodiment, the tilt rotation restricting member is provided on the camera unit, and the pan unit is provided with a convex shape against which the tilt rotation restricting member abuts. However, the tilt rotation restricting member may be provided on the pan unit, and the camera unit may be provided with a convex shape against which the tilt rotation restricting member abuts.

[0051] The above-described configuration makes it difficult for users to move the eccentric pin for adjusting the orientation of the external AF unit, providing excellent tamper resistance. On the other hand, customer service can easily adjust the orientation of the external AF unit while still allowing image output without the need to remove many parts.

[0052] <Other embodiments> Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, when the installation surface is a wall surface, the above-mentioned embodiments can be applied by replacing the tilt direction with the pan direction and the pan direction with the tilt direction. In this case, the camera unit 200 is made to face the chart installed on the ceiling surface or floor surface. [Explanation of symbols]

[0053] 100 Imaging device 200 Camera unit 201 Lens barrel 204 Lower Camera Case 214 Tilt rotation restriction member 215 External AF unit 301 Panbase 306 Inner case 307 Outer case 400 Bottom Unit

Claims

1. a camera unit including a lens barrel, an autofocus unit disposed outside the lens barrel, a lens barrel holding member that holds the lens barrel, and a camera case that engages with the lens barrel holding member and covers the autofocus unit; a base member that supports the camera unit rotatably around a rotation axis; A base case covering the base member; a restricting member that restricts rotation of the camera unit to a first rotation range, When the camera unit is in the first rotation range, the camera case engages with the lens barrel holding member, When the regulating member is removed and the camera unit is in a second rotation range, the camera case is removable from the lens barrel holding member.

1. An imaging device comprising:

2. The base member supports the camera unit so as to be tiltable and rotatable.

2. The imaging device according to claim 1 .

3. When the camera unit is in the second rotation range, the autofocus unit is disposed on the opposite side of the base member with respect to the optical axis of the lens barrel.

3. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

4. When the camera case is removed, the autofocus unit is exposed to the outside.

4. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

5. When the camera unit is in the first rotation range, the camera case cannot be removed from the lens barrel holding member.

5. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

6. the camera case has a semi-cylindrical portion, The base case has a substantially semicircular cutout portion, In the first rotation range, at least a part of the semi-cylindrical portion of the camera case is positioned inside the cutout portion of the base case and engages with the cutout portion, In the second rotation range, the entire semi-cylindrical portion of the camera case is positioned outside the cutout portion of the base case.

6. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

7. A tally lamp is disposed on the opposite side of the autofocus unit with respect to the lens barrel.

7. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

8. The regulating member is formed of sheet metal.

8. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

9. The camera unit and the base member have holes into which a pin can be inserted to fix the camera unit at a predetermined rotation angle within the second rotation range.

9. The imaging device according to claim 1, wherein the first and second lenses are arranged in a first direction.

10. The predetermined rotation angle is a rotation angle at which the optical axis of the lens barrel becomes substantially parallel to the installation surface.

10. The imaging device according to claim 9.

11. The predetermined rotation angle is a tilt angle of 180 degrees.

11. The imaging device according to claim 9, wherein the first and second lenses are arranged in a first direction.

12. The first rotation range has a maximum tilt angle of less than 180 degrees, and the second rotation range has a maximum tilt angle of 180 degrees or more.

12. The imaging device according to claim 1, wherein the imaging device is a single lens.

13. The autofocus unit includes an autofocus sensor that is different from the image sensor included in the camera unit.

13. The imaging device according to claim 1, wherein the imaging device is a single lens.

Images