JP2008033220A - Imaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent displacement of a lens after a lens adjustment by facilitating the lens adjustment of a camera that performs imaging via a cover member. <P>SOLUTION: A monitor camera 100 has the camera disposed in the light transmissive cover member 102 of a curved shape, and can adjust the focal distance of the lens. In the monitor camera 100, an operation cover 104 that receives the instruction operation of adjusting the focal distance of the lens is disposed on the external part of the cover member 102. The lens can be adjusted while the camera is housed in the cover member 102. In addition, the monitor camera 100 is provided with a shield plate 501 disposed in the position to disable the instruction operation to the operation part 104 after the lens adjustment. This prevents the operation to the operation part 104 after the lens adjustment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an imaging apparatus such as a surveillance camera.

  Conventionally, for an imaging device such as a surveillance camera installed on a ceiling or a wall, for example, depending on the distance to the imaging target due to the difference in the size of the room in which the imaging device is installed, Some have an imaging mechanism capable of adjusting the zoom. In such an imaging device, what is called lens adjustment that adjusts the focus and zoom of the lens so that the object to be imaged is in focus is performed by remote operation from the outside, and operations provided on the imaging device body There are things that are done manually by directly touching the part.

  In an image pickup apparatus in which an operation unit is provided in the image pickup apparatus main body, the operation unit and the image pickup mechanism are accommodated inside a dome-shaped cover member, for example, in order to prevent lens misalignment due to an unexpected erroneous operation or mischief There is something like that. In an image pickup apparatus (hereinafter referred to as “dome-type image pickup apparatus”) in which an operation unit and an image pickup mechanism are housed in a dome-type cover member, it is necessary to expose the operation unit during lens adjustment.

  As a technique for exposing the operation unit, specifically, conventionally, for example, the apparatus main body and the cover member are connected via a bayonet mechanism, or the apparatus main body and the cover member are connected via a hinge mechanism. There is a technique in which a cover member is detachable from the apparatus main body (see, for example, Patent Documents 1 and 2 below).

  In the dome-type imaging device, since the cover member is curved, the cover member itself exhibits the same function as the lens. As a result, when the focal length of the lens is adjusted without the cover member, the image focused on the image sensor with the cover member attached is out of focus. On the other hand, in the conventional dome-type imaging device, since the instruction operation to the operation unit cannot be performed in a state where the cover member is mounted, the adjustment of the focal length of the lens must be performed with the cover member removed.

  For this reason, in a conventional imaging apparatus including a dome-shaped cover member, for example, the cover member is held in front of the lens, and the focal length of the lens is reproduced while reproducing the state in which the cover member is mounted in a pseudo manner. It is adjusted. Conventionally, for example, there is a technique that enables a remote operation and a hand operation by providing a hand operation unit for controlling a setting state of optical components included in the monitor camera in the body of the surveillance camera that can be operated remotely. (For example, see Patent Document 3 below.)

JP 2006-74657 A JP 2004-248153 A JP 2004-279911 A

  However, as described above, in the conventional techniques including Patent Documents 1 and 2, there is a problem that it is troublesome to adjust the lens while holding the cover member in front of the lens. In addition, with the recent miniaturization of surveillance cameras, the work space that can be secured inside the cover member for lens adjustment has been reduced, and there has been a problem that workability may be reduced.

  Furthermore, as described above, in the conventional technique, when the lens adjustment is performed again (hereinafter referred to as “lens readjustment”), the cover member is removed from the apparatus main body every time the lens readjustment is performed, and the removed cover member is removed. There was a problem that it was troublesome to adjust the lens while holding it in front of the lens.

  In addition, as described above, according to the conventional technology, the cover member must be removed from the apparatus main body when adjusting the lens. Therefore, depending on the handling method and position of the removed cover member during the lens adjustment operation, it may interfere with the lens adjustment. There is a problem that there is a concern that the lens may be damaged or the lens may be damaged.

  Moreover, in the technique described in Patent Document 3 described above, it is unexpected to shoot through a cover member having a shape that exhibits the same function as the lens, and after the imaging mechanism is accommodated inside the cover member. It is not considered to secure a working space for lens adjustment.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an imaging apparatus that can easily adjust the lens of an imaging mechanism that captures an image through a cover member in order to eliminate the above-described problems caused by the prior art.

  Furthermore, an object of the present invention is to provide an image pickup apparatus that can prevent lens position shift after lens adjustment.

  An imaging apparatus according to the present invention includes a lens that allows external light to enter a photoelectric conversion element for imaging, an imaging mechanism capable of adjusting the lens position, a support member that supports the imaging mechanism, and an attachment to the support member A cover member that covers the imaging mechanism in a state in which the image pickup mechanism is formed and has light transmissivity, and an operation unit that is provided at a position of the support member that is not covered by the cover member and receives an instruction operation for adjusting the lens position; It is characterized by providing.

  According to the present invention, since the lens adjustment can be performed in a state where the imaging mechanism is housed in the cover member, the lens adjustment of the imaging mechanism for imaging through the cover member can be easily performed. In addition, according to the present invention, a sufficient space for an instruction operation to the operation unit can be secured, so that lens adjustment can be easily performed.

  The imaging apparatus according to the present invention further includes a shielding member provided at a position where the instruction operation to the operation unit is interrupted after the focal length of the lens is adjusted.

  According to the present invention, by providing the shielding member after the lens adjustment, it is possible to prevent the operation of the operation unit after the lens adjustment and to prevent the lens from being displaced after the lens adjustment.

  In the imaging apparatus according to the present invention, at least a part of the cover member is a curved surface.

  According to the present invention, even when the cover member acts as a lens, the lens adjustment of the imaging mechanism for imaging through the cover member can be easily performed so that the image captured through the cover member is not distorted. Can do.

  In the imaging apparatus according to the present invention, the shielding member is provided so as not to be detached from the apparatus main body.

  According to the present invention, after the lens adjustment, the shielding member cannot be removed from the apparatus main body and the lens readjustment cannot be performed, so that it is possible to reliably prevent the lens from being displaced.

  In the imaging apparatus according to the present invention, the shielding member is detachably provided to the apparatus main body.

  According to this invention, even after the lens adjustment is completed, it is possible to remove the shielding member from the apparatus main body and perform the lens readjustment. Therefore, even when the distance to the imaging target changes, the same imaging apparatus can be repeatedly used. Can do.

  In addition, the imaging apparatus according to the present invention includes a releasable lock mechanism that prevents the shielding member from being detached from the apparatus main body.

  According to the present invention, since the shielding member can be prevented from being carelessly detached from the apparatus main body, even when the shielding member is detachable from the apparatus main body, it is possible to reliably prevent the lens from being displaced. Can do.

  In the imaging apparatus according to the present invention, the shielding member is provided integrally with the cover member.

  According to this invention, since the cover member and the shielding member are integrated, it is not necessary to prepare a separate shielding member, and the operation to the operation unit after the lens adjustment is prevented, and the lens after the lens adjustment is performed. It is possible to prevent the lens from being displaced.

  In the imaging apparatus according to the present invention, the cover member is rotatably attached to the support member, and the operation unit is exposed or shielded by the shielding member when the cover member rotates. And

  According to this invention, the operation unit can be exposed or shielded by rotating the cover member with respect to the support member. Accordingly, the operation unit can be brought into an arbitrary state without removing the cover member by exposing the lens when adjusting the lens and shielding the lens after adjusting the lens. For this reason, lens adjustment can be easily performed.

  In the imaging apparatus according to the present invention, the cover member includes a fixing unit that restricts rotation with respect to the support member at a position where the operation unit is shielded.

  According to the present invention, by restricting the rotation of the support member at the position where the cover member shields the operation portion, the operation of the operation portion after the lens adjustment is prevented and the lens is not displaced after the lens adjustment. can do.

  In the imaging apparatus according to the present invention, the cover member includes a fixing unit that restricts rotation with respect to the support member at a position where the operation unit is exposed.

  According to the present invention, by restricting the rotation of the cover member with respect to the support member at the position where the cover member exposes the operation portion, unnecessary rotation of the cover member when performing lens adjustment can be prevented, and workability can be improved. .

  In the imaging apparatus according to the present invention, the support member includes a mark indicating that the cover member has rotated to a predetermined position with respect to the support member.

  According to the present invention, it is possible to confirm the tightness of the cover member by a mark indicating that the cover member has been rotated to a predetermined position, and to prevent the cover member from being incompletely fixed to the support member. it can.

  According to the imaging device of the present invention, it is possible to easily adjust the lens of the imaging mechanism that captures an image through the curved cover member, and to prevent the lens from being displaced after the lens adjustment.

  Exemplary embodiments of an imaging apparatus according to the present invention will be described below in detail with reference to the accompanying drawings. Embodiments 1 and 2 shown below are examples in which the imaging apparatus according to the present invention is applied to a surveillance camera.

(Embodiment 1)
FIG. 1 is a perspective view showing a surveillance camera according to the first embodiment (part 1), FIG. 2 is a side view showing the surveillance camera according to the first embodiment (part 1), and FIG. 3 shows the surveillance camera according to the first embodiment. It is a front view (the 1). As shown in FIGS. 1 to 3, the monitoring camera 100 according to the first embodiment includes a base unit 101 that holds a camera (see reference numeral 402 in FIG. 4) and a cover that is attached to the base unit 101. Member 102. The monitoring camera 100 is installed by embedding the base unit 101 in a wall or ceiling.

  The cover member 102 has a substantially hemispherical (dome-shaped) shape. The cover member 102 is made of an optically transparent material. The cover member 102 may be formed of a colorless and transparent material, or may be formed of a material colored by mixing a black coloring material or the like. By forming the cover member 102 with a colored material, the inside of the cover member 102 can be made difficult to visually recognize from the outside of the cover member 102.

  The cover member 102 fits the peripheral portion of the cover member 102 into a groove (not shown) formed in the rib 103 provided in the base portion 101, and a projection (not shown) provided in a part of the peripheral portion is inserted into the groove. It is attached to the base part 101 by engaging with an engaging part formed in part. In a state in which the protrusion provided on the cover member 102 and the engaging portion formed on a part of the groove are engaged, the cover member 102 is the base portion in the facing direction of the base portion 101 and the cover member 102. The movement in the direction away from 101 is restricted, whereby the cover member 102 can be prevented from being detached from the base 101.

  In the base unit 101, an operation unit 104 that receives an instruction operation of an operator for adjusting the focus and zoom of a lens included in the camera (hereinafter referred to as “lens adjustment”) is provided on the end surface on the front side. Yes. The operation unit 104 is provided on the base unit 101 at a position not covered by the cover member 102. The operation unit 104 includes a plurality of operation buttons for adjusting the focus and zoom of the lens.

  FIG. 4 is a perspective view (part 2) illustrating the monitoring camera 100 according to the first embodiment. FIG. 4 shows the monitoring camera 100 with the cover member 102 removed from the base 101. As shown in FIG. 4, a camera 402 including a lens 401 that receives external light and an image sensor (not shown) that receives external light that enters the lens 401 is provided inside the base 101. ing.

  The imaging element is an element that outputs an electrical signal corresponding to the intensity of incident light, and is specifically realized by, for example, a CCD (Charge Coupled Device). In the first embodiment, the apparatus main body is realized by the base unit 101 and the camera 402.

  The camera 402 is provided at a position where the entire periphery is covered by the base portion 101 and the cover member 102 in a state where the cover member 102 is attached to the base portion 101. Although not shown in FIG. 4, the camera 402 moves the lens 401 to the light of the camera 402 according to a control circuit that generates image data based on an electrical signal output from the image sensor or an instruction operation received by the operation unit 104. A moving means for moving in the axial direction is provided.

  The camera 402 is sandwiched between a pair of support members 403 fixed to the base unit 101, and is provided so as to be rotatable around an axis connecting the connecting portions 404 between the camera 402 and the support members 403. The support member 403 is provided on the inner side of the base part 101 and is provided on a rotating plate (not shown) that can rotate around the axis of the base part 101. The camera 402 rotates about the axis connecting the connecting portions 404 of the camera 402 and the support members 403, and rotates about the axis of the base 101 with the rotation of the rotating plate. A hemispherical range based on the end surface on the cover member 102 side of the portion 101 can be imaged.

  FIG. 5 is a perspective view showing the surveillance camera of the first embodiment (part 3), FIG. 6 is a side view showing the surveillance camera of the first embodiment (part 2), and FIG. 7 shows the surveillance camera of the first embodiment. It is a front view (the 2). 5 to 7 show a state where the lens adjustment of the camera 402 is finished and the surveillance camera 100 is actually used. As shown in FIGS. 5 to 7, a shielding plate 501 as a shielding member is attached to the monitoring camera 100 in a state of actual use. The shielding plate 501 is attached to the base 101 at a position where the instruction operation on the operation unit 104 is interrupted.

  The shielding plate 501 is a plate-like member having a certain thickness or hardness so that the operation button is not operated even when pressed from the outside, and is attached so that it cannot be easily detached from the base 101. Yes. Although illustration is omitted, specifically, for example, the shielding plate 501 is fixed to the base 101 by using an adhesive or an adhesive tape. In this embodiment, the plate-shaped shielding plate 501 is provided as the shielding member, but the present invention is not limited to this. For example, the adhesive tape itself may be used as a shielding member. In this case, an adhesive tape having a low flexibility or a thickness is used so that the instruction operation to the operation unit 104 via the adhesive tape can be interrupted.

  Further, the shielding plate 501 may be detachably attached to the base unit 101. Although illustration is omitted, specifically, for example, by attaching a screw to the base portion 101 via the shielding plate 501, the shielding plate 501 can be detachably attached to the base portion 101. it can. In this case, the shielding plate 501 can be detached from the base 101 by loosening the screw.

  Although illustration is omitted, specifically, for example, when the shielding plate 501 faces the operation unit 104 between the base unit 101 and the shielding plate 501, the base unit 101 is shielded. The shield plate 501 can be detachably attached to the base portion 101 by providing a pair of claw members that mesh so as to fix the plate 501. In this case, the shielding plate 501 can be detached from the base portion 101 by elastically deforming one of the claw members and releasing the engagement with the other claw member.

  When the shielding plate 501 is detachably attached to the base portion 101, a releasable lock mechanism that prevents the shielding plate 501 from being detached from the base portion 101 may be provided. Although not shown, specifically, the lock mechanism can be realized by, for example, a screw including a head having a shape that can be loosened (tightened) only when a dedicated special tool is used.

  When adjusting the lens of the monitoring camera 100, the worker first points the lens 401 in the direction in which the camera 402 captures an image. At this time, by operating each button on the operation unit 104 with the cover member 102 attached, the lens 401 may be directed in the direction in which the camera 402 captures an image, or the operator removes the cover member 102 while the camera is in the camera. The lens 401 may be directed in the direction in which the camera 402 captures an image by holding the hand 402 and rotating it.

  Subsequently, the operator operates the buttons on the operation unit 104 with the cover member 102 attached to the base unit 101 to adjust the focus and zoom of the lens 401. Then, the operator attaches the shielding plate 501 to the base unit 101 in a state where the imaging target is in focus, and ends the lens adjustment.

  As described above, according to the monitoring camera 100 of the first embodiment, the lens can be adjusted while the camera 402 is housed inside the cover member 102, so that the operator can image through the cover member 102. The lens of the camera 402 can be easily adjusted.

  Further, according to the monitoring camera 100 of the first embodiment, since the operation unit 104 is provided outside the base unit 101 and the cover member 102, it is possible to ensure a sufficient space for an instruction operation on the operation unit 104. Therefore, the operator can easily adjust the lens.

  According to the monitoring camera 100 of the first embodiment, by providing the shielding plate 501 after the lens adjustment, the operation to the operation unit 104 after the lens adjustment is prevented, and the positional deviation of the lens 401 after the lens adjustment is prevented. Can be prevented.

  Further, according to the surveillance camera 100 of the first embodiment, even when the cover member 102 acts as a lens, an image captured through the curved cover member 102 does not distort, for example, like a dome shape. In addition, it is possible to easily adjust the lens of the camera 402 that captures an image through the cover member 102.

  Further, according to the monitoring camera 100 of the first embodiment, the shielding plate 501 is attached to the base portion 101 so that it cannot be easily detached from the base portion 101, so that after the lens adjustment, the shielding plate 501 is removed from the base portion 101. Since the lens readjustment cannot be performed, the positional deviation of the lens 401 can be reliably prevented.

In addition, according to the monitoring camera 100 of the first embodiment, the shielding plate 501 can be attached to and detached from the base portion 101, so that the shielding plate 501 is removed from the base portion 101 even after the lens adjustment is completed. Since the lens can be readjusted, the same surveillance camera 100 can be used repeatedly even when the distance to the imaging target changes.

  Further, according to the monitoring camera 100 of the first embodiment, by providing a lock mechanism that prevents the shielding plate 501 from being detached, the shielding plate 501 is inadvertently removed from the base 101 while enabling lens readjustment. Since it is possible to prevent detachment, it is possible to reliably prevent displacement of the lens 401 due to external impact or mischief.

(Embodiment 2)
Hereinafter, a preferred embodiment 2 of an imaging apparatus according to the present invention will be described in detail with reference to the accompanying drawings. In the first embodiment, an example in which the shielding plate 501 and the cover member 102 are provided as separate bodies has been described. However, in the second embodiment, the shielding member and the cover member are provided integrally. It is an example. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 8: is a perspective view (the 1) which shows the surveillance camera of Embodiment 2 concerning this invention. As shown in FIG. 8, the monitoring camera 800 according to the second embodiment of the present invention includes a base 801, a cover member 802, a shielding member 803, and a notch 804. Surveillance camera 800 is installed by embedding base 801 in a ceiling, a wall, or the like, similarly to surveillance camera 100 of the first embodiment.

  FIG. 9: is a perspective view (the 2) which shows the surveillance camera of Embodiment 2 concerning this invention. FIG. 9 shows the monitoring camera 800 with the cover member 802 removed from the base portion 801. As shown in FIG. 9, the base portion 801 has a cylindrical shape having an accommodation space inside, and holds the camera 402. In FIG. 9, on the upper surface of the base portion 801, that is, the surface facing the cover member 802, an operation portion 104 including a plurality of operation buttons, a fixed position mark 901, and stopper holes 902 and 903 are provided. Similarly, on the surface of the base portion 801 facing the cover member 802, engaging portions 801a and 801b are provided along the peripheral edge portion of the accommodating space inside the base portion 801. Further, a ring member 904 is provided at a predetermined interval in a direction away from the cover member 802 from the engagement portion 801a and the engagement portion 801b.

  The cover member 802 has a hemispherical shape (dome shape) and is made of an optically light-transmitting material. The cover member 802 may be formed of a colorless and transparent material, or may be formed of a material colored by mixing a black coloring material. The cover member 802 can be made difficult to visually recognize the inside of the cover member 802 from the outside of the cover member 802 by being formed of a colored material.

  The shielding member 803 is a circular plate member provided on the end surface of the cover member 802 on the base portion 801 side so as to face the base portion 801 and having a diameter equal to the diameter of the base portion 801. The shielding member 803 has a certain thickness and hardness so that the operation unit 104 cannot be operated from the outside. Further, the shielding member 803 is partially cut off along the peripheral edge portion, and a notch 804 is provided.

  FIG. 10 is a perspective view showing the cover member according to the second embodiment of the present invention. An engaging portion 803 a, an engaging portion 803 b, a slit 1001, and a stopper 1002 are provided on the surface of the shielding member 803 facing the base portion 801. When the operation unit 104 described above is shielded by the shielding member 803, the convex portions of the various operation buttons of the operation unit 104 are positioned in the slit 1001. The bottom surface of the shielding member 803 is in close contact.

  The stopper 1002 is a protrusion having a certain degree of protrusion. Further, for example, a spring is provided in the stopper 1002, and the stopper 1002 is mechanically connected to the stopper release button so that it is accommodated in the shielding member 803 when the stopper release button is pressed by an operator or the like. May be. Further, the stopper 1002 may be provided on the base portion 801 side, and the stopper holes 902 and 903 may be provided on the shielding member 803 side.

  Further, as described above, the engaging portions 801 a and 801 b are provided along the peripheral edge portion of the accommodation space inside the base portion 801. The engaging portions 801a and 801b have different shapes, and similarly, the engaging portions 803a and 803b have different shapes. In a state in which the cover member 802 is mounted on the base portion 801, the engaging portions 803a and 803b are engaged with a rail (not shown) formed by the engaging portions 801a and 801b of the base portion 801 and the ring material 904. Are combined.

  The base portion 801 and the cover member 802 are grooves that are spaces formed when the respective engaging portions come to predetermined positions, that is, the engaging portion 803a is sandwiched between the two engaging portions 801b. Except for the case where the position coincides with A, the movement of the cover member 802 in the direction in which the base member 801 and the cover member 802 face each other in the direction away from the base member 801 is restricted. Thereby, detachment | leave from the base part 801 of the cover member 802 can be prevented.

  Next, for example, an operation procedure for lens adjustment in the surveillance camera 800 installed on the ceiling or the like will be described. First, the operator points the lens 401 in the direction in which the camera 402 captures an image. At this time, the operator may operate each operation button on the operation unit 104 with the cover member 802 attached to the base unit 801 to direct the lens 401 in the direction in which the camera 402 captures an image. The lens 401 may be directed in a direction in which the camera 402 captures an image by removing the cover member 802 from the base 801 and rotating the camera 402 by hand.

  Subsequently, the operator operates each operation button on the operation unit 104 in a state where the cover member 802 is attached to the base unit 801. For example, when the cover member 802 is fixed to the base portion 801 with the notch 804 on the fixed position mark 901 as shown in FIG. 8, the cover member 802 is attached to the base portion 801. In order to operate the operation unit 104 in such a state, the operator rotates the cover member 802 relative to the base unit 801. The stopper 1002 slips with respect to the stopper hole 903 when receiving a load exceeding a predetermined value. Then, the stopper 1002 fitted in the stopper hole 903 is released from the stopper hole 903, and the restriction of the rotation of the cover member 802 relative to the base portion 801 is released.

  As a result, the shielding member 803 is rotatable with respect to the base portion 801. Therefore, for example, the worker rotates the shielding member 803 counterclockwise in FIG. When the shielding member 803 is rotated counterclockwise, the cutout portion 804 on the shielding member 803 is displaced toward the operation unit 104.

  FIG. 11: is a perspective view (the 3) which shows the surveillance camera of Embodiment 2 concerning this invention. FIG. 11 shows the monitoring camera 800 in a state where the notch 804 is on the operation unit 104. In the monitoring camera 800, when the notch 804 is just on the operation unit 104, for example, the stopper 1002 fits into the stopper hole 902. Thereby, the rotation of the shielding member 803 relative to the base portion 801 is restricted, and the cutout portion 804 is fixed in a state on the operation portion 104. Then, the worker performs lens adjustment such as zoom and focus of the camera 402, for example.

  When the camera 402 is in focus with respect to the object to be imaged, the shielding member 803 is rotated clockwise until the notch 804 is on the upper surface of the fixed position mark 901. When the cutout portion 804 comes on the fixed position mark 901, the stopper 1002 is fitted into the stopper hole 902, and the rotation of the shielding member 803 with respect to the base portion 801 is restricted and fixed. An operator fixes the shielding member 803 to the base part 801, and complete | finishes an operation | work. When it is desired to remove the cover member 802 from the base portion 801, for example, when the cutout portion 804 is on the operation portion 104, the cover member 802 is further rotated counterclockwise, and the engaging portion 803a Can be removed by matching with the position of the groove A.

  As described above, according to the surveillance camera 800 of the second embodiment, since the cover member 802 and the shielding member 803 are integrated, it is necessary to prepare a separate shielding plate as in the first embodiment. In addition, convenience can be improved.

  Furthermore, according to the monitoring camera 800 of the second embodiment, by restricting the rotation of the cover member at a predetermined position, when the rotation is restricted on the fixed position mark 901, an unauthorized operation is prevented, When the rotation is restricted on the operation unit 104, workability can be improved. Furthermore, according to the monitoring camera 800 of the second embodiment, the presence of the fixed position mark 901 can confirm the degree of tightening of the cover member and prevent the cover member from being incompletely fixed.

  In the first and second embodiments, the surveillance camera that captures an image through a cover member having a three-dimensional curved surface such as a dome shape has been described. However, the cover member is limited to a shape having a three-dimensional curved surface. It is not a thing. Although illustration is omitted, for example, a shape having a two-dimensional curved surface such as a curved flat plate may be used. Moreover, although illustration is abbreviate | omitted, the cover member in which one part is made into the two-dimensional or three-dimensional curved surface may be sufficient.

  As described above, according to the surveillance cameras of the first and second embodiments, the lens adjustment work of the imaging mechanism provided inside the dome-shaped cover member is facilitated, and the focal length of the lens after the adjustment It is possible to prevent the deviation.

  As described above, the imaging apparatus according to the present invention is useful for an imaging apparatus that captures an image through a cover member, and is particularly suitable for a surveillance camera that captures an image through a cover member having a curved shape such as a dome shape. Yes.

FIG. 3 is a perspective view (No. 1) illustrating the surveillance camera according to the first embodiment. FIG. 3 is a side view (part 1) illustrating the surveillance camera according to the first embodiment. FIG. 3 is a front view (part 1) illustrating the surveillance camera according to the first embodiment. FIG. 3 is a perspective view (No. 2) illustrating the surveillance camera according to the first embodiment. FIG. 6 is a perspective view (No. 3) illustrating the surveillance camera according to the first embodiment. FIG. 6 is a side view (No. 2) illustrating the surveillance camera according to the first embodiment. FIG. 6 is a front view (No. 2) illustrating the surveillance camera according to the first embodiment. It is a perspective view (the 1) which shows the surveillance camera of Embodiment 2. FIG. It is a perspective view (the 2) which shows the surveillance camera of Embodiment 2. FIG. 6 is a perspective view showing a cover member according to a second embodiment. FIG. 6 is a perspective view (No. 3) illustrating the surveillance camera according to the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Surveillance camera 102 Cover member 104 Operation part 401 Lens 402 Camera 501 Shielding board 800 Surveillance camera 802 Cover member 803 Shielding member 804 Notch

Claims (11)

An imaging mechanism that includes a lens that allows external light to enter the photoelectric conversion element for imaging, and that can adjust the lens position;
A support member for supporting the imaging mechanism;
A cover member that covers the imaging mechanism in a state of being attached to the support member and has light transmittance;
An operation unit that is provided at a position that is not covered by the cover member so that the lens position can be adjusted in the support member, and that receives an instruction operation to adjust the lens position;
An imaging apparatus comprising:   The imaging apparatus according to claim 1, further comprising: a shielding member provided at a position where the instruction operation to the operation unit is interrupted after the lens position is adjusted.   The imaging apparatus according to claim 2, wherein at least a part of the cover member is a curved surface.   The imaging apparatus according to claim 2, wherein the shielding member is provided so as not to be detached from the apparatus main body.   The imaging apparatus according to claim 2, wherein the shielding member is detachably provided to the apparatus main body.   The imaging apparatus according to claim 5, further comprising a releasable lock mechanism that prevents the shielding member from being detached from the apparatus main body.   The imaging apparatus according to claim 2, wherein the shielding member is provided integrally with the cover member. The cover member is rotationally engaged with and attached to the support member,
The imaging device according to claim 7, wherein the operation unit is exposed or shielded by the shielding member when the cover member rotates.   The imaging apparatus according to claim 8, wherein the cover member includes a fixing unit that restricts rotation with respect to the support member at a position where the operation unit is shielded.   The imaging apparatus according to claim 8, wherein the cover member includes a fixing unit that restricts rotation with respect to the support member at a position where the operation unit is exposed.   The imaging device according to claim 9, wherein the support member includes a mark indicating that the cover member has rotated to a predetermined position with respect to the support member.

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