JPH08111798A - Three-direction monitoring image pickup camera device - Google Patents

Abstract

PURPOSE: To provide a camera device which can photograph scenes in a wide range by means of a single image pickup camera. CONSTITUTION: A case 18 has a front window 15 which makes a front scene incident on the image pickup lens 12 of an image pickup camera and the left and right windows 16 and 17 which make the left and right scenes incident on the lens 12 respectively. The 18 is placed at the front of an image pickup camera main body 11 and also includes the left and right mirrors which make the scenes received through the windows 16 and 17 incident on the main body 11 respectively. Thus a compact and light-weight camera device of such a constitution can monitor the (front and left/right) scenes in a wide range.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-direction monitoring and imaging camera device capable of monitoring (imaging) a scene in three directions, namely, a front direction and left and right sides, with a single imaging camera.

[0002]

2. Description of the Related Art For example, as a conventional image pickup camera device which is installed outdoors, indoors, or in a vehicle and can monitor (image) a scene in a wide range in front of and in the left and right sides of the field of view, for example, FIG. There is a structure as shown in FIG.

That is, in the conventional example shown in FIG. 1, the image pickup camera main body 1 is mounted on a rotary table 2 which can be rotated by remote control via a support body 3, and the rotary table 2 is mounted on the rotary table 2.
Is a camera device for displacing the direction of the lens unit 5 of the imaging camera body 1 to an expanded range by appropriately rotating the remote controlled line 4 to monitor the scene of the expanded range. In the conventional example shown in FIG. 2, three image pickup camera bodies 1A, 1B, 1C are installed so that the lens portions 5A, 5B, 5C of the image pickup camera bodies face the front and left and right sides, respectively. Imaging camera body 1A, 1B, 1
It is a camera device capable of simultaneously or individually monitoring front, left and right side scenes by an image pickup signal obtained by C.

[0004]

However, in the conventional example shown in FIG. 1, the rotary table 2 which is rotated by remote control is used.
This is because it is large and heavy, it is difficult to mount the turntable 2 on a vehicle with a small mounting space, and the appearance of the vehicle is significantly impaired. There was a problem that it would end up.

Further, in the conventional example shown in FIG. 2, since three image pickup camera bodies are used in combination, the entire image pickup camera device becomes large in size, and the price becomes very high, which is not practical. It was a thing.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the prior art, and makes it possible to monitor the front, left and right both sides of a scene with one imaging camera. Therefore, it is another object of the present invention to provide an imaging camera device that is small and inexpensive and can monitor a wide field of view.

To further describe the present invention in detail, 1
A case with an imaging window that opens in both the front and left and right directions is attached to the main body of the camera, and inside this case, a reflector and front view that allow the left and right sides of the scene to enter the camera lens. It is an object of the present invention to provide a three-direction monitoring image pickup camera device that can be provided in a small size and at a low cost by providing a lens for making the light incident on the camera lens.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

Example 1 In FIGS. 3 to 5, reference numeral 11 denotes an image pickup lens 12, CC
An image pickup camera body having a D image receiving unit 13 and an image receiving processing unit 14, and at the front of the image pickup camera body 11, a front window 15 that opens to the front and a left window 16 and a right window 17 that open to the left and right sides. Is attached to the case 18, and a video signal circuit section 19 is attached to the rear of the imaging camera body 11.

Inside the case 18, the image pickup lens 12 of the image pickup camera main body 11 is located facing the front window 15, and the light incident from the left side window 16 is made incident on the image pickup lens 12. A left side first mirror 20 and a left side second mirror 21 are arranged, and a right side first mirror 22 and a right side second mirror 23 for causing the light incident from the right side window 17 to enter the imaging lens 12 are provided. It is arranged. 24 is the front window 1
A lens (glass plate) attached to the reference numeral 5, 25 and 26 are lenses (glass plates) attached to the left and right windows 16 and 17, 27 is a power supply line, and 28 is a video transmission line for transmitting a video signal to the monitor 29. Indicates.

The above is the configuration of the first embodiment, and its operation will be described next. The front view incident from the front window 15 provided in the case 18 is directly incident on the imaging lens 12, The front image is displayed on the central portion of the monitor 29. The left-side view incident from the left-side window 16 is reflected by the left-side first mirror 20 and then the left-side second mirror 21 and enters the imaging lens 12, and the left-side image is displayed on the left side of the monitor 29. Can be displayed. Similarly, the right-side scene incident from the right-side window 17 is reflected by the right-side first mirror 22 and then by the right-side second mirror 23 and enters the imaging lens 12, and the right-side image is on the right side of the monitor 29. Is displayed in.

Therefore, according to the present embodiment, one image pickup camera body 11 images the scenes in three directions of the front and left and right sides, and the images are displayed on the center part and the left and right sides of one monitor 29. It is possible to display images, and to monitor images in a wide range of the three directions at the same time, and by using one camera and monitor, it is possible to downsize the device and reduce the product cost.

Embodiment 2 Referring to FIGS. 6 to 9, in this embodiment, the left second mirror 21 and the right second mirror 23 in the first embodiment have a displaceable structure, and one image pickup camera body is provided. By 11, the view of only the front can be monitored, or the view can be switched to the view of the left and right sides to be monitored.

The structure of the second embodiment will be described below. The same structural parts as those of the first embodiment are designated by the same reference numerals as those of the first embodiment, and the structural description thereof will be omitted.

That is, the left side second mirror 21 and the right side second mirror 23 are rotatably supported by a vertical support shaft 30 as shown in FIG. 8, and the left side second mirror 21 and the right side second mirror 21 are rotated. The second mirror 23 is biased by the restoring force of the spring 31 in a direction in which they approach each other.

The left side second mirror 21 and the right side second mirror 23 are formed at the ends of the respective ratchet rods 34 which are pivotally supported by the respective support pins 33 provided on the fixed frame 32. It is connected to those ratchet rods 34 through pins (not shown) loosely fitted in the long holes 35.

A ratchet gear 36 formed on the ratchet rod 34 is meshed with a worm 38 via a worm wheel 37. The worm shaft 39 having the worm 38 is connected to a motor 41 via a transmission gear 40. 42 is a motor control unit, 43
Indicates a monitoring direction changeover switch.

The other structure is similar to that of the first embodiment.

The operation will be described next. As shown in FIG. 6, when the left side second mirror 21 and the right side second mirror 23 are close to each other, the left side incident from the left side window 16 is incident. The scene is reflected by the first mirror 20 on the left side and then on the second mirror 21 on the left side and is incident on the imaging lens 12, and the left image can be displayed on the left half part of the monitor 29. Similarly, the right-hand side scene incident from the right-side window 17 has a right-side first mirror 22 and a right-side second mirror 2 next.
The image on the right side is reflected on the image pickup lens 12 and is displayed on the right half portion of the monitor 29.

Therefore, according to this embodiment, one image pickup camera body 11 is used to monitor the left and right side views.
9 allows the images to be displayed at the same time.

Next, the monitoring direction changeover switch 43 is operated to drive the motor 41 shown in FIG. 8 to rotate the worm shaft 39, so that the left and right ratchet rods 34 meshing with the worm wheel 37 support the support pin 33 as a fulcrum. As the ratchet rod 34 rotates, the left second mirror 21 and the right second mirror 21 are rotated as shown in FIG.
The mirrors 23 rotate in directions away from each other, whereby the front window 15 is opened, and as a result, the front scene incident from the front window 15 is directly incident on the imaging lens 12 and the entire surface of the monitor 29. The front image is displayed.

When it is desired to display a left-right scene, the motor 41 which operates the monitoring direction changeover switch 43 is rotated in the reverse direction so that the left second mirror 21 and the right second mirror 23 are positioned as shown in FIG. Restored to the left and right windows 16,
The scene incident from 17 is displayed on the monitor as described above.

Therefore, according to the second embodiment, the left and right scene images and the front scene image can be switched and displayed by the operation of the switch 43. Also in this embodiment, one image pickup camera body can be used. Since it is possible to selectively display the left and right side scenes and the front side scene, downsizing of the device,
Cost reduction is possible.

In each of the above embodiments, the television camera has the image pickup camera body provided with the CCD image receiving portion 13. However, the present invention is not limited to this, and the image pickup camera body may be used as a photographic camera. Good.

[0025]

As described above, according to the present invention, a scene in three directions, that is, a front direction and a left-right bidirectional direction can be captured by a single image capturing camera. Thus, there is an effect that it is possible to monitor a wide range of scenes, and further, it is possible to obtain a three-direction monitoring image pickup camera device which is small in size and light in weight, inexpensive, and excellent in economical efficiency.

[Brief description of drawings]

FIG. 1 is an explanatory perspective view showing a conventional camera device.

FIG. 2 is a perspective view showing another conventional camera device.

FIG. 3 is a plane structure explanatory diagram showing a camera device of a first embodiment of the present invention.

FIG. 4 is a side view of FIG.

FIG. 5 is an explanatory diagram showing a video display mode of the first embodiment of the present invention.

FIG. 6 is a plane structure explanatory view showing a camera device of a second embodiment of the present invention.

FIG. 7 is an operation explanatory diagram of the camera device according to the second embodiment of the present invention.

FIG. 8 is a perspective view showing only a mirror driving mechanism of a second embodiment of the present invention.

FIG. 9 is a schematic diagram of a drive circuit according to a second embodiment of the present invention.

FIG. 10 is an explanatory diagram showing a video display mode of the second embodiment of the present invention.

[Explanation of symbols]

Reference numeral 11 ... Imaging camera body 12 ... Imaging lens 13 ... CCD image receiving portion 14 ... Image receiving processing portion 15 ... Front window 16 ... Left window 17 ... Right window 18 ... Case 19 ... Video signal circuit portion 20 ... Left side first mirror 21 ... Left side Second mirror 22 ... Right side first mirror 23 ... Right side second mirror 24 ... Lens (glass plate) 25 ... Lens (glass plate) 26 ... Lens (glass plate) 27 ... Power line 28 ... Video transmission line 29 ... Monitor 30 ... Vertical support shaft 31 ... Spring 32 ... Fixed frame 33 ... Support pin 34 ... Ratchet rod 35 ... Slot 36 ... Ratchet gear 37 ... Worm wheel 38 ... Worm shaft 39 ... Worm shaft 40 ... Transmission gear 41 ... Motor 42 ... Motor Control unit 43 ... Monitoring direction changeover switch

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location H04N 7/18 D (72) Inventor Kazuhiro Ishii 2-1910 Nisshin-cho, Omiya-shi, Saitama Kansei Co., Ltd. (72) Inventor Kyoji Kitagawa 2-1910 Nisshin-cho, Omiya City, Saitama Kansei Co., Ltd. (72) Akira Takahashi 1-22-1 Shirayama, Midori-ku, Yokohama, Kanagawa Showa Optronics Co., Ltd. (72 ) Inventor Satoshi Oka 1-22-1 Shirayama, Midori-ku, Yokohama, Kanagawa Prefecture Showa Optronics Co., Ltd. (72) Inventor Seiichiro Mori 1-21-2, Shirayama, Midori-ku, Yokohama City, Kanagawa Pref.

Claims (4)

[Claims] 1. A front window (1) in front of an imaging camera body (11) for allowing a front scene to enter an imaging lens of the imaging camera.
5) and the left side window (1
6) and the case (1) with the right window (17) formed respectively.
8) is provided, and inside the case (18), the view incident from the left side window (16) is captured by the imaging camera body (1).
1) The left first mirror (20) and the left second mirror (21) for making it enter, and the right first mirror (11) for making the scene incident from the right window (17) enter the imaging camera body (11). A three-direction monitoring imaging camera device, characterized in that the first mirror (22) and the right second mirror (23) are arranged so as to avoid the optical path of the scene incident from the front window (15). 2. A front window (1) for allowing a front scene to enter an imaging lens of the imaging camera in front of the imaging camera body (11).
5) and the left side window (1
6) and the case (1) with the right window (17) formed respectively.
8) is provided, and inside the case (18), the view incident from the left side window (16) is captured by the imaging camera body (1).
1) A left first mirror (20) and a left second mirror (21) for making the light incident on the imaging camera body (11). 1 mirror (22) and the right side second mirror (23) are arranged, and further, the left side second mirror (2
1) and the second mirror (23) on the right side are provided with a mirror driving mechanism that separates them from the optical path of the scene incident from the front window (15) or approaches them so as to close the optical path. A three-direction monitoring image pickup camera device characterized by being squeezed. 3. The three-direction monitoring image pickup camera device according to claim 1, wherein the image pickup camera body (11) is a television camera. 4. The three-direction monitoring image pickup camera device according to claim 1, wherein the image pickup camera body (11) is a photographic camera.