JP2000168441A - Multidirectional image pickup device, on-vehicle lamp with multidirectional image pickup device, collision monitoring device, forward direction monitoring device and side direction monitoring sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multidirectional image pickup device capable of simultaneously obtaining images in different directions by a single camera and inexpensively obtaining images in multi-directions. SOLUTION: A multidirectional image pickup device 32 includes an image pickup device 24 comprising a CCD camera; a lens 34 provided on a front surface of an image pickup device for the image pickup device 24; and a light path-changing device 22 provided on a front surface of the lens 34 and changing a light path so as to introduce a light from a plurality of directions. The light path-changing device 22 includes a mirror 50a for reflecting an incident light from a direction of an arrow 44a and a mirror 50b for reflecting an incident light from a direction of an arrow 44b. An image formed by a light reflected at the mirror 50a is indicated on an upper picture 46a of a display device 30 and an image formed by a light reflected at the mirror 50b is indicated on a lower picture 46b of the display device 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-directional imaging device,
The present invention relates to a vehicle-mounted lamp with a multidirectional imaging device, a collision monitoring device, a forward monitoring device, and a side monitoring sensor. In particular, the present invention relates to a multi-directional imaging device, a collision monitoring device, a vehicle-mounted lamp with a multi-directional imaging device, a forward monitoring device, and a side monitoring sensor that can simultaneously obtain images in different directions with one camera.

[0002]

2. Description of the Related Art In recent years, in-vehicle monitoring cameras have become widespread. However, in such a monitoring camera, the monitoring direction is limited to one direction. For this reason, in order to obtain images in two or more directions, it is preferable to use a method in which the monitoring camera attached to the camera platform is rotated manually or by a motor to change the imaging direction, or a method in which images are obtained using multiple monitoring cameras. General.

[0003]

However, in the former method, the surveillance camera must be rotated. However, the surveillance camera is vulnerable to vibration, and it is difficult to obtain a shake-free image. Another problem is that a plurality of images cannot be obtained at the same time. In the latter method, the apparatus becomes expensive because a plurality of monitoring cameras are used, and when a user monitors images, a switch for switching and displaying a plurality of images and a plurality of monitors are further provided. However, there is a problem that images in a plurality of directions cannot be obtained at low cost.

[0004] When a plurality of monitors are used, there is a problem that the driver's viewpoint shifts between the monitors and safety during driving is reduced.

In a CCD (Charge Coupled Device) image sensor generally used as a surveillance camera,
It has an imaging area that matches the monitor display. Therefore, when such a surveillance camera is used as an in-vehicle camera, the upper half of the image often shows an area such as the sky, which is not required for driving the vehicle. For this reason, it cannot be said that the surveillance camera is used efficiently.

Further, in order to use the surveillance camera at night, it is necessary to provide a special lighting light.

Further, the output device of the conventional surveillance camera is
The image display device is not shared with other devices that output image signals.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a multi-directional image pickup apparatus capable of inexpensively obtaining a multi-directional image having no shake at the same time. It is.

Another object of the present invention is to provide a multi-directional image pickup apparatus capable of simultaneously picking up a plurality of images without blurring having different magnifications, angles of view, and resolutions.

Still another object is to provide an in-vehicle lamp with a multi-directional imaging device that can simultaneously obtain images in different directions without shake and can be used at night.

It is still another object of the present invention to provide a collision monitoring device which makes it easy to visually recognize images in a plurality of directions, can reduce a driver's viewpoint movement, and can enhance driving safety. .

Still another object is to be able to display an image signal output from a multidirectional imaging device only when necessary, and to share one image display device with a device that outputs another image signal. It is to provide a collision monitoring device.

Still another object is to be able to display an image signal output from a multidirectional imaging device only when necessary, and to share one image display device with a device that outputs another image signal. It is to provide a forward direction monitoring device.

Still another object is to provide a side monitoring sensor that can capture right and left images at once.

Still another object is to provide a side monitoring sensor capable of capturing images of the right side, the left side, and the front side at a time.

[0016]

According to a first aspect of the present invention, there is provided a multidirectional image pickup apparatus, comprising: a camera for picking up an image; a lens provided on a front surface of the camera; An optical path changing device for changing an optical path so as to guide light from a plurality of directions to the lens.

According to the first aspect of the present invention, one camera can capture images in different directions at once and at low cost. Further, since there is no need to rotate the camera, an image without blur can be obtained.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the optical path changing device includes a reflecting prism arranged to guide light to a part of the lens.

According to a second aspect of the present invention, in addition to the functions and effects of the first aspect, light is incident on a part of the lens via a reflecting prism. For this reason, images in different directions can be taken at once by one camera, and multi-directional images without vibration can be obtained at low cost.

According to a third aspect of the present invention, in addition to the configuration of the second aspect, the reflecting prism is a reflecting prism with a curvature having a curvature of the incident surface.

According to a third aspect of the present invention, in addition to the functions and effects of the second aspect of the present invention, light is incident on a part of the lens via a curved reflecting prism. For this reason, it is possible to simultaneously capture a plurality of images having different shakes with different magnifications, angles of view, and resolutions.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect, the optical path changing device includes a mirror arranged to guide light to a part of the lens.

According to a fourth aspect of the present invention, in addition to the functions and effects of the first aspect, light is incident on a part of the lens via a mirror. For this reason, images in different directions can be taken at once by one camera, and multi-directional images without vibration can be obtained at low cost.

According to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect, the mirror is a mirror with a curved surface having a reflecting surface having a curvature.

According to a fifth aspect of the present invention, in addition to the functions and effects of the fourth aspect of the present invention, light enters a part of the lens via a mirror with a curvature. For this reason, it is possible to simultaneously capture a plurality of images having different shakes with different magnifications, angles of view, and resolutions.

According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, the optical path changing device further comprises an optical path changing device arranged to guide the light from the first direction to the lens. And a lens disposed on a surface of the reflecting prism that receives light from the first direction.

According to a sixth aspect of the present invention, in addition to the functions and effects of the first aspect of the present invention, a part of a lens provided on the front surface of the camera receives light through another lens and a reflecting prism. Is incident. Therefore, it is possible to simultaneously capture a plurality of images having different shakes with different magnifications, angles of view, and resolutions.

According to a seventh aspect of the present invention, there is provided an in-vehicle lamp with a multidirectional imaging device, wherein the lamp is provided inside a lamp and a protective case of the lamp, and has a visual axis in a direction parallel to an optical axis of the lamp. And the multidirectional imaging device according to any one of the above.

According to the present invention, the multidirectional imaging device is provided inside the lamp, and the optical axis of the lamp is parallel to the visual axis of the multidirectional imaging device. For this reason,
The multi-directional imaging device can be used at night, and images in different directions without shake can be obtained at the same time. Further, since the multidirectional imaging device is provided inside the protection case of the lamp, a case for protecting the multidirectional imaging device is not required.

According to a eighth aspect of the present invention, there is provided a collision monitoring apparatus, comprising: the multidirectional imaging apparatus according to any one of the first to sixth aspects; and an image display for displaying an image output from the multidirectional imaging apparatus. Device.

According to the present invention, images taken from a plurality of directions can be displayed on the same screen. For this reason, the visual recognition of the images in a plurality of directions becomes easy, the viewpoint movement of the driver can be reduced, and the safety during driving can be improved.

A collision monitoring device according to a ninth aspect of the present invention is connected to the multidirectional imaging device according to any one of the first to sixth aspects, and is connected to an output of the multidirectional imaging device and output from a direction indicator. An image switching device for outputting an image signal output from the multidirectional imaging device when the signal and the vehicle speed satisfy predetermined conditions, and an image display device connected to the image switching device.

According to the ninth aspect of the present invention, when the signal output from the direction indicator and the vehicle speed satisfy predetermined conditions, the image signal output from the multidirectional imaging device is displayed on the image display device. . Therefore, the image signal output from the multi-directional imaging device can be displayed only when necessary, such as when waiting to make a right turn. Therefore, one image display device can be shared with a device that outputs another image signal.

According to a tenth aspect of the present invention, a forward direction monitoring device is connected to the output of the multidirectional imaging device according to any one of the first to sixth aspects, and includes a steering wheel rotation angle and a vehicle speed. Includes an image switching device for outputting an image signal output from the multidirectional imaging device when a predetermined condition is satisfied, and an image display device connected to the image switching device.

According to the tenth aspect, when the steering wheel rotation angle and the vehicle speed satisfy predetermined conditions, the image signal output from the multidirectional imaging device is displayed on the image display device. Therefore, the image signal output from the multi-directional imaging device can be displayed only when necessary, such as when the vehicle is to be moved from the parking zone of the parking lot. Therefore, one image display device can be shared with a device that outputs another image signal.

The side monitoring sensor according to the eleventh aspect is a camera for capturing an image, a lens provided on the front of the camera, and provided on the front of the lens to guide light from a plurality of directions to the lens. And a double-slope coating prism with coating on both the slants for changing the optical path.

According to the eleventh aspect of the present invention, light reflected on one of the slopes of the two slope coating prisms and light reflected on the other slope are incident on the lens. For this reason, the right and left images can be captured at once.

According to a twelfth aspect of the present invention, in addition to the configuration of the eleventh aspect, the two inclined surface coating prisms are arranged so as to guide light from a plurality of directions to a part of the lens. I have.

According to a twelfth aspect of the present invention, in addition to the functions and effects of the eleventh aspect, a part of the lens includes:
The light reflected on one slope of the two slope coating prisms and the light reflected on the other slope are incident. Light directly enters the rest of the lens. For this reason, the right side image, the left side image, and the front image can be captured at a time.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A right turn collision monitoring device according to a first embodiment of the present invention will be described below with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Since their names and functions are the same, repetition of the description will be appropriately omitted.

Referring to FIG. 1, a right-turn collision monitoring device 20 mounted on a vehicle includes a multi-directional imaging device 32 for outputting images captured from multiple directions as one image signal.
Is connected to the output of the multidirectional imaging device 32 and the output of the navigation device 26, and selects one of the outputs of the multidirectional imaging device 32 and the navigation device 26 based on the signal output from the direction indicator of the vehicle and the vehicle speed. It includes an image switching device 28 for outputting, and an image display device 30 connected to the image switching device 28 for displaying an image signal output from the image switching device 28.

The multi-directional imaging device 32 includes an imaging device 24 such as a CCD camera, a lens 34 provided on the front surface of the imaging surface of the imaging device 24, and a light provided on the front surface of the lens 34, and receives light from a plurality of directions. An optical path changing device 22 for changing an optical path so as to guide the light to a lens.

Referring to FIG. 2, multidirectional imaging device 32 includes
It is incorporated in a bumper of the vehicle 40 and outputs an image signal obtained by combining an image in the traveling direction indicated by the arrow 44a and an image in the direction indicated by the arrow 44b. Further, the image display device 3
Numeral 0 is attached to a position inside the vehicle 40 where the driver can easily see.

Referring to FIG. 3, optical path changing device 22 includes a mirror 50a for reflecting light incident from arrow 44a and a mirror 50b for reflecting light incident from arrow 44b. Including. The image formed by the light reflected by the mirror 50a is displayed on the upper screen 46 of the display device 30.
a, and an image formed by the light reflected by the mirror 50b is displayed on the lower screen 46b of the display device 30.
It should be noted that in FIG.
6 and the image switching device 28 are omitted.

Referring again to FIG. 1, right turn collision monitoring device 2
Each part of 0 operates as follows. Image switching device 28
Is when the vehicle 40 is waiting in a right turn lane to make a right turn, that is, when a direction indicator signal indicating that the direction indicator indicates right and the speed (vehicle speed) of the vehicle 40 is lower than a predetermined value , The output of the multidirectional imaging device 32 is selectively output. On the image display device 30, an image captured by the multidirectional imaging device 32 is displayed.

At the time of other normal running or left turn standby, the image switching device 28 selectively outputs the output of the navigation device 26. The image output from the navigation device 26 is displayed on the image display device 30.

Referring again to FIG. 2 and FIG.
Is waiting to make a right turn in the direction of arrow 42, an image in the direction of arrow 44a (the traveling direction) is displayed on upper screen 46a of image display device 30. Arrow 44
The image in the direction b (oncoming lane direction) is displayed on the lower screen 4 of the image display.
6b. For this reason, the driver can instantly judge the situation in the traveling direction and the situation of the oncoming lane by looking at the screen of the image display device 30 when waiting for a right turn, and can make a smooth right turn. Along with this,
Accidents when turning right are reduced. It is needless to say that the image switching device 28 may selectively output the output of the multidirectional imaging device 32 only when waiting for a left turn.

In the example shown in FIG.
Is incorporated in the bumper of the vehicle 40, but with reference to FIG. 4, the multidirectional imaging device 32 may be incorporated in a vehicle-mounted lamp 52 such as a headlamp or a fog lamp. Normally, the front surface of the vehicle-mounted lamp 52 is made of a protective glass 56, and has a structure resistant to dirt such as mud.
The multidirectional imaging device 32 is embedded in the vehicle-mounted lamp 52,
On its front surface, a flat glass surface 54 is provided in common with the protective glass 56. A signal output terminal 58 for taking out the output of the multidirectional imaging device 32 is provided on the back of the vehicle-mounted lamp 52. The multidirectional imaging device 32 is installed such that one of the two visual axes of the multidirectional imaging device 32 is parallel to the optical axis of the vehicle-mounted lamp 52. Thus, the multidirectional imaging device 32 can be used at night. Further, a glass for protecting the multidirectional imaging device 32 is not required.

In FIG. 3, two mirrors 50a and 50
b, an example in which images obtained in two directions are displayed on the upper screen 46a and the lower screen 46b of the image display device 30 has been described. However, the multidirectional imaging device 32 is not limited to this. Various modifications as shown are conceivable.

[Modification 1] Referring to FIG. 5, the multi-directional imaging device is provided with an imaging device 24, a lens 34 provided on the front surface of the imaging surface of the imaging device 24, and a front surface of the lens 34, It includes a lower half of the lens 34 and a reflecting prism 59 arranged such that its exit surface has an overlap. Arrow 51
Light incident from the direction a enters the upper half of the lens 34, and an image formed by the light is displayed on the upper screen 53a of the image display device 30. The light incident from the arrow 51b enters the reflection prism 59, is reflected by the reflection prism 59, and then enters the lower half of the lens 34, and an image created by the light is displayed on the lower screen 53b of the image display device 30. Is displayed.

[Modification 2] Referring to FIG. 6, the multi-directional imaging device is provided with an imaging device 24, a lens 34 provided on the front surface of the imaging surface of the imaging device 24, and a front surface of the lens 34. Includes a right half of the lens 34 and a reflecting prism 59 arranged so that its exit surface has an overlap. Arrow 51
The light incident from the direction c enters the left half of the lens 34, and an image formed by the light is displayed on the left screen 53c of the image display device 30. The light incident from the arrow 51d enters the reflecting prism 59, is reflected by the reflecting prism 59, and then enters the right half of the lens 34, and an image formed by the light is displayed on the right screen 53d of the image display device 30. Is displayed.

[Modification 3] Referring to FIG. 7, the multi-directional imaging device is provided with an imaging device 24, a lens 34 provided in front of the imaging surface of imaging device 24, and a front surface of lens 34, Includes the upper, middle, and lower surfaces of the lens 34, and the reflecting prisms 60a, 60b, and 60c that are arranged such that their exit surfaces overlap. Arrow 51e, 5
The respective lights incident from the respective directions 1f and 51g respectively enter the reflecting prisms 60a, 60b and 60c. The incident light is reflected by the reflecting prism 6 respectively.
0a, 60b and 60c, the lens 34
Are incident on the upper surface, the middle surface, and the lower surface, respectively, and the respective images formed by the respective lights are displayed on the upper screen 53e, the middle screen 53f, and the lower screen 53g of the image display device 30, respectively. Thus, images in three directions can be captured at once by one imaging device 24 and displayed on one screen. By providing four or more reflecting prisms, images in more directions can be captured by one imaging device 24.

[Modification 4] Referring to FIG. 8, a multi-directional imaging device includes an imaging device 24, a lens 34 provided on the front surface of imaging device 24, and a lens 34 provided on the front surface of lens 34. Includes a reflecting prism 59 disposed so that the lower half and its exit surface overlap each other, and a lens 70 provided on the incident surface of the reflecting prism 59. Light incident from the direction of the arrow 51h enters the upper half of the lens 34, and an image formed by the lens 34 is captured by the imaging device 24. Light incident from the direction of the arrow 51i enters the reflection prism 59 through the lens 70, is reflected by the reflection prism 59, and then enters the lower half of the lens 34. Light incident from the direction of the arrow 51i is formed into an image in accordance with the combined focus of the lenses 70 and 34, and the image is captured by the imaging device 24.

Thus, a plurality of images having different magnifications, angles of view, and resolutions can be displayed on the same screen.

[Modification 5] Referring to FIG. 9, the multi-directional imaging device includes an imaging device 24, a lens 34 provided on the front surface of the imaging device 24, and a lens 34 provided on the front surface of the lens 34. Includes a lower half and a prism with curvature 72 arranged such that its exit surface has an overlap. The incidence surface of the prism with curvature 72 is formed in a convex shape. Arrow 5
Light incident from the direction 1j is incident on the upper half of the lens 34 and is imaged by the imaging device 24. The light incident from the direction of the arrow 51k enters the entrance surface of the convex prism 72 having a convex shape, is reflected by the prism 72 with the curvature, and then enters the lower half of the lens 34. Lens 3
The light incident on the lower half of 4 is imaged by the imaging device 24.

Thus, a plurality of images having different magnifications, angles of view, and resolutions can be displayed on the same screen.

[Modification 6] Referring to FIG. 10, a multi-directional imaging device includes an imaging device 24, a lens 34 provided on the front surface of imaging device 24, and a lens 34 provided on the front surface of lens 34. And a mirror 74 with a curvature disposed such that reflected light is incident on the lower half. Light incident from the direction of the arrow 51m is incident on the upper half of the lens 34,
4 is taken. Light incident from the direction of the arrow 51n is reflected by the reflecting surface of the mirror 74 with a curvature, and then the reflected light is incident on the lower half of the lens. The light incident on the lower half of the lens 34 is imaged by the imaging device 24.

Thus, a plurality of images having different magnifications, angles of view, and resolutions can be displayed on the same screen.

The right-turn collision monitoring device 20 as described above
Accordingly, images in two or more directions can be captured by one imaging device 24. For this reason, multidirectional images can be obtained at low cost. In addition, since the driver can view images in two or more directions at once on the image display device 30, the viewpoint movement during monitoring is small, and the safety during driving can be further improved.

The right-turn collision monitoring device 20 displays the image output from the multi-directional imaging device 32 on the image display device 30 only during the right-turn standby. Therefore, one image display device 30 can be shared with a device that outputs another image. Therefore,
An easy-to-use right-turn collision monitoring device 20 can be manufactured at low cost.

[Second Embodiment] Referring to FIG. 11, a front right direction monitoring apparatus 80 according to a second embodiment is connected to a multidirectional imaging apparatus 32 and outputs of multidirectional imaging apparatus 32 and navigation apparatus 26. An image switching device 82 for selecting and outputting one of the outputs of the multi-directional imaging device 32 and the navigation device 26 based on the steering wheel rotation angle and the vehicle speed of the vehicle, and an image switching device 82 And an image display device 30 for displaying the output image signal.

The installation example and the configuration of the multidirectional imaging device 32 are the same as those of the first embodiment described with reference to FIGS. Therefore, description will not be repeated.

The front right direction monitoring device 80 operates as follows. When the steering wheel rotation angle is smaller than the predetermined value and the speed is smaller than the predetermined value, the image switching device 82 selectively outputs the output of the multidirectional imaging device 32. Image display device 3
At 0, an image captured by the multidirectional imaging device 32 is displayed.

In other cases, the image switching device 28
The output of the navigation device 26 is selectively output. The image output from the navigation device 26 is displayed on the image display device 30.

Referring to FIG. 12A, a case is considered where the driver moves vehicle 40 in the left front direction (the direction of the arrow in the figure) in order to move the vehicle from the parking zone in the parking lot. At this time, another vehicle parked in front of the vehicle 40 becomes an obstacle. Therefore, it is important to move the vehicle 40 so as not to contact another vehicle.

Referring to FIG. 12B, a multidirectional imaging device 32 is mounted on a bumper of vehicle 40. Therefore, when the vehicle 40 is moved in the left front direction (the direction of the arrow in the figure), the images of the two vehicles in front (ranges 85 and 8) are displayed.
7), and the distance to another vehicle ahead can be accurately known. As a result, a collision accident with another vehicle in front can be prevented, and the vehicle 40 can be smoothly moved from the parking zone.

The right front direction monitoring device 80 described above is transmitted from the multidirectional imaging device 32 to the image display device 30 only when the rotation angle of the steering wheel is small and the speed is small, for example, when the vehicle is going out of the parking zone. Displays the output image. Therefore, one image display device 30 can be shared with a device that outputs another image. Therefore,
An easy-to-use right front direction monitoring device 80 can be manufactured at low cost.

It goes without saying that an imaging device capable of capturing an image in the left front direction may be used instead of the multidirectional imaging device 32.

Third Embodiment Referring to FIG. 13, side monitoring device 90 according to the third embodiment is provided with side monitoring sensor 1.
00 and an image display device 30 connected to the side monitoring sensor 100 for displaying an image output from the side monitoring sensor 100.

The side monitoring sensor 100 is connected to the imaging device 24.
And a lens 3 provided in front of the imaging surface of the imaging device 24
4 and provided on the front surface of the lens 34 in two directions (arrow 94).
a) and a double-sided coated prism 92 for guiding the light in the direction of arrow a and the direction of arrow 94 b) to the left and right halves of lens 34.

The light in the direction of the arrow 94 a is reflected by a reflection surface having the two inclined coating prisms 92 and then enters the left half of the lens 34. The light incident on the left half of the lens 34 is imaged by the imaging device 24 and then
0 is displayed on the left screen 96a. The light in the direction of the arrow 92 b is reflected on the other reflecting surface of the two inclined coating prisms 92, and then enters the right half of the lens 34. Lens 3
The light incident on the right half of 4 is captured by the imaging device 24, and then displayed on the right screen 96b of the image display device 30.

Referring to FIG. 14, side monitoring sensor 100
Is mounted on a bumper of the vehicle 40. Thus, the left and right images of the vehicle 40 can be obtained simultaneously. The image display device 30 is mounted at a position inside the vehicle 40 that is easy for a driver to see.

With the side monitoring device 90 described above, the driver can see the left side and the right side of the vehicle 40 at the same time, and the driving safety can be further improved.

Fourth Embodiment Referring to FIG. 15, a side monitoring device 110 according to a fourth embodiment is connected to a side monitoring sensor 120 and a side monitoring sensor 120. And an image display device 30 for displaying an output image.

The side monitoring sensor 120 is connected to the imaging device 24
And a lens 3 provided in front of the imaging surface of the imaging device 24
4 and provided on the front surface of the lens 34 in two directions (arrow 11).
4a and the direction of arrow 114b)
4 and two beveled coating prisms 112 for guiding to the lower left and right halves.

The light in the direction of arrow 114a is reflected by one of the reflecting surfaces of
The light enters the lower left portion of the lens 34. The light that has entered the lower left portion of the lens 34 is displayed on the lower left screen 116 a of the image display device 30 after being captured by the imaging device 24. Arrow 1
The light in the direction of 14 b is
After being reflected by the other reflecting surface of No. 2, it is incident on the lower right part of the lens 34. The light incident on the lower right part of the lens 34 is
After the image is captured by the imaging device 24, the image is displayed on the lower right screen 116b of the image display device 30. The light in the direction of arrow 114c enters the upper half of the lens 34. The light incident on the upper half of the lens 34 is imaged by the imaging device 24 and then displayed on the upper screen 116c of the image display device 30.

Referring to FIG. 16, side monitoring sensor 120
Is mounted on a bumper of the vehicle 40. Thereby, the images of the front, the left side, and the right side of the vehicle 40 can be simultaneously obtained. The image display device 30 is mounted at a position inside the vehicle 40 that is easy for a driver to see.

With the lateral monitoring device 110 as described above,
The driver can see the front, left and right sides of the vehicle 40 at the same time. Therefore, the driver can use the image display device 30
You can drive while watching.

The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a right-turn collision monitoring device 20 according to a first embodiment.

FIG. 2 is a diagram showing an example of installation of a multidirectional imaging device 32 and an image display device 30 on a vehicle 40.

FIG. 3 is a diagram showing a configuration of an optical path changing device 22.

FIG. 4 is a diagram showing an installation example when the multidirectional imaging device 32 is incorporated in a vehicle-mounted lamp 52.

FIG. 5 is a diagram illustrating a configuration of a first modification of the multidirectional imaging device.

FIG. 6 is a diagram illustrating a configuration of a modified example 2 of the multidirectional imaging device.

FIG. 7 is a diagram illustrating a configuration of a modified example 3 of the multidirectional imaging device.

FIG. 8 is a diagram illustrating a configuration of a modified example 4 of the multidirectional imaging device.

FIG. 9 is a diagram illustrating a configuration of a modified example 5 of the multidirectional imaging device.

FIG. 10 is a diagram illustrating a configuration of a modified example 6 of the multidirectional imaging device.

FIG. 11 is a diagram showing a configuration of a right forward monitoring device 80 according to a second embodiment.

FIG. 12 is a diagram illustrating a range of an image obtained by a rightward frontward monitoring device 80 when a vehicle 40 is moved leftward in a parking lot.

FIG. 13 is a diagram showing a configuration of a lateral monitoring device 90 according to a third embodiment.

14 is a side monitoring sensor 100 and an image display device 3. FIG.
FIG. 3 is a diagram showing an example of installation of a vehicle No. 0 on a vehicle 40.

FIG. 15 is a diagram showing a configuration of a side monitoring device 110 according to a fourth embodiment.

FIG. 16 is a side monitoring sensor 120 and an image display device 3.
FIG. 3 is a diagram showing an example of installation of a vehicle No. 0 on a vehicle 40.

[Explanation of symbols]

 Reference Signs List 20 right-turn collision monitoring device 22 optical path changing device 24 imaging device 26 navigation device 28 image switching device 30 image display device 32 multidirectional imaging device 34 lens 44a, 44b arrow 46a upper screen 46b lower screen 50a, 50b mirror

Claims (12)

[Claims] 1. A camera for picking up an image, a lens provided on a front surface of the camera, and an optical path provided on a front surface of the lens and changing an optical path to guide light from a plurality of directions to the lens. Multi-directional imaging device, including an optical path changing device for the same. 2. The multi-directional imaging device according to claim 1, wherein the optical path changing device includes a reflection prism disposed to guide light to a part of the lens. 3. The multidirectional imaging device according to claim 2, wherein the reflection prism is a reflection prism with a curvature having a curvature on an incident surface. 4. The multidirectional imaging device according to claim 1, wherein the optical path changing device includes a mirror arranged to guide light to a part of the lens. 5. The multi-directional imaging device according to claim 4, wherein the mirror is a mirror with a curvature whose reflective surface has a curvature. 6. The optical path changing device, wherein the optical path changing device comprises: a reflecting prism arranged to guide light from a first direction to the lens; and a reflecting prism from the first direction. The multidirectional imaging device according to claim 1, further comprising a lens disposed on a surface that receives light. 7. A multi-directional imaging device according to claim 1, wherein the multi-directional imaging device is provided inside the protective case of the lamp and has a visual axis in a direction parallel to an optical axis of the lamp. In-vehicle lamp with multi-directional imaging device. 8. A collision monitoring device, comprising: the multidirectional imaging device according to claim 1; and an image display device for displaying an image output from the multidirectional imaging device. 9. A multi-directional imaging device according to claim 1, wherein the multi-directional imaging device is connected to an output of the multi-directional imaging device, and a signal output from a direction indicator and a vehicle speed satisfy predetermined conditions. An image switching device for outputting an image signal output from the multi-directional imaging device, and an image display device connected to the image switching device,
Collision monitoring device. 10. The multi-directional imaging device according to claim 1, wherein the multi-directional imaging device is connected to an output of the multi-directional imaging device, and the steering wheel rotation angle and the vehicle speed satisfy predetermined conditions. An image switching device for outputting an image signal output from the imaging device, including an image display device connected to the image switching device,
Forward direction monitoring device. 11. A camera for capturing an image, a lens provided on the front of the camera, and an optical path provided on the front of the lens for changing an optical path to guide light from a plurality of directions to the lens. A side monitoring sensor, comprising: a double-slope coating prism having a coating applied to both slopes. 12. The double-slope coating prism,
The side monitoring sensor according to claim 11, wherein the side monitoring sensor is arranged to guide light from a plurality of directions to a part of the lens.