JP2005195839A - Rear-view display apparatus for driving simulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear-view display apparatus for use in a driving simulator, wherein a video for each of a plurality of rear-view confirmation mirrors is projected on a rear-view video screen and only the video from a specific corresponding projector can be confirmed on each of the rear-view confirmation mirrors. <P>SOLUTION: A polarizing film is arranged in front of a lens of a plurality of projectors and on a plurality of rear-view confirmation mirrors. The video from a specific projector is made to pass through the polarizing film so as to be reflected by the specific rear-view confirmation mirror and to form an image. The polarizing film, arranged on the projector, linearly polarizes the light from the projector, and the polarizing film is arranged on the corresponding specific rear view confirmation mirror so as to transmit the linearly polarized light and the video on the screen at the back can be viewed. The polarizing film on the specific rear view confirmation mirror will not allow the polarized light from other projectors to be transmitted so that overlapped videos will not be viewed, and a feeling close to actual scene can be reproduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rear display device that realizes a rear view in a driving simulator.

In the rear display device of a conventional driving simulator, as shown in FIG. 2, a method of attaching a liquid crystal monitor to each rear confirmation mirror position, as shown in FIG. A method of projecting an image and viewing each image through each rear confirmation mirror, as shown in FIG. 4, a single screen is set up behind the driver's seat, the image is projected, and the same image is viewed through each rear confirmation mirror Was used.
In FIG. 2, 201 is a simulated vehicle body, 202a is a first liquid crystal monitor that simulates a left door mirror, 202b is a second liquid crystal monitor that simulates a right door mirror, and 203 is a third liquid crystal monitor that simulates a room mirror. LCD monitor.
In FIG. 3, 301 is a simulated vehicle body, 303a is a left door mirror, 303b is a right door mirror, 304 is a room mirror, 305a is a first projector that projects an image for the left door mirror 303a, and 305b is an image for the right door mirror 303b. A second projector for projecting, 305c a third projector for projecting the image for the room mirror 304, 306a a first screen for projecting the image for the left door mirror 303a, and 306b a second projecting image for the right door mirror 303b. The screen 306c is a third screen for capturing the image for the room mirror 304.
In FIG. 4, 401 is a simulated vehicle body, 403a is a left door mirror, 403b is a right door mirror, 404 is a room mirror, 405 is a projector that projects a rear scene image, and 406 is a screen. The projector 405 projects an image from behind the screen.

In the conventional method of attaching the liquid crystal monitors 202a, 202b, and 203 to the respective rear confirmation mirror positions shown in FIG. 2, there is no sense of distance from the gaze object, no distortion of the image, and the mirror is simulated. There was a great sense of incongruity in that the vehicle body was not reflected on the liquid crystal monitors 202a, 202b, 203.
In the case of the method shown in FIG. 3 in which a plurality of screens 306a, 306b, and 306c are set up behind the driver's seat, and images are projected on the screens, and the images are viewed through the mirrors 303a, 303b, and 304, respectively. , 304 need to face the left and right door mirrors 303a, 303b extremely outward so that the display areas do not overlap.
Also, in the method shown in FIG. 4 in which an image is displayed on one screen 406 and the image is viewed through the mirrors 403 a, 403 b, and 404, the image from the projector 405 is an image when viewed through the room mirror 404. The viewpoints of the images shown on the other left and right door mirrors 403a and 403b are the same as the viewpoints from the room mirror 404, and the viewpoint of the images shown on the left and right door mirrors 403a and 403b is different from the actual viewpoint. .

In the case of the rear display device of a driving simulator, in order to reduce the sense of incongruity, it is necessary to give a sense of distance from the object to be watched, distort the image, and the vehicle body is reflected in the mirror. A device using a mirror and a rear image screen is desirable.
In the case of the rear display device of the driving simulator, in order to reduce the uncomfortable feeling, it is necessary to project the video corresponding to each of the rear confirmation mirrors onto the rear video screen.
Since the field of view of the rear confirmation mirror in the actual vehicle overlaps, the images projected by the projectors 501a, 501b, and 501c respectively corresponding to the rear image screen 501 are as shown in FIG. Overlap at the edges. When this is viewed with the mirror 504a (, 504b, 504c), an image from the corresponding projector 501a (, 501b, 501c) can be seen, but the overlapped image 503a (503b), that is, another projector 501c. Since the images from (, 501a, 501b) are viewed, and these images do not necessarily overlap as if they coincided, it is desirable that the device has a sense of incongruity and can confirm only the images of the corresponding projector.

  The present invention relates to a driving simulator rear display device in which images corresponding to each of a plurality of rear confirmation mirrors are projected onto a rear video screen, and an apparatus capable of confirming only the images of a specific corresponding projector from each rear confirmation mirror The purpose is to provide.

  A driving simulator rear display device according to the present invention includes a plurality of projectors that project images onto a screen positioned behind a driver's seat, and a plurality of rear confirmation mirrors that reflect and image images from the plurality of projectors. The polarizing film is arranged in front of the lenses of the plurality of projectors and the plurality of rear confirmation mirrors, and the image from the specific projector is transmitted through the polarizing film so as to be reflected and imaged by the specific rear confirmation mirror. It is characterized by this.

  The screen located behind the driver's seat may have directivity that is difficult to diffuse.

  The polarizing film placed on the projector linearly polarizes the light from the projector, and the corresponding specific rear confirmation mirror is arranged to transmit this linearly polarized light. You can see the video. Since the polarizing film of the specific rear confirmation mirror is arranged so as not to transmit the light polarized by the polarizing film arranged in the other projector, the image from the other projector cannot be reflected and combined. Without letting you see the image projected on the screen. As a result, it is possible to reproduce a feeling close to that of a live-action photograph.

  Since the screen has directivity and makes it difficult to diffuse the reflected light, it is possible to easily prevent the overlapping projected images from being mixed and seen in each rear confirmation mirror.

  The polarizing film according to the present invention applies different polarized light to the image from each projector, so that when the image displayed on the rear image screen is viewed through each mirror having the polarizing film, only the image of the corresponding projector can be seen. .

  FIG. 1 is a block diagram illustrating an embodiment of the present invention. In FIG. 1, 101 is a simulated vehicle body, 103a is a left door mirror for rear confirmation, 103b is a right door mirror for rear confirmation, 104 is a rear view mirror, and 105a is a first image for projecting an image for the left door mirror 103a. 105b is a second projector that projects the image for the right door mirror 103b, 105c is a third projector that projects the image for the room mirror 104, 106 is a directional screen, and 108a is on the left door mirror 103a. The polarizing film to be disposed, 108b is a polarizing film to be disposed on the right door mirror 103b, 109 is a polarizing film to be disposed on the rear mirror 104, 110a is a polarizing film disposed on the lens front surface of the first projector 105a, and 110b is the first film. Two projectors 10 Polarizing film arranged in front of the lens b, 111 is a polarizing film arranged on the lens front surface of the third projector.

  Polarizing films 109 and 111 disposed in the room mirror 104 and the third projector 105c respectively have parallel polarization planes. On the other hand, the polarizing films 108a, 108b, 110a, and 110b arranged in the left and right door mirrors 103a and 103b and the first and second projectors 105a and 105b, respectively, also have the plane of polarization parallel, but the angle is It is assumed that the polarization planes of the polarizing films 109 and 111 arranged in the room mirror 104 and the third projector 105c are rotated by 90 degrees.

When the driver drives the simulated vehicle, an image according to the operation is generated from an image generation device (not shown), and the image is projected from the projectors 105a, 105b, and 105c onto the screen 106. The image from the first projector 105a is reflected and coupled by the left door mirror 103a and can be viewed from the driver's seat. The image from the second projector 105b is reflected and coupled by the right door mirror 103b and can be viewed from the driver's seat. The image from the third projector 105c is reflected and coupled by the room mirror 104 and can be viewed from the driver's seat.
At this time, the screen image 106a on which the image projected from the third projector 105c is overlapped with the left door mirror 103a also enters the field of view, but the left door mirror 103a and the polarizing film 108a of the first projector 105a. And the pair of polarizing film 110a and the pair of room mirror 104, polarizing film 109 of the third projector 105c, and polarizing film 111 are installed with their polarization planes rotated by 90 degrees from each other. The image for the room mirror 104 by the third projector 105c cannot be viewed from the door mirror 103a.
In addition, the right door mirror 103b and the screen portion 106b on which the image projected from the third projector 105c is overlapped are also taken into view, but the right door mirror 103b and the polarizing film 108b of the second projector 105b Since the pair of polarizing films 110b, the pair of room mirror 104, the polarizing film 109 of the third projector 105c, and the pair of polarizing films 111 are installed with their polarization planes rotated by 90 degrees, the right door mirror The image for the room mirror 104 by the third projector 105c cannot be viewed from 103b.
In addition, the pair of the room mirror 104 and the polarizing film 109 and the polarizing film 111 of the third projector 105c, the left and right door mirrors 103a and 103b, and the polarizing films 108a, 110a, 108b and 110b of the first and second projectors 105a and 105b. Since the relationship is as described above, the room mirror 104 cannot see the image for the left door mirror 103a by the first projector 105a and the image for the right door mirror 103b by the second projector 105b.

  The screen 106 has directivity and is difficult to diffuse the reflected light when projected from the projectors 105a, 105b, and 105c. Therefore, the image from the first projector 105a and the image from the third projector 105c do not diffuse on the screen portion 106a, and the image from the first projector 105a can be seen from the left door mirror 103a, and from the room mirror 104. Will see the image from the third projector 105c, and will not appear mixed. Further, with respect to the screen portion 106b, the image from the second projector 105b and the image from the third projector 105c do not diffuse, and the image from the second projector 105b can be seen from the right door mirror 103b and the room mirror 104 can see. Will see the image from the third projector 105c, and will not appear mixed.

It is a block diagram explaining one Example of the rear display apparatus by this invention. It is a block diagram explaining an example of the conventional rear display apparatus. (Conventional example 1) It is a block diagram explaining an example of the conventional rear display apparatus. (Conventional example 2) It is a block diagram explaining an example of the conventional rear display apparatus. (Conventional example 3) It is a block diagram explaining the visual field of the mirror of a rear display apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Simulated vehicle body, 103a ... Left door mirror, 103b ... Right door mirror, 104 ... Room mirror, 105a ... First projector, 105b ... Second projector, 105c ... Third projector, 106 ... Screen, 108a ... Polarizing film 108b ... polarizing film, 109 ... polarizing film, 110a ... polarizing film, 110b ... polarizing film, 111 ... polarizing film.

Claims (2)

A rear display device that realizes a rear view in a driving simulator,
A plurality of projectors that project images onto a screen located behind the driver seat;
A plurality of rear confirmation mirrors that reflect and image images from the plurality of projectors;
A polarizing film is disposed in front of the lenses of the plurality of projectors and the plurality of rear confirmation mirrors, and an image from the specific projector is transmitted through the polarizing film so as to be reflected and imaged by the specific rear confirmation mirror. A rear display device for a driving simulator. 2. The rear display device for a driving simulator according to claim 1, wherein the screen located behind the driver's seat has directivity that is difficult to diffuse.

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