Image representation system and method for vehicles
First Claim
1. An imaging system for motor vehicles, comprising:
- a projector, a holographic ray uniter, which guides narrow band light to a viewer to produce a virtual image at the viewing location, a holographic screen, which is produced by means of holographic shooting of a real screen and which scatters incident narrow band light of one or more wavelengths at a predetermined solid angle, wherein the projector projects the light onto the holographic screen to produce real images on said holographic screen, wherein the holographic ray uniter is transparent to broad band ambient light, and wherein the narrow band light, scattered by the holographic screen, is guided to the viewer.
1 Assignment
0 Petitions
Accused Products
Abstract
An imaging system for motor vehicles has a holographic screen, which scatters incident narrow band light at a predetermined solid angle, and a modulator and a lens to project images on the holographic screen. A holographic, transparent ray uniter, which allows broad band ambient light to pass through essentially unimpeded, guides the narrow band light, coming from the holographic screen to the viewer, whereby a virtual image is produced at the viewing location by means of an imaging function. Images from the outside of the motor vehicle are shot by means of a camera system and are faded as virtual images into the windshield of the motor vehicle in order to enable there additionally a view to the rear or to the side.
20 Citations
22 Claims
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1. An imaging system for motor vehicles, comprising:
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a projector, a holographic ray uniter, which guides narrow band light to a viewer to produce a virtual image at the viewing location, a holographic screen, which is produced by means of holographic shooting of a real screen and which scatters incident narrow band light of one or more wavelengths at a predetermined solid angle, wherein the projector projects the light onto the holographic screen to produce real images on said holographic screen, wherein the holographic ray uniter is transparent to broad band ambient light, and wherein the narrow band light, scattered by the holographic screen, is guided to the viewer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for displaying images in motor vehicles comprising the steps of:
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projecting images by means of a laser and an image modulator for producing a narrow band light on a holographic screen;
guiding the light rays, scattered from the holographic screen, into a viewer'"'"'s eyes, producing virtual images in a surface located in front of the windshield of the motor vehicle by means of a hologram connected in series to the holographic screen to provide ray deflection. - View Dependent Claims (16, 17, 18, 19)
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20. A method for displaying images in motor vehicles comprising the steps of:
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projecting narrow band light of one or more wavelengths on a holographic screen, which is produced by holographic shooting of a real screen, to produce a real image on the holographic screen, and guiding the light rays, scattered by the holographic screen at a predetermined solid angle, into a viewer'"'"'s eye, whereby the light rays are deflected through a hologram and produce a virtual image at the viewer, while simultaneously broad band light of the environment lying behind the hologram passes through the hologram. - View Dependent Claims (21, 22)
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Specification