Method and device for performing stereoscopic image display based on color selective filters
First Claim
1. A stereoscopic projection system comprising a projection device with at least one filter which filters a parameter of the light in a color selective manner, said filtering in a color selective manner being for obtaining the stereoscopic effect of the stereoscopic images for a left eye and a right eye, respectively, the at least one filter having a spectral characteristic for simultaneously transmitting light in a first set of wavelength bands and for simultaneously reflecting or absorbing light in a second set of wavelength bands, wherein the projection device comprises a means for fast synchronized switching between light in different wavelength bands or sets of wavelength bands.
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Abstract
In one aspect, the present invention relates to a stereoscopic projection system including a projection device with at least one filter which filters a parameter of the light in a color selective manner. The at least one filter which filters a parameter of the light in a color selective manner has a spectral characteristic for transmitting light in a first wavelength band or set of wavelength bands and for reflecting light in a second wavelength band or set of wavelength bands. The projection device includes a device, such as e.g. a rotating wheel or a sliding filter, for fast synchronized switching between light in different wavelength bands or sets of wavelength bands. In a further aspect, a stereoscopic projection system is provided in which a combination of a first and a second filter mechanism are used, the first filter mechanism being a filter which filters a parameter of the light in a color selective manner, such as a color selective filter or a color selective retarder, and the second filter mechanism preferably being a polarizer or a shutter.
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Citations
25 Claims
- 1. A stereoscopic projection system comprising a projection device with at least one filter which filters a parameter of the light in a color selective manner, said filtering in a color selective manner being for obtaining the stereoscopic effect of the stereoscopic images for a left eye and a right eye, respectively, the at least one filter having a spectral characteristic for simultaneously transmitting light in a first set of wavelength bands and for simultaneously reflecting or absorbing light in a second set of wavelength bands, wherein the projection device comprises a means for fast synchronized switching between light in different wavelength bands or sets of wavelength bands.
- 22. A stereoscopic projection system comprising a projection device with at least one filter which filters a parameter of the light in a color selective manner, said filtering in a color selective manner being for obtaining the stereoscopic effect of the stereoscopic images for a left eye and a right eye, respectively, the at least one filter having a spectral characteristic for simultaneously transmitting light in a first set of wavelength bands and for simultaneously reflecting or absorbing light in a second set of wavelength bands, wherein the projection device comprises a means for fast synchronized switching between light in different wavelength bands or sets of wavelength bands, wherein the system furthermore comprises means for electronically compensating for color differences between a plurality of signals originating from the projection device or projection devices.
Specification