Method and device for performing stereoscopic image display based on color selective filters
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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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86 Claims
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1-40. -40. (canceled)
- 41. 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 transmitting light in a first wavelength band or set of wavelength bands and for reflecting or absorbing light in a second wavelength band or 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.
- 51. A stereoscopic projection system comprising at least one set of a first and a second stereo projection devices for projecting images onto a common display unit, wherein each of the first and second stereo projection devices are provided with a combination of a first and a second filter mechanism, the first filter mechanism being a filter which filters a parameter of the light in a color selective manner, said filtering in a color selective manner of the first and second stereo projection devices being for obtaining the stereoscopic effect of the stereoscopic images for a left eye and a right eye.
Specification