Optics: image projectors – Stereoscopic
Patent
1997-07-17
1999-01-05
Dowling, William
Optics: image projectors
Stereoscopic
353 94, 359464, 359477, G03B 2114
Patent
active
058554254
ABSTRACT:
A left eye image is projected from a projector 1L, and a right eye image is projected from a projector 1R. The images projected from the projectors 1L and 1R pass through light transmitting portions 21 in light shading means 2a. Consequently, pairs of right and left eye images are formed on a dispersion panel 2b. The light shading means 2a is composed of a liquid crystal display panel, for example. The width of each of the light transmitting portions 21 is made so small that two or more pairs of right and left eye images can exist in each of predetermined regions of the dispersion panel 2b. Further, the position of each of the light shading portions 21 can be shifted in the transverse direction. Each of the pairs of right and left eye images formed on the dispersion panel 2b is introduced into the right and left eyes of a viewer upon being separated by a lens portion of a lenticular lens 2c. A sensor 10 detects the position of the viewer. A driving and control unit 12 changes the positions of the light transmitting portions 21 in the light shading means 2a on the basis of an output of the sensor 10.
REFERENCES:
patent: 4872750 (1989-10-01), Morishita
patent: 5125733 (1992-06-01), Lee
patent: 5465175 (1995-11-01), Woodgate et al.
patent: 5568313 (1996-10-01), Steenblik et al.
patent: 5663831 (1997-09-01), Mashitani et al.
Dowling William
Sanyo Electric Co,. Ltd.
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