Optics: image projectors – Stereoscopic – Polarizer
Patent
1990-12-12
1992-06-16
Cuchlinski, Jr., William A.
Optics: image projectors
Stereoscopic
Polarizer
353 20, 353 30, 359464, G02B 2726
Patent
active
051219832
ABSTRACT:
A stereoscopic projector includes a condenser member for leading a beam from a lamp to advance in parallel, an infrared ray filter for removing heat component in the beam from the condenser system, a polarizing beam splitter for splitting an incident beam into two beams, a liquid crystal display panel or a slide film for obtaining image signals, and a reflective mirror for converting the beam path a field lens and a projection lens, whereby the projector prevents the keystoning phenomenon, since the light utilizing efficiency is high, the power loss is reduced, and the infrared filter removes the thermal line from the beam so that the separate cooling system is not required.
REFERENCES:
patent: 2212880 (1940-08-01), Land
patent: 2672786 (1954-03-01), Capstaff
patent: 2958258 (1960-11-01), Kelly
patent: 4256368 (1981-03-01), Task
patent: 4295153 (1981-10-01), Gibson
patent: 4345258 (1982-08-01), Tsai et al.
patent: 4480893 (1984-11-01), Fantone
patent: 4647966 (1987-03-01), Phillips et al.
patent: 4786146 (1988-11-01), Ledebuhr
patent: 4943154 (1990-07-01), Miyatake et al.
patent: 4969730 (1990-11-01), VandenBrandt
patent: 4969731 (1990-11-01), Ogino et al.
patent: 5060058 (1991-10-01), Goldenberg et al.
Cuchlinski Jr. William A.
Dowling William C.
Goldstar Co. Ltd.
LandOfFree
Stereoscopic projector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stereoscopic projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stereoscopic projector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1749960