Optical: systems and elements – Stereoscopic – With right and left channel discriminator
Patent
1997-02-11
1999-04-27
Henry, Jon
Optical: systems and elements
Stereoscopic
With right and left channel discriminator
359247, 359449, 349 15, 349101, 353 8, G02B 2726, G02F 11335, G03B 2128
Patent
active
058985204
ABSTRACT:
A three-dimensional stereovision imaging system (20) adapted for use with a polarizing filter (22). The inventive system (20) includes a stereovision projector (24) for generating a projection (26) of alternating left and right images. A polarizer (30) polarizes electromagnetic energy corresponding to the images (26) and provides a polarized image (34) in response thereto. A twist liquid crystal screen (28) controlled by a twist liquid crystal controller (36) rotates the plane of oscillation of the polarized image (40) by a first twist angle synchronized with the alternating left and right images. Polarizing glasses (42) direct the polarized image (40) from the twist liquid crystal (28) into alternate eyes in response to the polarization state of the polarized image (40). In a specific embodiment, the polarizing glasses (42) have first (44) and second (46) eye-pieces with first (44) and second (46) linear polarizers, respectively. The polarizing plane of the first polarizer (44) is rotated with respect to the polarizing plane of the second polarizer (46) by an angle equivalent to the twist angle which is ninety-degrees. In the illustrative embodiment, the sheet polarizer (30) includes a scattering screen (32) for reflective mode operation and a display for transmission mode operation.
REFERENCES:
patent: 3858001 (1974-12-01), Bonne
patent: 3960438 (1976-06-01), Bonne et al.
patent: 4281341 (1981-07-01), Byatt
patent: 4719507 (1988-01-01), Bos
patent: 4792850 (1988-12-01), Liptoh et al.
patent: 4870486 (1989-09-01), Nakagawa et al.
patent: 4877307 (1989-10-01), Kalmanash
Henry Jon
Lenzen, Jr. G. H.
Raytheon Company
Schubert W. C.
LandOfFree
Three-dimensional imaging system having a polarizing filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three-dimensional imaging system having a polarizing filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-dimensional imaging system having a polarizing filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-688947