Optical modulation device and projector

Optics: image projectors – Polarizer or interference filter

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

353 31, 349 5, G03B 2114

Patent

active

060452285

ABSTRACT:
There is disclosed an optical modulation device provided with a binary-type diffraction grating for separating incident light into plural colored lights and an optical modulation element including plural pixels and modulating the incident light in each of the pixels wherein the colored lights from the diffraction grating are introduced into the pixels provided respectively for the colored lights in the optical modulation element. The optical modulation element comprises a portion for controlling the optical modulation, a portion controlled by the optical modulation, an entrance side polarizing element, and an exit side polarizing element, wherein the polarizing direction of the entrance side polarizing element is parallel to a plane formed by the grating direction vector of the diffraction grating and the normal line vector thereof.

REFERENCES:
patent: 4798448 (1989-01-01), van Raalte
patent: 5108172 (1992-04-01), Flasck
patent: 5161042 (1992-11-01), Hamada
patent: 5231432 (1993-07-01), Glenn
patent: 5237435 (1993-08-01), Kurematsu et al.
patent: 5467206 (1995-11-01), Loiseaux et al.
patent: 5513025 (1996-04-01), Watanabe et al.
patent: 5623348 (1997-04-01), Ogino
patent: 5648860 (1997-07-01), Ooi et al.
patent: 5755501 (1998-05-01), Shinohara et al.
patent: 5760850 (1998-06-01), Nakanishi et al.
patent: 5801795 (1998-09-01), Ogino
Applied Optics, vol. 17, No. 15 (Aug. 1, 1978) pp. 2273-2279.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical modulation device and 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 Optical modulation device and projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical modulation device and projector will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-358857

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.