Optics arrangements including light source arrangements for an a

Liquid crystal cells – elements and systems – Particular structure – Particular illumination

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

349 57, 362240, 362246, 362800, 359619, G02F 11335, F21V 500

Patent

active

060380055

ABSTRACT:
A system for producing modulated light is disclosed. The system comprises a spatial light modulator including a light modulating medium switchable between different states so as to act on light in ways which form overall patterns of modulated light. The system also includes an arrangement for switching the modulating medium between the different states in a controlled way and an illumination arrangement for producing a source of light. The system further includes an optics arrangement for directing light from the source of light into the spatial light modulator and for directing light from the spatial light modulator through a predetermined source imaging area. The optics arrangement cooperates with the illumination arrangement and the spatial light modulator so as to produce a real image of the source of light within the source imaging area such that an individual is able to view a virtual image of the overall patterns of modulated light from the source imaging area. A variety of novel optics arrangements are disclosed including specific combinations of different light sources, diffusing plates, polarizers, beam splitters, analyzers, lenses, mirrors, and holographic optical elements which allow the overall optical arrangement to be miniaturized to the same degree and in coordination with the spatial light modulator. The different light sources include using a plurality of light sources, such as LEDs, to form an array of light sources, each of the light sources providing light to a corresponding portion of the spatial light modulator.

REFERENCES:
patent: 5061049 (1991-10-01), Hornbeck
patent: 5083857 (1992-01-01), Hornbeck
patent: 5096279 (1992-03-01), Hornbeck
patent: 5151718 (1992-09-01), Nelson
patent: 5280277 (1994-01-01), Hornbeck
patent: 5467215 (1995-11-01), Lebby et al.
patent: 5485318 (1996-01-01), Lebby et al.
patent: 5504514 (1996-04-01), Nelson
patent: 5539554 (1996-07-01), Lebby et al.
patent: 5580156 (1996-12-01), Suzuki et al.
patent: 5703664 (1997-12-01), Jachimowicz et al.
patent: 5764329 (1998-06-01), Chen et al.
patent: 5771124 (1998-06-01), Kintz et al.
Juris Upatnicks; "Edge-Illuminated Holograms"; Mar. 10, 1992; Optics 31, (8) 1048.
C. Carre and S. Habraken and St. Roose; "Computer-Originated Polarizing Holographic Optical Element Recorded in Photopolymerizable Layers"; May 1, 1993; Opt. Lett. 18, (9) 738.
L.D. Dickson and R.D. Rallison and B.H. Yung; "Holographic Polarization-Separation Elements"; Aug. 10, 1994; Applied Optics 33, (23) 5378-5385.

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

Optics arrangements including light source arrangements for an a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optics arrangements including light source arrangements for an a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optics arrangements including light source arrangements for an a will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-174727

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