Illumination device and application thereof to the illumination

Details Illumination device and application thereof to the illumination Illumination device and application thereof to the illumination

1997-07-16

2000-01-11

Kim, Robert H.

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 61, 349 69, G02F 11335

Patent

active

060141921

ABSTRACT:
An illumination device comprises a light source coupled to a waveguide. the waveguide comprises a diffracting element capable of diffracting emergent light rays coming from the source, in a direction substantially perpendicular to the surface of the waveguide. A device of this kind is particularly well-suited to transmissive display screens of the liquid crystal display screen type. It can generate a highly collimated, polarized light.

REFERENCES:
patent: 4319322 (1982-03-01), Allain et al.
patent: 4451412 (1984-05-01), Loiseaux et al.
patent: 4576434 (1986-03-01), Huignard et al.
patent: 4847521 (1989-07-01), Huignard et al.
patent: 5181054 (1993-01-01), Nicolas et al.
patent: 5206674 (1993-04-01), Puech et al.
patent: 5211463 (1993-05-01), Kalmanash
patent: 5258969 (1993-11-01), Refregier et al.
patent: 5272496 (1993-12-01), Nicolas et al.
patent: 5323372 (1994-06-01), Puech et al.
patent: 5410421 (1995-04-01), Huignard et al.
patent: 5416617 (1995-05-01), Loiseaux et al.
patent: 5467206 (1995-11-01), Loiseaux et al.
patent: 5526063 (1996-06-01), Joubert et al.
patent: 5546200 (1996-08-01), Nicolas et al.
patent: 5621547 (1997-04-01), Loiseaux et al.
Armonk. NY. US, "Liquid crystal display backlight with polarization", IBM Technical Disclosure Bulletin, vol. 38, No. 2 Feb. 1995, pp. 533-535.

Affiliated with

Also associated with

Rating

Illumination device and application thereof to the illumination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Illumination device and application thereof to the illumination , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illumination device and application thereof to the illumination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1466297