Sequential color display device including light shading means

Details Sequential color display device including light shading means Sequential color display device including light shading means

2006-02-28

2006-02-28

Sember, Thomas M. (Department: 2875)

Illumination

Light source and modifier

Plural serial lens elements or components

C362S276000, C362S277000, C362S293000

Reexamination Certificate

active

07004604

ABSTRACT:
A projection display device includes a condensing unit and a shading unit. The condensing unit condenses light emitted from a light source to form a condensed spot on a color wheel. The shading unit, when a size of the condensed spot on the color wheel has increased due to an increase in light emission of the light source, shades a portion of the light passing through the color wheel corresponding to the increased size.

REFERENCES:
patent: 3603722 (1971-09-01), Graham
patent: 3781465 (1973-12-01), Ernstoff et al.
patent: 4523224 (1985-06-01), Longacre, Jr.
patent: 5046162 (1991-09-01), Ishikawa et al.
patent: 5220464 (1993-06-01), Lin
patent: 5233385 (1993-08-01), Sampsell
patent: 5339107 (1994-08-01), Henry et al.
patent: 5379083 (1995-01-01), Tomita
patent: 5410370 (1995-04-01), Janssen
patent: 5448314 (1995-09-01), Heimbuch et al.
patent: 5467146 (1995-11-01), Huang et al.
patent: 5528714 (1996-06-01), Kingstone et al.
patent: 5541679 (1996-07-01), Yang
patent: 5623349 (1997-04-01), Clarke
patent: 5774196 (1998-06-01), Marshall
patent: 5779353 (1998-07-01), Kacheria
patent: 5788365 (1998-08-01), Hunt et al.
patent: 5868482 (1999-02-01), Edlinger et al.
patent: 6024453 (2000-02-01), Edlinger et al.
patent: 6046782 (2000-04-01), Hayakawa
patent: 6048080 (2000-04-01), Belliveau
patent: 6113252 (2000-09-01), Arlitt et al.
patent: 6220730 (2001-04-01), Hewlett et al.
patent: 6520644 (2003-02-01), Lee
patent: 6683657 (2004-01-01), Miyawaki

Affiliated with

Also associated with

Rating

Sequential color display device including light shading means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sequential color display device including light shading means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sequential color display device including light shading means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3677245