Compact projection systems using multiple light sources
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 23, 2007
Grant Date -
Jul 21, 2005
app pub date -
Jan 19, 2005
filing date -
Jan 20, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a projection system using multiple light sources (1) at the same time. The projection system (100) comprises multiple light sources (1), a lens array system for each of the light sources (1), a condenser lens (2), an aperture means (3), a light valve assembly and a projection lens (5) to project an image. The light sources are adapted to each simultaneously illuminate the whole light valve assembly. In one aspect, the invention relates to a system and methods for allowing separately control of brightness, contrast, dichroic color shift or beam uniformity. This controlling or adjustment is performed by controlling and/or adjusting the cross-section of the illumination beam of each of the multiple light sources near the aperture of the aperture means.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully