Multi-primary LED projection system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 15, 2011
Grant Date -
Jun 19, 2008
app pub date -
Dec 13, 2006
filing date -
Dec 13, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multi-primary light emitting diode system includes the use of a polarization based dichroic element to combine light from different color channels. At least one of the color channels includes two light emitting diodes that produce light with a different range of wavelengths. The use of the polarization based dichroic element permits overlapping spectra from different color channels to be combined without loss. Accordingly, the brightness of the system is improved relative to conventional systems in which losses occur when combining overlapping spectra from different channels.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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