Light source of LED and method for producing light source with varying color while dimming
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 11, 2012
Grant Date -
Oct 13, 2011
app pub date -
Apr 9, 2010
filing date -
Apr 9, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light source of LED includes at least one first LED and at least one second LED. The first LED has a first optical illuminant characteristic varying with a variable operation voltage from a first level to a second level, wherein the first level is larger than the second level. The second LED has a second optical illuminant characteristic varying with the variable operation voltage from a third level to a fourth level, wherein the third level is smaller than the fourth level. The first LED and the second LED are simultaneously controlled by the same variable operation voltage to produce a light.
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