Full spectrum phosphor blends for white light generation with LED chips
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 15, 2011
Grant Date -
Nov 29, 2007
app pub date -
Jun 23, 2004
filing date -
Jun 24, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A light emitting device including a phosphor blend including four or more phosphors emitting within a specific spectral range to optimize the color rendering index (CRI) for a given color coordinated temperature (CCT). The blend will include at least four phosphors selected from the following: a blue phosphor having an emission peak at 400-500 nm, a green phosphor having an emission peak at 500-575 nm, an orange phosphor having an emission peak from 575-615 nm, and a deep red phosphor having an emission peak at 615-680 nm. The preferred blends are used to make light sources with general CRI values (R.sub.a) greater than 95 at CCT's from about 2500 to 8000 K.
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