Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2011-01-11
2011-01-11
Koslow, C. Melissa (Department: 1734)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C252S30140R
Reexamination Certificate
active
07868535
ABSTRACT:
The present invention is a light emitting device which uses a specific phosphor powder. The phosphor powder is a combination of cerium (Ce) and lithium aluminum oxide (LiAlO2). They are mixed under a specific range of composition ratio. With the specific phosphor powder applied, the light emitting device has advantages in a low cost, a reduced power consumption, an easy production, a long life, and so on. In addition, a transformation efficiency of the phosphor powder is high and so a light emitting efficiency of the light emitting device is enhanced.
Chou Mitch M. C.
Hsu Wen-Ching
Wei Cheng-Hung
Hoban Matthew E
Jackson Demian K.
Jackson IPG PLLC
Koslow C. Melissa
National Sun Yat-Sen University
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