Invention Grant
- Patent Title: Light emitting device with translucent ceramic plate
- Patent Title (中): 具有半透明陶瓷板的发光装置
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Application No.: US12389207Application Date: 2009-02-19
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Publication No.: US08169136B2Publication Date: 2012-05-01
- Inventor: Toshitaka Nakamura , Hironaka Fujii , Hiroaki Miyagawa , Rajesh Mukherjee , Bin Zhang , Amane Mochizuki
- Applicant: Toshitaka Nakamura , Hironaka Fujii , Hiroaki Miyagawa , Rajesh Mukherjee , Bin Zhang , Amane Mochizuki
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H01J1/63
- IPC: H01J1/63 ; H01L33/00

Abstract:
A light emitting device comprising a light emitting component that emits light with a first peak wavelength, and at least one sintered ceramic plate over the light emitting component is described. The at least one sintered ceramic plate is capable of absorbing at least a portion of the light emitted from said light emitting component and emitting light of a second peak wavelength, and has a total light transmittance at the second peak wavelength of greater than about 40%. A method for improving the luminance intensity of a light emitting device comprising providing a light emitting component and positioning at least one translucent sintered ceramic plate described above over the light emitting component is also disclosed.
Public/Granted literature
- US20090212697A1 LIGHT EMITTING DEVICE WITH TRANSLUCENT CERAMIC PLATE Public/Granted day:2009-08-27
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