Invention Grant
- Patent Title: Light-emitting device and illuminating apparatus comprising the light-emitting device
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Application No.: US14406774Application Date: 2013-06-11
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Publication No.: US09677719B2Publication Date: 2017-06-13
- Inventor: Yuanyuan He , Yaojun Feng , Yusheng Ming , Hua Wang
- Applicant: OSRAM GmbH
- Applicant Address: DE Munich
- Assignee: OSRAM GmbH
- Current Assignee: OSRAM GmbH
- Current Assignee Address: DE Munich
- Agency: Viering, Jentschura & Partner mbB
- Priority: CN201210192005 20120611
- International Application: PCT/EP2013/062006 WO 20130611
- International Announcement: WO2013/186202 WO 20131219
- Main IPC: H01L33/50
- IPC: H01L33/50 ; F21K99/00 ; F21K9/64

Abstract:
A light-emitting device may include a substrate, a light source arranged on the substrate, and a cover part spaced a certain distance apart from the light source and transmitting light emitted from the light source to outside. The cover part includes a first part, converting wavelengths of a part of light in light emitted from the light source and having different thicknesses at least in two different light-emitting directions of the light source, and a second part, having different thicknesses in the two different light-emitting directions to compensate the thicknesses of the first part.
Public/Granted literature
- US20150153009A1 Light-emitting Device and Illuminating Apparatus Comprising the Light-emitting Device Public/Granted day:2015-06-04
Information query
IPC分类: