Invention Grant
US07646035B2 Packaged light emitting devices including multiple index lenses and multiple index lenses for packaged light emitting devices
有权
封装的发光器件包括多个折射率透镜和用于封装的发光器件的多个折射率透镜
- Patent Title: Packaged light emitting devices including multiple index lenses and multiple index lenses for packaged light emitting devices
- Patent Title (中): 封装的发光器件包括多个折射率透镜和用于封装的发光器件的多个折射率透镜
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Application No.: US11443741Application Date: 2006-05-31
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Publication No.: US07646035B2Publication Date: 2010-01-12
- Inventor: Ban P. Loh , Nicholas W. Medendorp, Jr. , Bernd Keller
- Applicant: Ban P. Loh , Nicholas W. Medendorp, Jr. , Bernd Keller
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Myers Bigel Sibley & Sajovec
- Main IPC: H01L29/16
- IPC: H01L29/16
Abstract:
A packaged light emitting device includes a substrate, a solid state light emitting device on the substrate, a first generally toroidal lens on the substrate and defining a cavity relative to the solid state light emitting device and having a first index of refraction, and a second lens at least partially within the cavity formed by the first lens and having a second index of refraction that is different from the first index of refraction. The second index of refraction may be higher than the first index of refraction. The lenses may be mounted on the substrate and/or may formed by dispensing and curing liquid encapsulant materials.
Public/Granted literature
- US20070278512A1 Packaged light emitting devices including multiple index lenses and methods of fabricating the same Public/Granted day:2007-12-06
Information query
IPC分类:
