Invention Grant
- Patent Title: Light emitting device
- Patent Title (中): 发光装置
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Application No.: US12094136Application Date: 2005-12-28
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Publication No.: US08278678B2Publication Date: 2012-10-02
- Inventor: Mikio Masui , Youji Urano
- Applicant: Mikio Masui , Youji Urano
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Cheng Law Group, PLLC
- Priority: JP2005-336192 20051121
- International Application: PCT/JP2005/024033 WO 20051228
- International Announcement: WO2007/057984 WO 20070524
- Main IPC: H01L23/28
- IPC: H01L23/28 ; H01L23/373

Abstract:
The lighting device (1) includes an LED chip (10), a mounting substrate (20) mounting thereto the LED chip, an encapsulation member (50) made of an encapsulating resin material for encapsulation of the LED chip, and a lens (60) made of a transparent resin material. The lens (60) is provided in its bottom with a recess (40) and is secured to the mounting substrate (20) with the encapsulation member (50) disposed within the recess (40). The encapsulation member (50) is confined within the recess of the lens of the transparent resin material, which minimizes a difference in the coefficient of linear expansion between the encapsulation member and the surroundings for restraining occurrence of voids in the encapsulation member at a low temperature.
Public/Granted literature
- US20090095967A1 LIGHT EMITTING DEVICE Public/Granted day:2009-04-16
Information query
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