Invention Grant
- Patent Title: LED lamp
- Patent Title (中): 点灯
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Application No.: US12836219Application Date: 2010-07-14
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Publication No.: US08405307B2Publication Date: 2013-03-26
- Inventor: Tadashi Yano , Masanori Shimizu , Kiyoshi Takahashi
- Applicant: Tadashi Yano , Masanori Shimizu , Kiyoshi Takahashi
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2004-001635 20040107
- Main IPC: H05B33/00
- IPC: H05B33/00

Abstract:
An LED lamp 100 includes: an LED chip 10; a phosphor resin portion 12 that covers the LED chip 10; and a light-transmissive member 20 that covers the phosphor resin portion 12. The phosphor resin portion 12 includes: a phosphor for converting the emission of the LED chip 10 into light that has a longer wavelength than the emission; and a resin in which the phosphor is dispersed. The surface of the light-transmissive member 20 includes an upper surface portion 22 located over the LED chip 10 and a side surface portion 24 located around and below the upper surface portion 22. At least a part (low-transmittance part 26) of the side surface portion 24 of the light-transmissive member 20 has lower transmittance than the upper surface portion 22.
Public/Granted literature
- US20110006673A1 LED LAMP Public/Granted day:2011-01-13
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