Invention Grant
- Patent Title: LED lamp
- Patent Title (中): 点灯
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Application No.: US10585456Application Date: 2004-12-21
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Publication No.: US07791274B2Publication Date: 2010-09-07
- 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
- International Application: PCT/JP2004/019088 WO 20041221
- International Announcement: WO2005/067066 WO 20050721
- Main IPC: H01J1/62
- IPC: H01J1/62

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
- US20090135581A1 Led Lamp Public/Granted day:2009-05-28
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