发明授权
- 专利标题： Light-emitting device and lighting apparatus
- 专利标题（中）： 发光装置及照明装置
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申请号： US13236672申请日： 2011-09-20
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公开(公告)号： US08770795B2公开(公告)日： 2014-07-08
- 发明人: Kozo Uemura , Soichi Shibusawa , Shuhei Matsuda , Nobuhiko Betsuda , Kiyoshi Nishimura , Masatoshi Kumagai
- 申请人： Kozo Uemura , Soichi Shibusawa , Shuhei Matsuda , Nobuhiko Betsuda , Kiyoshi Nishimura , Masatoshi Kumagai
- 申请人地址： JP Kanagawa
- 专利权人： Toshiba Lighting & Technology Corporation
- 当前专利权人： Toshiba Lighting & Technology Corporation
- 当前专利权人地址： JP Kanagawa
- 代理机构： DLA Piper LLP (US)
- 优先权： JP2010-214767 20100927
- 主分类号： F21V21/00
- IPC分类号： F21V21/00
摘要：
A light-emitting device includes a substrate, and a plurality of light-emitting elements mounted on the substrate. The light-emitting elements are placed to meet conditions that the number B of light-emitting elements per unit area (cm2) of a mounting part is not less than 0.4 and a mean mounting density D is not less than 58 to not greater than 334, when a relationship of formula “D=A×B” is established, assuming D as a mean mounting density of light-emitting elements on a substrate, A as a current (mA) flowing through one light-emitting element, and B as the number of light-emitting elements per unit area (cm2) of a substantial mounting part for light-emitting elements.
公开/授权文献
- US20120075836A1 LIGHT-EMITTING DEVICE AND LIGHTING APPARATUS 公开/授权日：2012-03-29