Invention Grant
- Patent Title: Lighting device
- Patent Title (中): 照明设备
-
Application No.: US15054093Application Date: 2016-02-25
-
Publication No.: US09587813B2Publication Date: 2017-03-07
- Inventor: Toshiyuki Fujita , Toshio Watanabe , Yusaku Kawabata
- Applicant: ROHM CO., LTD.
- Applicant Address: JP Kyoto
- Assignee: ROHM CO., LTD.
- Current Assignee: ROHM CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Rabin & Berdo, P.C.
- Priority: JP2008-206865 20080811; JP2008-317048 20081212; JP2008-324837 20081222; JP2009-003727 20090109; JP2009-108334 20090427
- Main IPC: F21V23/00
- IPC: F21V23/00 ; F21S8/02 ; H05B33/08 ; F21V23/02 ; F21Y101/00
Abstract:
A lighting device includes a substrate and a planar light source portion including a plurality of LED chips arrayed on the substrate. The planar light source portion faces an illumination space (space to be illuminated) by a predetermined opening area. The plurality of LED chips are arrayed on the substrate such that the mounting density with respect to the opening area is not less than 3/cm2, and accordingly, a planar light source is formed.
Public/Granted literature
- US20160178174A1 LIGHTING DEVICE Public/Granted day:2016-06-23
Information query
