Invention Grant
US09076979B2 Organic electroluminescent element, lighting fixture, and food storage device
有权
有机电致发光元件，照明灯具和食品储存装置
- Patent Title: Organic electroluminescent element, lighting fixture, and food storage device
- Patent Title (中): 有机电致发光元件，照明灯具和食品储存装置
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Application No.: US14006415Application Date: 2012-03-13
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Publication No.: US09076979B2Publication Date: 2015-07-07
- Inventor: Hirofumi Kubota , Varutt Kittichungchit , Hiroya Tsuji
- Applicant: Hirofumi Kubota , Varutt Kittichungchit , Hiroya Tsuji
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2011-066563 20110324
- International Application: PCT/JP2012/056351 WO 20120313
- International Announcement: WO2012/128116 WO 20120927
- Main IPC: H01L51/54
- IPC: H01L51/54 ; F21W131/305 ; H01L51/52 ; H01L51/50 ; F21V33/00
Abstract:
The object of the present invention is to provide an organic electroluminescent element suitable for both food lighting at a low temperature and indoor lighting at room temperature. The organic electroluminescent element according to the present invention has such characteristics that a maximum of a general color rendering index Ra in a range of an element temperature of 5° C. to 60° C. is present in a range of the element temperature of 15° C. to 35° C. and that at least one of maxima of special color rendering indexes R10, R11, R12, and R13 in the range of the element temperature of 5° C. to 60° C. is present in a range of the element temperature of 5° C. to 35° C.
Public/Granted literature
- US20140009918A1 ORGANIC ELECTROLUMINESCENT ELEMENT, LIGHTING FIXTURE, AND FOOD STORAGE DEVICE Public/Granted day:2014-01-09
Information query
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