Invention Grant
- Patent Title: Lighting apparatus with lower color temperature lighting to a peripheral region
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Application No.: US15447706Application Date: 2017-03-02
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Publication No.: US10222007B2Publication Date: 2019-03-05
- Inventor: Yoko Matsubayashi , Tohru Himeno , Hiroko Koiwa
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 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: JP2016-041444 20160303
- Main IPC: F21K9/61
- IPC: F21K9/61 ; F21V3/06 ; F21V3/00 ; F21V19/00 ; F21V23/00 ; F21V8/00 ; F21S8/04 ; F21Y105/12 ; F21Y105/18 ; F21Y113/13 ; F21Y115/10 ; F21Y113/00

Abstract:
A lighting apparatus is provided. The lighting apparatus includes a first light distributor which illuminates a predetermined region, and a second light distributor which illuminates a periphery of the predetermined region. The first light distributor includes a first light emitting element having a spectral emission characteristic defined by a correlated color temperature of light being at least 5400 K and at most 7000 K, Duv being in a range of −6 to 5 inclusive, a chroma value calculated using a calculation method specified by the CIE 1997 Interim Color Appearance Model (Simple Version) being 2.7 or less, and a general color rendering index Ra being 80 or more. The second light distributor includes a second light emitting element having a spectral emission characteristic defined by a correlated color temperature of light being lower than the correlated color temperature of the light emitted by the first light emitting element.
Public/Granted literature
- US20170254487A1 LIGHTING APPARATUS Public/Granted day:2017-09-07
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