Invention Grant
- Patent Title: Lighting apparatus
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Application No.: US16260957Application Date: 2019-01-29
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Publication No.: US11085605B2Publication Date: 2021-08-10
- Inventor: Daisuke Iwakura
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan
- Agency: Birch, Stewart, Kolasch & Birch LLP
- Priority: JPJP2018-013643 20180130
- Main IPC: F21V9/32
- IPC: F21V9/32 ; F21S43/20 ; F21V9/08 ; F21S43/16 ; H01L25/075 ; C09K11/64 ; H01L33/50 ; H01L33/60 ; C09K11/77 ; H01L33/48 ; F21V9/40 ; B60Q1/44 ; B60Q1/34 ; F21W103/35 ; F21W103/20

Abstract:
A lighting apparatus includes light emitting elements having an emission peak wavelength of 400 to 510 nm, a first phosphor having an emission peak wavelength of 485 to 700 nm, a second phosphor having an emission peak wavelength of 510 to 590 nm, a third phosphor having an emission peak wavelength of 600 to 700 nm, and a color filter having transmittance for light with a wavelength of 600 to 730 nm that is 80% or more and transmittance for light with a wavelength of 410 to 480 nm that is 3% or more and 50% or less. The color filter transmits a part of light emitted from the first phosphor, at least a part of light emitted from the second phosphor, and at least a part of light emitted from the third phosphor. Light transmitted through the color filter is emitted to the outside.
Public/Granted literature
- US20190234581A1 LIGHTING APPARATUS Public/Granted day:2019-08-01
Information query
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