Title:
発光装置
Document Type and Number:
Japanese Patent JP7428869
Kind Code:
B2
Abstract:
A light emitting device includes: a light emitting element having a light emission peak wavelength in a range of 380 nm or more and 485 nm or less; a wavelength conversion member including a fluorescent material layer disposed on a light emission side of the light emitting element and containing a fluorescent material having a reflectance to light having a wavelength of 450 nm of 10% or less and a light emission peak wavelength in a range of 610 nm or more and 780 nm or less, and a dielectric multilayer film disposed on a light emission side of the fluorescent material layer.
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Inventors:
Makiko Iwaasa
Yuji Sato
Miyuki Kurata
Yuji Sato
Miyuki Kurata
Application Number:
JP2019177776A
Publication Date:
February 07, 2024
Filing Date:
September 27, 2019
Export Citation:
Assignee:
Nichia Corporation
International Classes:
H01L33/50; C09K11/64; H01L33/60
Domestic Patent References:
| JP2018107418A | ||||
| JP2018078285A | ||||
| JP2018022844A | ||||
| JP2019029386A | ||||
| JP2015529707A |
Foreign References:
| US20160343917 | ||||
| KR1020110115509A |
Attorney, Agent or Firm:
Patent Attorney Corporation Ichizawa / Kawada International Patent Office