Title:
波長変換素子、発光装置、及び、波長変換素子の製造方法
Document Type and Number:
Japanese Patent JP6816007
Kind Code:
B2
Abstract:
A light emitting device includes a wavelength conversion element (1), and an excitation light source (40) which radiates excitation light (81) to the wavelength conversion element (1). The wavelength conversion element (1) includes a support member (2) having a supporting surface (2m), and a wavelength conversion member (4) disposed on the supporting surface (2m) so as to be contained within the support member (2) in a top view of the support member (2) from the supporting surface (2m) side. An outer peripheral region (2e) on the support member (2), which is an outer peripheral portion of an arrangement region (2p) including the wavelength conversion member (4) and is exposed from the wavelength conversion member (4), includes a light absorbing portion which can absorb first light having the same wavelength as that of the excitation light (81) or a light scattering portion (2s) which can scatter the first light. The arrangement region (2p) includes a reflective member (reflective film (3)) disposed between the wavelength conversion member (4) and the support member (2), the reflective member being different from the support member (2).
Inventors:
Kazuhiko Yamanaka
Kasugai Hidenori
Hirotaka Ueno
Kimihiro Murakami
Kasugai Hidenori
Hirotaka Ueno
Kimihiro Murakami
Application Number:
JP2017546399A
Publication Date:
January 20, 2021
Filing Date:
October 14, 2016
Export Citation:
Assignee:
Nuvoton Technology Japan Corporation
International Classes:
G02B5/20; F21S41/16; F21V7/30; G02B5/02; G02B5/08
Domestic Patent References:
| JP2012089316A | ||||
| JP2015050124A | ||||
| JP2012093454A | ||||
| JP2012222050A | ||||
| JP2012099222A |
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka