Title:
光源装置および照明装置
Document Type and Number:
Japanese Patent JP6905070
Kind Code:
B2
Abstract:
A light source device of the present disclosure is provided with: a sapphire plate having a first surface and a second surface opposing each other; a wavelength conversion material located opposite to the first surface of the sapphire plate; and a first excitation light source which emits first excitation light having directivity to the wavelength conversion material through the second surface. The first surface and the second surface form an angle larger than 89° and smaller than 91°with a c-axis of sapphire, and an angle between the c-axis and an optical axis of the first excitation light is 1° or larger.
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Inventors:
Kubo Yoshinori
Application Number:
JP2019546741A
Publication Date:
July 21, 2021
Filing Date:
October 02, 2018
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
F21V29/502; F21S41/176; F21V9/32; G02B5/20; G02B5/26; H01S5/022
Domestic Patent References:
| JP2015036790A | ||||
| JP2017009823A | ||||
| JP2013030720A | ||||
| JP2017123348A |
Foreign References:
| US20150167905 |
Attorney, Agent or Firm:
Beech International Patent Office