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Patent Searching and Data


Title:
LIGHT SOURCE DEVICE AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/069937
Kind Code:
A1
Abstract:
A light source device of the present disclosure is provided with: a sapphire plate including a first surface and a second surface opposing each other; a wavelength converting material positioned opposite the first surface of the sapphire plate; and a first excitation light source which emits, toward the wavelength converting material through the second surface, first excitation light having a directivity. The first surface and the second surface form an angle of more than 89° and less than 91° with the c-axis of sapphire. The c-axis and the optical axis of the first excitation light form an angle of not less than 1°.

Inventors:
KUBO, Yoshinori (6 Takeda Tobadono-cho Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
Application Number:
JP2018/036910
Publication Date:
April 11, 2019
Filing Date:
October 02, 2018
Export Citation:
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Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
International Classes:
F21V29/502; F21S41/16; F21S45/40; F21V9/30; F21V29/70; F21V29/85; H01L33/50; H01S5/02; F21W102/13; F21Y115/10; F21Y115/30
Foreign References:
US20150167905A12015-06-18
JP2015036790A2015-02-23
JP2017009823A2017-01-12
JP2013030720A2013-02-07
JP2017123348A2017-07-13
Attorney, Agent or Firm:
FUKAI, Toshikazu (OMM Bldg. 8th Floor, 7-31 Otemae 1-chome, Chuo-ku, Osaka-sh, Osaka 91, 〒5406591, JP)
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