The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2019
Filed:
May. 14, 2018
Casio Computer Co., Ltd., Tokyo, JP;
Masahiro Ogawa, Ome, JP;
CASIO COMPUTER CO., LTD, Tokyo, JP;
Abstract
An embodiment provides a light source unit including an excitation light source for emitting excitation light, and a luminescent material wheel where a first area and a second area are disposed circumferentially, the first area having a first luminescent material layer for converting the excitation light into light of a first wavelength range, the second area having a second luminescent material layer for converting the excitation light into light of a second wavelength range adjoining the first wavelength range, wherein a reflecting portion to reflect the light of the first wavelength range is provided on an opposite side of the first luminescent material layer to a surface where the excitation light is shone, and wherein a transmitting portion for transmitting the light of the second wavelength range is provided on an opposite side of the second luminescent material layer to a surface where the excitation light is shone.