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:
Oct. 17, 2023
Filed:
Aug. 31, 2021
Applicant:
Casio Computer Co., Ltd., Tokyo, JP;
Inventor:
Masahiro Ogawa, Ome, JP;
Assignee:
CASIO COMPUTER CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 26/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G02B 26/008 (2013.01); G03B 21/2066 (2013.01);
Abstract
A phosphor member has a phosphor body configured to absorb excitation light to thereby emit first fluorescent light including a first wavelength component and a second wavelength component having a wavelength shorter than a wavelength of the first wavelength component, and a filter configured to transmit the first wavelength component as light source light and reflect the second wavelength component towards the phosphor body as second excitation light.