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:
May. 14, 2024
Filed:
Aug. 08, 2022
Casio Computer Co., Ltd., Tokyo, JP;
Hiroshi Ogino, Higashimurayama, JP;
CASIO COMPUTER CO., LTD., Tokyo, JP;
Abstract
A light source device includes an excitation light irradiation unit that emits excitation light; a rotary wheel unit including a rotary wheel having a filter region that reflects or transmits light in a predetermined wavelength band different from a wavelength band of the excitation light and transmits the excitation light, and a transmission bending region that bends and transmits the excitation light; and a fixed phosphor that is irradiated with the excitation light transmitted through the filter region and emits fluorescence including light in the predetermined wavelength band toward the filter region. The rotary wheel unit is configured so that an optical axis of the excitation light that is transmitted through the rotary wheel or is reflected from the rotary wheel overlaps with an optical axis of the fluorescence in the predetermined wavelength band reflected from the filter region or transmitted through the filter region.