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:
Jul. 06, 2021
Filed:
Nov. 24, 2019
Olympus Corporation, Hachioji, JP;
Kazuto Fujiwara, Saitama, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
An endoscope light source device includes: a plurality of solid-state light sources; a plurality of collimating lenses that respectively collimate light beams emitted from the plurality of solid-state light sources into substantially parallel light beams; a multiplexing optical member that multiplexes the light beams that have been collimated into substantially parallel light beams by the plurality of collimating lenses; at least one diaphragm disposed between at least one of the plurality of solid-state light sources and a corresponding at least one of the plurality of collimating lenses; and a focusing lens that focuses multiplexed light beams from the plurality of solid-state light sources and causes the light beams to enter an end surface of a light guide of an endoscope, wherein the at least one diaphragm blocks more peripheral light as an optical path length from each of the plurality of solid-state light sources to the focusing lens becomes smaller.