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. 01, 2012
Filed:
May. 10, 2007
Kiyoshi Negishi, Saitama, JP;
Kiyoshi Negishi, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
An endoscope light source unit for making illumination light incident on a light guide, includes a rotary aperture plate, aperture openings of different opening ratios and an auxiliary-light aperture opening of a maximum opening ratio formed in the rotary aperture plate; a rotating device; an auxiliary light; a first sensing portion and a plurality of second sensing portions formed in the rotary aperture plate in association with the auxiliary-light aperture opening and the aperture openings; a first sensor which detects the first sensing portion; a second sensor which detects the first sensing portion and detects the second sensing portions; and a controller which controls the rotary aperture plate in accordance with the first and/or second sensors. When the auxiliary light is in the retracted position, the controller drives the rotary aperture plate while the second sensor detects the first sensing portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile