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. 23, 2012
Filed:
Dec. 08, 2008
Kyosuke Mizuno, Hachioji, JP;
Kyosuke Mizuno, Hachioji, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Abstract
A light source apparatus capable of controlling a quantity of light in a stable manner and an endoscope apparatus including the light source apparatus are provided. The light source apparatus includes a light source and a light quantity adjusting portion for limiting the light flux from the light source using an aperture blade. The light quantity adjusting portion includes the aperture blade which is driven to rotate in a vertical plane about a pivot and has a center of gravity which is decentered from the pivot, a position detecting portion for detecting a position of the aperture blade, a driving portion, and a light source controlling portion for controlling the driving portion. The light source controlling portion controls the driving portion based on the position of the aperture blade and a rotation direction.