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:
Jan. 26, 2010
Filed:
Jun. 12, 2006
Shunichi Ito, Tokyo, JP;
Shunichi Ito, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A light source apparatus for an electronic endoscope includes a light source; a rotary shutter including a pair of aperture controlling rotary plates; a first planetary gear mechanism including a first internal tooth gear, a first sun gear rotated with one aperture controlling rotary plate, and a first planet gear engaged with the first internal tooth gear and the first sun gear; a second planetary gear mechanism including a second internal tooth gear, a second sun gear rotated with the other aperture controlling rotary plate, and a second planet gear engaged with the second internal tooth gear and the second sun gear; and a carrier device which holds the first and second planet gears. An endless timing belt is installed on an output gear of a phase-difference motor and an input tooth portion of the second internal tooth gear, and includes a meshing portion.