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:
Feb. 23, 2010
Filed:
May. 13, 2008
Susumu Takahashi, Iruma, JP;
Susumu Takahashi, Iruma, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Abstract
An illumination light detecting optical system includes an element emitting excitation light; an insertion part of a long-narrow-shape; a fluorescence luminescence component arranged near a top of the insertion part; an excitation light guiding element which leads the excitation light emitted from the light emitting element to the fluorescence luminescence component; and a light detecting element which detects return light which is a part of the illumination light. The optical system is also provided with a pillar-shaped transparent component for irradiating illumination light arranged coaxially at a forward position of the fluorescence luminescence component; an illuminating-light-extracting-element for extracting the illumination light from the pillar-shaped transparent component, out of the illumination light which enters into the inside of the pillar-shaped transparent component; and a deflecting element by which the extracted illumination light is directed toward the light detecting element.