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. 29, 1991
Filed:
May. 16, 1989
Applicant:
Inventors:
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128-6 ;
Abstract
An electronic endoscope using a solid-state image pickup device has a filter arranged in the foreground of the solid-state image pickup device within the body of the endoscope for removing lights having wavelengths not related to observation in order to effectively eliminate those light components which are not required for the observation from among those lights incident to the solid-state image pickup device. As such a filter, either a lens component constituting the objective lens or an illuminating lens can be used.