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:
Jul. 06, 2004
Filed:
Aug. 23, 2002
Itsuji Minami, Saitama, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Abstract
An electronic endoscope equipped with an electronic zoom IC circuit that optically scales an object under observation using power scaling lenses and performs electronic power scaling processing on an image obtained by a CCD, wherein the electronic endoscope sets a predetermined depth of field by driving the power scaling lenses with the image optically magnified based on an operation of a variable depth switch and maintains the magnification immediately before this switch operation through electronic power scaling processing. This makes it possible to change a depth of field and observe an image magnified under an equal magnification focused in the depth direction on the monitor. The electronic endoscope can also form a plurality of still images of different depths of field based on an operation of the freeze switch and record optimal still images.