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:
Apr. 06, 2004
Filed:
Nov. 13, 2001
Moriyasu Kanai, Saitama-ken, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
An image separating device connected to a rigid endoscope has a Pechan prism to shift the optical axis of an objective optical system contained in the rigid endoscope, X- and Y-stages and a moving mechanism for moving the Pechan prism in a direction perpendicular to the optical axis of the objective optical system, and an enlarging optical system having an optical axis parallel with the optical axis of the objective optical system. As the Pechan prism is shifted, the image formed through the objective optical system is relatively shifted within its image plane, so that the image re-formed through a first image re-forming optical system is picked up by a first CCD camera without any decentering aberration, inclination relative to a direction perpendicular to the optical axis of the first image re-forming optical system, nor image rotation about the optical axis.