Patent ID: 6976956
Filing Date: 2005-12-20
Classification: A61B,G02B

Abstract:
1. An endoscope comprising: an elongated inserted section; an illuminating light projecting means projecting an illuminating light from the distal end side of said inserted section; an objective optical system arranged on the distal end side of said inserted section, having at least two optical systems receiving the light from an object illuminated by said illuminating light and forming at least two images not equal to each other; and one image transmitting optical system having single optical axis and being formed to be of a size equal to or larger in the radial direction than a size of said objective optical system, and arranged within said inserted section and transmitting said two images in common, wherein said objective optical system has said two optical systems arranged in parallel on an object side and one optical system arranged in common on the image side of said two optical systems and said two optical systems are formed of negative lenses.