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Patent

Optical viewing instrument

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TLDR
In this article, an optical means having inclined forward end surface is located in front of a magnifying objective lens system so that the optical means easily penetrates into the part to be examined by the microscope.
Abstract
Microscope adapted to be inserted into the spaces in a living body for direct examination of the interior surfaces thereof and having a magnifying objective lens system, a fiber optical viewing system, eyepiece means for observing the magnified image formed on the rear end surface of said fiber optical viewing system by transmitting the image of the object focused on the forward end surface of said fiber optical viewing system transmitting at high degree of magnification by means of said objective lens system through said fiber optical viewing system to the rear end surface thereof, and fiber optical illuminating system, wherein an optical means having inclined forward end surface is located in front of said magnifying objective lens system so that the optical means easily penetrates into the part to be examined by the microscope, the image of the object contacting the inclined forward end surface of said optical means being focused by means of said objective lens system on the forward end surface of said fiber optical viewing system at high degree of magnification.

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