View direction changing optical system for endoscopes

Details View direction changing optical system for endoscopes View direction changing optical system for endoscopes

1984-09-20

1988-03-15

Corbin, John K.

350 9626, 350447, G02B 2326, G02B 1700, G02B 2302

Patent

active

047309091

ABSTRACT:
A view direction changing optical system provided with a first optical member having a first reflecting surface for bending downward the optical axis along the lengthwise direction of an endoscope and a second optical member arranged adjacently to the lower part of the front side of the first optical member and having two second reflecting surfaces for further bending toward a predetermined oblique view direction the optical axis bent by the first reflecting surface, to make it possible to provide a compact endoscope capable of rear viewing.

REFERENCES:
patent: 4173394 (1979-11-01), Clave et al.

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