Single-lens reflex optical system for an endoscope

Details Single-lens reflex optical system for an endoscope Single-lens reflex optical system for an endoscope

1977-03-01

1978-09-12

Henry, Jon W.

Surgery

Truss

Pad

350286, 354 62, 354152, 128 4, G02B 2714, G03B 1912, A61B 104

Patent

active

041133544

ABSTRACT:
A single-lens reflex optical system for an endoscope comprising a first prism having a reflecting mirror with a small hole located at a position near the aperture stop of the photographing optical system, a second prism cemented to the first prism, and an observing optical system arranged near the exit surface of the second prism. In the above single-lens optical system, the aperture stop of the photographing optical system and aperture stop of the observing optical system are respectively arranged at angles close to a right angle in respect to the corresponding optical axis.

REFERENCES:
patent: 754076 (1904-03-01), Konig
patent: 3918072 (1975-11-01), Imai et al.
patent: 4021823 (1977-05-01), Miyata

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