3D endoscope with optical switch and prism arrangement

Details 3D endoscope with optical switch and prism arrangement 3D endoscope with optical switch and prism arrangement

1997-01-07

1999-08-31

Leubecker, John P.

Surgery

Endoscope

Having imaging and illumination means

600111, A61B 1002

Patent

active

059446552

ABSTRACT:
In a 3D video endoscope, two lenses are disposed at the front end of a shank portion at a certain squint angle providing for two separate beam paths in each of which an optical switch is disposed and the switches are so controlled that they are alternately transparent and opaque, one being transparent, while the other is opaque, and a beam deflection arrangement is disposed in the beam paths for directing the beams along a single axis into an opto-electronic camera which provides electrical output signals representing alternately the pictures generated by the two front lenses.

REFERENCES:
patent: 3520587 (1970-07-01), Tasaki
patent: 4862873 (1989-09-01), Yajima et al.
patent: 4924853 (1990-05-01), Jones, Jr. et al.

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