Structure of the distal end portion of an endoscope

Details Structure of the distal end portion of an endoscope Structure of the distal end portion of an endoscope

1991-11-26

1995-06-27

Apley, Richard J.

Surgery

Truss

Perineal

128 6, A61B 104

Patent

active

054270871

ABSTRACT:
The distal end body of an endoscope accommodates an objective optical system, and a solid-state image pick-up element having a light receiving surface is disposed axially in parallel with the center axis of the objective optical system. A prism is disposed such that the optical axis of the objective optical system is perpendicular to the center axis of the light receiving surface. An object is imaged on the light receiving surface of the solid-state image pick-up element, through the objective optical system. The prism is shaped like a trapezoid in cross-section to minimize the size of the endoscope.

REFERENCES:
patent: 4741327 (1988-05-01), Yabe
patent: 4832003 (1989-05-01), Yabe
patent: 4895138 (1990-01-01), Yabe

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