Title:
【発明の名称】内視鏡の先端部
Document Type and Number:
Japanese Patent JP3034019
Kind Code:
B2
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.
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Inventors:
Yoshitoki Ito
Hiroshi Iwata
Hiroshi Iwata
Application Number:
JP32141890A
Publication Date:
April 17, 2000
Filing Date:
November 26, 1990
Export Citation:
Assignee:
Asahi Optical Co., Ltd.
International Classes:
G02B23/26; A61B1/00; A61B1/04; A61B1/05; (IPC1-7): G02B23/26
Domestic Patent References:
| JP63177106A | ||||
| JP62255913A |
Attorney, Agent or Firm:
Kazuhiko Mitsui