ENDOSCOPE APPARATUS

To provide an endoscope apparatus that comprises an object lens with a minute outside diameter and a minute thickness, appropriate for attachment to the tip of an ultrafine image guide fiber.SOLUTION: In an endoscope apparatus 1, an optical image of an imaging object, which is acquired by an object...

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Bibliographic Details
Main Author KUMAGAI TOSHIKI
Format Patent
LanguageEnglish
Japanese
Published 21.10.2021
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SURGERY
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Summary:To provide an endoscope apparatus that comprises an object lens with a minute outside diameter and a minute thickness, appropriate for attachment to the tip of an ultrafine image guide fiber.SOLUTION: In an endoscope apparatus 1, an optical image of an imaging object, which is acquired by an object lens 5, is extracted via an image guide fiber 6 that is constituted by bundling a plurality of optical fibers together. A graded index-type optical fiber with a prescribed length, which is fusion-welded to an incident-side end surface 61 of the image guide fiber 6, is used as the object lens 5.SELECTED DRAWING: Figure 1 【課題】極細のイメージガイドファイバーの先端に取り付けるのに適した微小外径、微小厚さの対物レンズを備えた内視鏡装置を提供すること。【解決手段】内視鏡装置１は、対物レンズ５で取得した撮影対象の光学像が、複数本の光ファイバーを束ねた構成のイメージガイドファイバー６を介して取り出される。対物レンズ５として、イメージガイドファイバー６の入射側端面６１に融着接合した所定長さのグレーテッドインデックス型光ファイバーを用いている。【選択図】図１
Bibliography:Application Number: JP20200071303