JPS6357617U - - Google Patents

Info

Publication number
JPS6357617U
JPS6357617U JP14922886U JP14922886U JPS6357617U JP S6357617 U JPS6357617 U JP S6357617U JP 14922886 U JP14922886 U JP 14922886U JP 14922886 U JP14922886 U JP 14922886U JP S6357617 U JPS6357617 U JP S6357617U
Authority
JP
Japan
Prior art keywords
optical axis
endoscope
converting prism
exit side
longitudinal direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14922886U
Other languages
Japanese (ja)
Other versions
JPH0740974Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986149228U priority Critical patent/JPH0740974Y2/en
Publication of JPS6357617U publication Critical patent/JPS6357617U/ja
Application granted granted Critical
Publication of JPH0740974Y2 publication Critical patent/JPH0740974Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案による電子内視鏡用光学系の第
１実施例の概略断面図、第２図は第１実施例の光
軸を延ばして描いた図、第３図は第１実施例の収
差図、第４図及び第５図は夫々第１実施例の一部
の光学素子の位置を変更した場合の収差図、第６
図乃至第１４図は夫々第２乃至第１０実施例の概
略断面図である。 １……先頭凹レンズ、２……正レンズ、３……
視野変換プリズム、４……接合正レンズ、５……
負レンズ、６，６Ａ，６Ｂ……光学的ローパスフ
イルター、７……光路変換プリズム、８……固体
撮像素子、９……明るさ絞り、１０，１１……プ
リズム。 Fig. 1 is a schematic cross-sectional view of a first embodiment of the optical system for electronic endoscope according to the present invention, Fig. 2 is a drawing of the first embodiment with the optical axis extended, and Fig. 3 is a diagram showing the first embodiment. FIGS. 4 and 5 are aberration diagrams when the positions of some optical elements of the first embodiment are changed, and FIGS.
Figures 1 to 14 are schematic sectional views of the second to tenth embodiments, respectively. 1...Top concave lens, 2...Positive lens, 3...
Visual field conversion prism, 4... cemented positive lens, 5...
Negative lens, 6, 6A, 6B... Optical low-pass filter, 7... Optical path conversion prism, 8... Solid-state image sensor, 9... Brightness diaphragm, 10, 11... Prism.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入射光軸の方向が内視鏡の長手方向と異なつて
いる電子内視鏡において、上記入射光軸を内視鏡
の長手方向に略沿つた方向に向ける視野変換プリ
ズムと、該視野変換プリズムの射出側に配置され
ていて光軸を上記入射光軸と略同じ方向に向ける
光路変換プリズムと、該光路変換プリズムの射出
側にて受光面が光軸と略垂直になるように配置さ
れた固体撮像素子とを備えていることを特徴とす
る電子内視鏡用光学系。 In an electronic endoscope in which the direction of the incident optical axis is different from the longitudinal direction of the endoscope, a field-of-view converting prism that directs the incident optical axis in a direction substantially along the longitudinal direction of the endoscope; an optical path converting prism disposed on the exit side with its optical axis directed in substantially the same direction as the incident optical axis; and a solid disposed on the exit side of the optical path converting prism so that its light receiving surface is substantially perpendicular to the optical axis. An optical system for an electronic endoscope, comprising: an image sensor.
JP1986149228U 1986-09-29 1986-09-29 Optical system for electronic endoscope Expired - Lifetime JPH0740974Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986149228U JPH0740974Y2 (en) 1986-09-29 1986-09-29 Optical system for electronic endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986149228U JPH0740974Y2 (en) 1986-09-29 1986-09-29 Optical system for electronic endoscope

Publications (2)

Publication Number Publication Date
JPS6357617U true JPS6357617U (en) 1988-04-18
JPH0740974Y2 JPH0740974Y2 (en) 1995-09-20

Family

ID=31064239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986149228U Expired - Lifetime JPH0740974Y2 (en) 1986-09-29 1986-09-29 Optical system for electronic endoscope

Country Status (1)

Country Link
JP (1) JPH0740974Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062331U (en) * 1992-06-12 1994-01-14 富士写真光機株式会社 Structure of the tip of an electronic endoscope
JP2006058840A (en) * 2004-07-23 2006-03-02 Konica Minolta Opto Inc Imaging optical system, imaging lens device and digital equipment
JP2009011513A (en) * 2007-07-03 2009-01-22 Olympus Corp Endoscope and optical adapter for endoscope
EP2165640A1 (en) * 2008-09-19 2010-03-24 Olympus Medical Systems Corp. Endoscope for oblique viewing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026918A (en) * 1983-07-23 1985-02-09 Fuji Photo Optical Co Ltd Objective optical system for endoscope
JPS6068824A (en) * 1983-09-26 1985-04-19 オリンパス光学工業株式会社 Endoscope using solid image pick-up element
JPS60243626A (en) * 1984-05-18 1985-12-03 Fuji Photo Optical Co Ltd Endoscope

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026918A (en) * 1983-07-23 1985-02-09 Fuji Photo Optical Co Ltd Objective optical system for endoscope
JPS6068824A (en) * 1983-09-26 1985-04-19 オリンパス光学工業株式会社 Endoscope using solid image pick-up element
JPS60243626A (en) * 1984-05-18 1985-12-03 Fuji Photo Optical Co Ltd Endoscope

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062331U (en) * 1992-06-12 1994-01-14 富士写真光機株式会社 Structure of the tip of an electronic endoscope
JP2006058840A (en) * 2004-07-23 2006-03-02 Konica Minolta Opto Inc Imaging optical system, imaging lens device and digital equipment
JP2009011513A (en) * 2007-07-03 2009-01-22 Olympus Corp Endoscope and optical adapter for endoscope
EP2165640A1 (en) * 2008-09-19 2010-03-24 Olympus Medical Systems Corp. Endoscope for oblique viewing
JP2010097208A (en) * 2008-09-19 2010-04-30 Olympus Medical Systems Corp Endoscope for oblique viewing
US8582218B2 (en) 2008-09-19 2013-11-12 Olympus Medical Systems Corp. Endoscope for oblique viewing

Also Published As

Publication number Publication date
JPH0740974Y2 (en) 1995-09-20

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