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
Links
- 230000003287 optical effect Effects 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
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)
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.
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)
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)
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 |
-
1986
- 1986-09-29 JP JP1986149228U patent/JPH0740974Y2/en not_active Expired - Lifetime
Patent Citations (3)
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)
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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