JP5266558B2 - 光束の収束および拡散による正立広角眼底観察レンズ - Google Patents
光束の収束および拡散による正立広角眼底観察レンズ Download PDFInfo
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- JP5266558B2 JP5266558B2 JP2009277983A JP2009277983A JP5266558B2 JP 5266558 B2 JP5266558 B2 JP 5266558B2 JP 2009277983 A JP2009277983 A JP 2009277983A JP 2009277983 A JP2009277983 A JP 2009277983A JP 5266558 B2 JP5266558 B2 JP 5266558B2
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- 230000004907 flux Effects 0.000 title description 2
- 238000009792 diffusion process Methods 0.000 title 1
- 210000005252 bulbus oculi Anatomy 0.000 claims description 5
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000004087 cornea Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Description
2 レンズ[2]
3 レンズ[3]
4 外筒
5 眼球
6 観察光の光束
Claims (1)
- 観察光を収束させる作用を有する第一のレンズ、および、該レンズによって収束した観察光を再び拡散させる作用を有する第二のレンズを備えた、眼底の正立像を得るための広角観察レンズであって、ここで、観察者側から観測対象の眼球側に向かって、該第一のレンズ、該第二のレンズの順に配置され、さらにここで、該第一のレンズを通過した収束光が焦点に収束する前に該第二のレンズによって拡散することを特徴とする、広角観察レンズ。
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JP2009277983A JP5266558B2 (ja) | 2009-11-16 | 2009-11-16 | 光束の収束および拡散による正立広角眼底観察レンズ |
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JP2009277983A JP5266558B2 (ja) | 2009-11-16 | 2009-11-16 | 光束の収束および拡散による正立広角眼底観察レンズ |
Publications (2)
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JP2011104316A JP2011104316A (ja) | 2011-06-02 |
JP5266558B2 true JP5266558B2 (ja) | 2013-08-21 |
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JP2009277983A Active JP5266558B2 (ja) | 2009-11-16 | 2009-11-16 | 光束の収束および拡散による正立広角眼底観察レンズ |
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JP (1) | JP5266558B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103815869A (zh) * | 2014-03-21 | 2014-05-28 | 苏州微清医疗器械有限公司 | 一种手持式眼底照相机 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4978390A (ja) * | 1972-11-22 | 1974-07-29 | ||
JPS6030202U (ja) * | 1983-08-06 | 1985-03-01 | 株式会社 イナミ | 双眼検眼鏡 |
JPS61268231A (ja) * | 1985-05-23 | 1986-11-27 | 柏木 豊彦 | 眼底観察用コンタクトレンズ |
JPH10179523A (ja) * | 1996-12-26 | 1998-07-07 | Canon Inc | デジタルカメラ |
JPH119554A (ja) * | 1997-06-27 | 1999-01-19 | Nikon Corp | 眼底観察用レンズ |
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