JP5924220B2 - 非接触式眼圧計 - Google Patents
非接触式眼圧計 Download PDFInfo
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- JP5924220B2 JP5924220B2 JP2012217446A JP2012217446A JP5924220B2 JP 5924220 B2 JP5924220 B2 JP 5924220B2 JP 2012217446 A JP2012217446 A JP 2012217446A JP 2012217446 A JP2012217446 A JP 2012217446A JP 5924220 B2 JP5924220 B2 JP 5924220B2
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- light
- optical system
- cornea
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- 230000003287 optical effect Effects 0.000 claims description 162
- 210000004087 cornea Anatomy 0.000 claims description 94
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- 238000005507 spraying Methods 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 60
- 238000005259 measurement Methods 0.000 description 38
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- 238000007906 compression Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000003038 endothelium Anatomy 0.000 description 2
- 210000000981 epithelium Anatomy 0.000 description 2
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Images
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- Eye Examination Apparatus (AREA)
Description
2 ピストン
3 ソレノイド
6 ノズル
7a、7b ガラス板
20 制御回路
36 モニタ
50 赤外光源
52 ビームスプリッタ
53 レンズ
57 光検出器
60 受光素子
71 照明光源
77 受光素子
100 非接触式眼圧計
101 基台
103 移動台
104 測定部
105 ジョイスティック
106 XYZ駆動部
Claims (3)
- ノズルを介して被検眼の角膜に流体を吹き付ける流体吹付手段と、第1照明用光源を有し前記被検眼の角膜に向けて斜め方向から第1照明光を照射する第1投光光学系と、第1受光素子を有し前記被検眼の角膜表面を反射した前記第1照明光を受光し前記流体吹付手段によって変形した前記角膜の変形形状を検出するための第1受光光学系と、を有し、前記被検眼の眼圧を非接触にて測定するための眼圧測定手段と、
第2照明用光源を有し前記被検眼の角膜に向けて斜め方向から第2照明光を照射する第2投光光学系と、第2受光素子を有し前記被検眼の角膜表面からの反射光と角膜裏面からの反射光を受光するための第2受光光学系と、を有し、前記被検眼の角膜厚を非接触にて測定するための角膜厚測定手段と、を備えた、非接触式眼圧計において、
前記第1投光光学系の光軸と前記第2受光光学系の光軸とが一致し、前記第1受光光学系の光軸と前記第2投光光学系の光軸とが一致することを特徴とする非接触式眼圧計。 - 前記第1照明用光源と前記第2照明用光源は、眼圧を測定する場合、前記被検眼に前記第1照明光及び前記第2照明光を同時に照射することを特徴とする請求項1の非接触式眼圧計。
- 前記眼圧測定手段によって前記被検眼の眼圧を測定するとき、前記第2受光素子は、前記流体吹付手段によって変形した前記被検眼の角膜表面及び角膜裏面を反射した前記第2照明用光源からの前記照明光を受光することを特徴とする請求項1または2の非接触式眼圧計。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012217446A JP5924220B2 (ja) | 2012-09-28 | 2012-09-28 | 非接触式眼圧計 |
US14/037,861 US9560966B2 (en) | 2012-09-28 | 2013-09-26 | Non-contact type tonometer |
KR1020130115049A KR102039195B1 (ko) | 2012-09-28 | 2013-09-27 | 비접촉식 안압계 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012217446A JP5924220B2 (ja) | 2012-09-28 | 2012-09-28 | 非接触式眼圧計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014068830A JP2014068830A (ja) | 2014-04-21 |
JP5924220B2 true JP5924220B2 (ja) | 2016-05-25 |
Family
ID=50744637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012217446A Active JP5924220B2 (ja) | 2012-09-28 | 2012-09-28 | 非接触式眼圧計 |
Country Status (1)
Country | Link |
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JP (1) | JP5924220B2 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474066A (en) * | 1994-01-31 | 1995-12-12 | Leica Inc. | Non-contact tonometer |
JP3429668B2 (ja) * | 1998-03-27 | 2003-07-22 | 株式会社トプコン | 非接触式眼圧計 |
JP4616453B2 (ja) * | 2000-10-03 | 2011-01-19 | 株式会社トプコン | 眼科装置 |
JP2006130051A (ja) * | 2004-11-05 | 2006-05-25 | Topcon Corp | 非接触式眼圧計 |
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2012
- 2012-09-28 JP JP2012217446A patent/JP5924220B2/ja active Active
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