JP2009268651A5 - - Google Patents
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- JP2009268651A5 JP2009268651A5 JP2008120793A JP2008120793A JP2009268651A5 JP 2009268651 A5 JP2009268651 A5 JP 2009268651A5 JP 2008120793 A JP2008120793 A JP 2008120793A JP 2008120793 A JP2008120793 A JP 2008120793A JP 2009268651 A5 JP2009268651 A5 JP 2009268651A5
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- probe
- contact ultrasonic
- eye
- observation optical
- ultrasonic tonometer
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Claims (10)
被検眼前眼部を観察するための観察光路中に前記探触子が配置され、前記探触子の周辺領域を介して前眼部像を結像させる前眼部観察光学系と、を備え、
該探触子を用いて被検眼の眼圧を測定することを特徴とする非接触式超音波眼圧計。 A probe having a vibrator for causing ultrasonic waves to enter the eye to be examined, and a vibration detection sensor for detecting a reflected wave from the eye to be examined;
An anterior ocular segment observation optical system in which the probe is arranged in an observation optical path for observing the anterior segment of the eye to be examined and forms an anterior ocular segment image through a peripheral region of the probe; ,
A non-contact ultrasonic tonometer that measures the intraocular pressure of an eye to be examined using the probe .
前記探触子は、前眼部観察光学系の観察光軸上に配置されていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 1,
The non-contact ultrasonic tonometer, wherein the probe is arranged on an observation optical axis of an anterior ocular segment observation optical system.
前記探触子は、該探触子の中心軸と前眼部観察光学系の観察光軸とが同軸になるように配置されていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 2,
The non-contact ultrasonic tonometer, wherein the probe is arranged so that a central axis of the probe and an observation optical axis of an anterior ocular segment observation optical system are coaxial.
前記前眼部観察光学系には、前眼部観察用の撮像素子と、被検眼前眼部像を前記撮像素子上に導光するための対物レンズと、が設けられていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 2,
The anterior ocular segment observation optical system is provided with an imaging element for observing an anterior ocular segment and an objective lens for guiding an anterior ocular segment image to be examined onto the imaging element. Non-contact ultrasonic tonometer.
前記前眼部観察光学系の対物レンズは、前記探触子より後方もしくは略同一位置に配置されていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 4,
The non-contact ultrasonic tonometer, wherein the objective lens of the anterior ocular segment observation optical system is arranged behind or substantially at the same position as the probe.
前記前眼部観察光学系の対物レンズには、前記探触子が挿入される挿入孔が形成されていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 4,
A non-contact ultrasonic tonometer, wherein an insertion hole into which the probe is inserted is formed in an objective lens of the anterior ocular segment observation optical system.
前記前眼部観察光学系の対物レンズは、前記探触子より前方に配置されており、前記探触子による超音波伝搬経路に対応する部分に開口部が形成されていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 4,
The objective lens of the anterior ocular segment observation optical system is disposed in front of the probe, and an opening is formed in a portion corresponding to an ultrasonic wave propagation path by the probe. Non-contact ultrasonic tonometer.
固視標投影用の固視光源を有し被検眼を固視させるための固視標を被検眼に向けて投影する固視標投影光学系を備え、
前記探触子の中心部には、前記固視光源から発せられた固視標投影用の光束を通過させる開口部、もしくは前記固視光源が設けられていることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 2 comprises:
A fixation target projection optical system that has a fixation light source for fixation target projection and projects a fixation target for fixing the eye to be examined toward the eye;
A non-contact super-light source characterized in that an opening for passing a fixation target projection light beam emitted from the fixation light source or the fixation light source is provided at the center of the probe. Sonic tonometer.
アライメント指標投影用のアライメント光源を有し被検眼前眼部に向けてアライメント指標を投影する指標投影光学系を、備え、
前記観察光学系は、前記アライメント光源による角膜反射像と被検眼前眼部像を前記探触子の周辺領域を介して前記二次元撮像素子上に結像させることを特徴とする非接触式超音波眼圧計。 The non-contact ultrasonic tonometer according to claim 2 comprises:
An index projection optical system having an alignment light source for projecting an alignment index and projecting the alignment index toward the anterior eye portion of the eye to be examined;
The observation optical system forms an image of the cornea reflected by the alignment light source and the anterior eye image of the eye to be examined on the two-dimensional image sensor through a peripheral region of the probe. Sonic tonometer.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008120793A JP5410692B2 (en) | 2008-05-03 | 2008-05-03 | Non-contact ultrasonic tonometer |
| US12/385,912 US8092018B2 (en) | 2008-05-03 | 2009-04-23 | Non-contact ultrasonic tonometer |
| EP09159177A EP2113191B1 (en) | 2008-05-03 | 2009-04-30 | Non-contact ultrasonic tonometer |
| CN200910140516.5A CN101569545B (en) | 2008-05-03 | 2009-04-30 | Non-contact ultrasonic tonometer |
| AT09159177T ATE492204T1 (en) | 2008-05-03 | 2009-04-30 | CONTACT-FREE ULTRASONIC TONOMETER |
| DE602009000454T DE602009000454D1 (en) | 2008-05-03 | 2009-04-30 | Contactless ultrasonic tonometer |
| US13/745,091 USRE45013E1 (en) | 2008-05-03 | 2013-01-18 | Non-contact ultrasonic tonometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008120793A JP5410692B2 (en) | 2008-05-03 | 2008-05-03 | Non-contact ultrasonic tonometer |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012253637A Division JP5601622B2 (en) | 2012-11-19 | 2012-11-19 | Non-contact ultrasonic tonometer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009268651A JP2009268651A (en) | 2009-11-19 |
| JP2009268651A5 true JP2009268651A5 (en) | 2011-06-16 |
| JP5410692B2 JP5410692B2 (en) | 2014-02-05 |
Family
ID=41229129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008120793A Expired - Fee Related JP5410692B2 (en) | 2008-05-03 | 2008-05-03 | Non-contact ultrasonic tonometer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5410692B2 (en) |
| CN (1) | CN101569545B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5562703B2 (en) * | 2010-03-31 | 2014-07-30 | 株式会社ニデック | Non-contact ultrasonic tonometer |
| US10470824B2 (en) | 2014-01-22 | 2019-11-12 | BK Medical Holding Company | Imaging apparatus and interventional instrument event mapper |
| CN104367347B (en) * | 2014-05-16 | 2016-12-07 | 深圳大学 | A kind of measurement intraocular pressure and the viscoelastic system and method for cornea |
| CN104027067A (en) * | 2014-05-29 | 2014-09-10 | 温州眼视光发展有限公司 | Human eye front tissue coaxial imaging, fixation and lighting system |
| JP6887953B2 (en) | 2015-03-16 | 2021-06-16 | マジック リープ，インコーポレイティド | Methods and systems for diagnosing and treating health-impairing illnesses |
| AU2017246901B2 (en) | 2016-04-08 | 2022-06-02 | Magic Leap, Inc. | Augmented reality systems and methods with variable focus lens elements |
| JP6723843B2 (en) * | 2016-06-22 | 2020-07-15 | 株式会社トプコン | Ophthalmic equipment |
| WO2018156784A1 (en) | 2017-02-23 | 2018-08-30 | Magic Leap, Inc. | Variable-focus virtual image devices based on polarization conversion |
| CN110996761B (en) * | 2017-06-13 | 2022-05-13 | 伊利诺伊大学董事会 | Non-mydriatic, non-contact system and method for performing wide-field fundus photographic imaging of an eye |
| EP3856040B1 (en) | 2018-09-28 | 2024-01-03 | Nidek Co., Ltd. | Ultrasonic tonometer and ultrasonic actuator |
| WO2020065388A1 (en) | 2018-09-28 | 2020-04-02 | Nidek Co., Ltd. | Ultrasonic tonometer and ultrasonic actuator |
| JP7375321B2 (en) * | 2019-03-28 | 2023-11-08 | 株式会社ニデック | intraocular pressure measuring device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6264332A (en) * | 1985-09-13 | 1987-03-23 | キヤノン株式会社 | Ophthalmic measuring apparatus |
| US4928697A (en) * | 1988-09-28 | 1990-05-29 | The Ohio State University | Non-contact high frequency tonometer |
| JPH04114625A (en) * | 1990-09-04 | 1992-04-15 | Canon Inc | Ophthalmological apparatus |
| JPH04114626A (en) * | 1990-09-04 | 1992-04-15 | Canon Inc | Ophthalmologic apparatus |
| JPH05253190A (en) * | 1991-10-10 | 1993-10-05 | Massie Res Lab Inc | Non-contact type tonometer |
| JPH11113846A (en) * | 1997-10-09 | 1999-04-27 | Topcon Corp | Ophthalmologic device |
| WO2003057023A1 (en) * | 2002-01-10 | 2003-07-17 | Carl Zeiss Meditec Ag | Arrangement and method for illuminating the lens of the human eye |
| JP4126249B2 (en) * | 2003-05-30 | 2008-07-30 | 株式会社ニデック | Ophthalmic equipment |
| US20050020896A1 (en) * | 2003-07-24 | 2005-01-27 | Fuller Terry A. | Apparatus and method of intraocular pressure determination |
| WO2008072527A1 (en) * | 2006-12-08 | 2008-06-19 | Nihon University | Intraocular pressure measuring device |
-
2008
- 2008-05-03 JP JP2008120793A patent/JP5410692B2/en not_active Expired - Fee Related
-
2009
- 2009-04-30 CN CN200910140516.5A patent/CN101569545B/en not_active Expired - Fee Related
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