JPH032531B2 - - Google Patents
Info
- Publication number
- JPH032531B2 JPH032531B2 JP56173529A JP17352981A JPH032531B2 JP H032531 B2 JPH032531 B2 JP H032531B2 JP 56173529 A JP56173529 A JP 56173529A JP 17352981 A JP17352981 A JP 17352981A JP H032531 B2 JPH032531 B2 JP H032531B2
- Authority
- JP
- Japan
- Prior art keywords
- measuring device
- curvature
- light
- detection
- curvature measuring
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 72
- 238000001514 detection method Methods 0.000 claims description 47
- 238000005286 illumination Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 57
- 210000004087 cornea Anatomy 0.000 description 40
- 239000011295 pitch Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 11
- 210000001508 eye Anatomy 0.000 description 10
- 238000003384 imaging method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000005252 bulbus oculi Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- General Physics & Mathematics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Eye Examination Apparatus (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56173529A JPS5875531A (ja) | 1981-10-28 | 1981-10-28 | 曲率測定装置 |
US06/436,853 US4588270A (en) | 1981-10-28 | 1982-10-26 | Curvature measuring apparatus |
DE198282109941T DE78062T1 (de) | 1981-10-28 | 1982-10-27 | Geraet zur kruemmungsmessung. |
DE8282109941T DE3272922D1 (en) | 1981-10-28 | 1982-10-27 | Curvature measuring apparatus |
EP82109941A EP0078062B1 (en) | 1981-10-28 | 1982-10-27 | Curvature measuring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56173529A JPS5875531A (ja) | 1981-10-28 | 1981-10-28 | 曲率測定装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2091829A Division JPH0315435A (ja) | 1990-04-06 | 1990-04-06 | 曲率測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5875531A JPS5875531A (ja) | 1983-05-07 |
JPH032531B2 true JPH032531B2 (en, 2012) | 1991-01-16 |
Family
ID=15962213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56173529A Granted JPS5875531A (ja) | 1981-10-28 | 1981-10-28 | 曲率測定装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4588270A (en, 2012) |
EP (1) | EP0078062B1 (en, 2012) |
JP (1) | JPS5875531A (en, 2012) |
DE (2) | DE3272922D1 (en, 2012) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60152909A (ja) * | 1984-01-21 | 1985-08-12 | Sanwa Seiki Kk | 非接触型3次元測定器 |
JPS60218016A (ja) * | 1984-04-13 | 1985-10-31 | Kajima Corp | 掘削面形状の計測装置 |
JPS61280543A (ja) * | 1985-06-05 | 1986-12-11 | San Haitetsuku Kk | 光学系の屈折力の測定装置 |
US4807989A (en) * | 1986-01-14 | 1989-02-28 | Olympus Optical Co., Ltd. | Surgical microscope system |
US4993826A (en) * | 1987-11-25 | 1991-02-19 | Taunton Technologies, Inc. | Topography measuring apparatus |
US5106183A (en) * | 1987-11-25 | 1992-04-21 | Taunton Technologies, Inc. | Topography measuring apparatus |
US4998819A (en) * | 1987-11-25 | 1991-03-12 | Taunton Technologies, Inc. | Topography measuring apparatus |
US4902123A (en) * | 1987-11-25 | 1990-02-20 | Taunton Technologies, Inc. | Topography measuring apparatus |
JPH0797024B2 (ja) * | 1987-12-22 | 1995-10-18 | 旭硝子株式会社 | 反射像歪の測定方法 |
US5159361A (en) * | 1989-03-09 | 1992-10-27 | Par Technology Corporation | Method and apparatus for obtaining the topography of an object |
US4995716A (en) * | 1989-03-09 | 1991-02-26 | Par Technology Corporation | Method and apparatus for obtaining the topography of an object |
US5280336A (en) * | 1991-03-29 | 1994-01-18 | Optikos Corporation | Automated radius measurement apparatus |
US5416574A (en) * | 1991-03-29 | 1995-05-16 | Optikos Corporation | Automated optical measurement apparatus |
US5585873A (en) * | 1991-10-11 | 1996-12-17 | Alcon Laboratories, Inc. | Automated hand-held keratometer |
GB9205655D0 (en) * | 1992-03-14 | 1992-04-29 | Roke Manor Research | Improvements in or relating to surface curvature measurement |
DE69314829T2 (de) * | 1992-03-14 | 1998-03-05 | Roke Manor Research | Krümmungsmessung einer Oberfläche |
JP3033926B2 (ja) * | 1992-10-07 | 2000-04-17 | 日立電子株式会社 | テレビジョンカメラ装置 |
EP0882970B1 (en) | 1993-07-29 | 2001-09-19 | Wesley Jessen Corporation | Inspection system for optical components |
JP3345016B2 (ja) * | 1994-05-28 | 2002-11-18 | ロウク マナー リサーチ リミテッド | 表面の曲率測定装置における、または該装置に関する改良 |
DE4440573A1 (de) * | 1994-11-14 | 1996-05-15 | Matallana Kielmann Michael | Verfahren zur Bestimmung der Kurvator/absoluten Koordinaten von reflektierenden Oberfläche unter Verwendung eines Videoplaciodotopometers |
US6188933B1 (en) * | 1997-05-12 | 2001-02-13 | Light & Sound Design Ltd. | Electronically controlled stage lighting system |
US6545701B2 (en) * | 1997-08-13 | 2003-04-08 | Georgia Tech Research Corporation | Panoramic digital camera system and method |
DE69942963D1 (de) * | 1998-02-13 | 2011-01-05 | Topcon Corp | Linsenmessgerät |
DE29901791U1 (de) * | 1999-02-02 | 2000-07-06 | Novartis Ag, Basel | Linsenmesseinrichtung |
US6765661B2 (en) | 2001-03-09 | 2004-07-20 | Novartis Ag | Lens inspection |
JP2003106935A (ja) * | 2001-09-28 | 2003-04-09 | Tomey Corporation | コンタクトレンズの形状測定 |
WO2003068051A2 (en) * | 2002-02-12 | 2003-08-21 | Visx, Inc. | Flexible scanning beam imaging system |
BR0305483A (pt) * | 2003-07-07 | 2005-05-17 | Fundacao De Amparo A Pesquisa | Módulo ceratométrico para acoplamento em lâmpada de fenda e ou microscópicos oculares |
US7436524B2 (en) * | 2004-11-26 | 2008-10-14 | Olympus Corporation | Apparatus and method for three-dimensional measurement and program for allowing computer to execute method for three-dimensional measurement |
DE102006017389A1 (de) * | 2006-04-11 | 2007-10-18 | Oculus Optikgeräte GmbH | Refraktionsmessvorrichtung zur Bestimmung der Refraktionseigenschaften eines Auges |
AU2008251316B2 (en) | 2007-05-11 | 2014-05-29 | Amo Development, Llc | Combined wavefront and topography systems and methods |
US7976163B2 (en) | 2007-06-27 | 2011-07-12 | Amo Wavefront Sciences Llc | System and method for measuring corneal topography |
US7988293B2 (en) | 2008-11-14 | 2011-08-02 | AMO Wavefront Sciences LLC. | Method of qualifying light spots for optical measurements and measurement instrument employing method of qualifying light spots |
TWI391644B (zh) * | 2008-12-31 | 2013-04-01 | Uma Technology Inc | 鏡頭檢測裝置及方法 |
US8622546B2 (en) | 2011-06-08 | 2014-01-07 | Amo Wavefront Sciences, Llc | Method of locating valid light spots for optical measurement and optical measurement instrument employing method of locating valid light spots |
US20180023943A1 (en) * | 2016-07-21 | 2018-01-25 | Sony Corporation | Optical apparatuses and method of collecting three dimensional information of an object |
TWI624643B (zh) * | 2016-08-19 | 2018-05-21 | 財團法人工業技術研究院 | 一種薄膜曲率量測裝置及其方法 |
CN113155023B (zh) * | 2021-04-02 | 2023-02-07 | 甘肃旭盛显示科技有限公司 | 液晶基板玻璃翘曲度测量方法及系统 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2174308A (en) * | 1937-01-11 | 1939-09-26 | Zeiss Carl Fa | Ophthalmometer |
US3108523A (en) * | 1959-09-10 | 1963-10-29 | Nuchman Benjamin | Apparatus for fitting contact lenses |
US3183519A (en) * | 1960-07-01 | 1965-05-11 | Te Company | System for optically determining curvature of an object |
US3544220A (en) * | 1965-11-05 | 1970-12-01 | Plastic Contact Lens Co | Optical instruments |
DE1572779C3 (de) * | 1967-07-11 | 1974-04-04 | Optische Werke G. Rodenstock, 8000 Muenchen | Kompensierende Einrichtung zum Messen der Hornhautkrümmung durch Photokeratometrie oder Cornealreflektographie |
US3781096A (en) * | 1972-11-01 | 1973-12-25 | Jessen Inc Wesley | Method and apparatus for designing contact lenses |
DE2410947A1 (de) * | 1974-03-07 | 1975-09-11 | Kohaerente Optik Dr Ing Hans R | Verfahren zur formtreuepruefung |
US3880525A (en) * | 1974-05-08 | 1975-04-29 | American Optical Corp | Method and apparatus for determining the refractive characteristics of a lens |
US4046463A (en) * | 1974-07-17 | 1977-09-06 | Surgical Microsystems, Inc. | Indicating an asphericity of the cornea of an eye |
FR2337329A1 (fr) * | 1975-12-29 | 1977-07-29 | Cem Comp Electro Mec | Procede et dispositif optiques pour la comparaison des coordonnees spatiales des points des enveloppes de plusieurs objets tridimensionnels |
DE2641004C2 (de) * | 1976-09-11 | 1981-12-17 | Battelle-Institut E.V., 6000 Frankfurt | Vorrichtung zur Messung der Hornhautkrümmung |
US4293198A (en) * | 1977-09-21 | 1981-10-06 | Canon Kabushiki Kaisha | Eye refractometer |
JPS54160271A (en) * | 1978-06-09 | 1979-12-18 | Nippon Chemical Ind | Device for measuring radius of curvature |
JPS5666235A (en) * | 1979-11-02 | 1981-06-04 | Canon Kk | Cornea meter |
JPS5731837A (en) * | 1980-06-27 | 1982-02-20 | Humphrey Instruments Inc | Method and apparatus for examinating cornea shape |
US4439025A (en) * | 1981-08-13 | 1984-03-27 | Smirmaul Heinz J | Variable circular dual image corneal radius measurement instrument |
-
1981
- 1981-10-28 JP JP56173529A patent/JPS5875531A/ja active Granted
-
1982
- 1982-10-26 US US06/436,853 patent/US4588270A/en not_active Expired - Lifetime
- 1982-10-27 DE DE8282109941T patent/DE3272922D1/de not_active Expired
- 1982-10-27 EP EP82109941A patent/EP0078062B1/en not_active Expired
- 1982-10-27 DE DE198282109941T patent/DE78062T1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5875531A (ja) | 1983-05-07 |
DE78062T1 (de) | 1984-07-19 |
EP0078062B1 (en) | 1986-08-27 |
DE3272922D1 (en) | 1986-10-02 |
EP0078062A1 (en) | 1983-05-04 |
US4588270A (en) | 1986-05-13 |
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