ES2106502T3 - Procedimiento y dispositivo para la determinacion de la topografia de una superficie reflectante. - Google Patents

Procedimiento y dispositivo para la determinacion de la topografia de una superficie reflectante.

Info

Publication number
ES2106502T3
ES2106502T3 ES94904638T ES94904638T ES2106502T3 ES 2106502 T3 ES2106502 T3 ES 2106502T3 ES 94904638 T ES94904638 T ES 94904638T ES 94904638 T ES94904638 T ES 94904638T ES 2106502 T3 ES2106502 T3 ES 2106502T3
Authority
ES
Spain
Prior art keywords
pct
projection
topography
sec
projection pattern
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
Application number
ES94904638T
Other languages
English (en)
Inventor
Benedikt Jean
Thomas Bende
Michael Matallana-Kielmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technomed Gesellschaft fuer Med und Med Techn Systeme mbH
Original Assignee
Technomed Gesellschaft fuer Med und Med Techn Systeme mbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE4325494A external-priority patent/DE4325494A1/de
Application filed by Technomed Gesellschaft fuer Med und Med Techn Systeme mbH filed Critical Technomed Gesellschaft fuer Med und Med Techn Systeme mbH
Application granted granted Critical
Publication of ES2106502T3 publication Critical patent/ES2106502T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Eye Examination Apparatus (AREA)
  • Pinball Game Machines (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

SE DESCRIBE UN PROCEDIMIENTO PARA LA DETERMINACION DE LA TOPOGRAFIA DE UNA SUPERFICIE REFLECTANTE. UNA MUESTRA DE PROYECCION SE PROYECTA SOBRE LA SUPERFICIE Y LA MUESTRA DE REFLEXION ASI FORMADA ES DETECTADA Y EVALUADA. PARA MEJORAR LA CORRESPONDENCIA DE LAS ESTRUCTURAS DE LAS MUESTRAS DE REFLEXION CON AQUELLAS MUESTRAS DE PROYECCION, LA MUESTRA DE PROYECCION CONTIENE MARCAS DE RECONOCIMIENTO QUE INDIVIDUALIZAN LAS AREAS CONTINUAS BLANCO/NEGRO O CLARO/OSCURO. ES PARTICULARMENTE VENTAJOSO UNA MARCA DE COLOR O UN RAYADO. PARA APLICAR LA MUESTRA DE PROYECCION SOBRE LA CORNEA DEL OJO (3), SE UTILIZA UN CUERPO (17) DE PROYECCION, POR EJEMPLO UN CONO HUECO CON ANILLOS (19) TRANSPARENTES DISPUESTOS EN LA PARED (18) LATERAL Y RODEADOS POR UNA FUENTE (20) DE LUZ CON PERFIL ANULAR. SE UTILIZA UNA CAMARA (26) DE VIDEO A COLOR COMO DETECTOR.
ES94904638T 1993-01-21 1994-01-07 Procedimiento y dispositivo para la determinacion de la topografia de una superficie reflectante. Expired - Lifetime ES2106502T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4301525 1993-01-21
DE4308949 1993-03-19
DE4325494A DE4325494A1 (de) 1993-01-21 1993-07-29 Verfahren und Vorrichtung zur Bestimmung der Topographie einer reflektierenden Oberfläche

Publications (1)

Publication Number Publication Date
ES2106502T3 true ES2106502T3 (es) 1997-11-01

Family

ID=27204674

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94904638T Expired - Lifetime ES2106502T3 (es) 1993-01-21 1994-01-07 Procedimiento y dispositivo para la determinacion de la topografia de una superficie reflectante.

Country Status (9)

Country Link
US (1) US5640962A (es)
EP (1) EP0680272B1 (es)
JP (1) JPH08505551A (es)
CN (1) CN1050746C (es)
AT (1) ATE157229T1 (es)
AU (1) AU5860394A (es)
BR (1) BR9406695A (es)
ES (1) ES2106502T3 (es)
WO (1) WO1994016611A1 (es)

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US5740815A (en) * 1995-06-07 1998-04-21 Alpins; Noel A. Method for surgically achieving minimum astigmatism measured refractively and topographically
US5735283A (en) * 1996-10-09 1998-04-07 Snook; Richard Kieth Surgical keratometer system for measuring surface topography of a cornea during surgery
US6858826B2 (en) 1996-10-25 2005-02-22 Waveworx Inc. Method and apparatus for scanning three-dimensional objects
US6116738A (en) * 1997-01-06 2000-09-12 Vismed, Inc. Corneal topographer with central and peripheral measurement capability
US5740803A (en) * 1997-03-07 1998-04-21 Autonomous Technologies Corporation Locating the center of the entrance pupil of an eye after pupil dilation
US6152565A (en) * 1997-12-31 2000-11-28 Premier Laser Systems, Inc. Handheld corneal topography system
US6252623B1 (en) 1998-05-15 2001-06-26 3Dmetrics, Incorporated Three dimensional imaging system
AU1506200A (en) * 1998-11-13 2000-06-05 K Th. Bende A method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye
US7246905B2 (en) * 1998-11-13 2007-07-24 Jean Benedikt Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye
DE19852331A1 (de) * 1998-11-13 2000-05-18 Benedikt Jean Verfahren und Vorrichtung zur simultanen Bestimmung von Oberflächentopometrie und Biometrie des Auges mit Hilfe der modifizierten Placidoring-Videotopographie und der optischen Kohärenz-Tomographie
WO2000042901A1 (de) * 1999-01-22 2000-07-27 Haag-Streit Ag Ophthalmologisches gerät mit einem beleuchtungs- und/oder strahlenbehandlungsstrahl, dessen flächige intensitätsverteilung einstellbar ist, sowie anordnung mit diesem gerät zur augenbehandlung
US6129722A (en) 1999-03-10 2000-10-10 Ruiz; Luis Antonio Interactive corrective eye surgery system with topography and laser system interface
CN1159566C (zh) * 1999-05-14 2004-07-28 北京三维世界科技有限公司 三维成像系统
US6610048B1 (en) 1999-10-05 2003-08-26 Jack T. Holladay Prolate shaped corneal reshaping
AU7993700A (en) 1999-10-05 2001-05-10 Lasersight Technologies, Inc. Ellipsoidal corneal modeling for estimation and reshaping
JP4792190B2 (ja) 2000-04-11 2011-10-12 ジーン，ベネディクト 選択的な角膜収差測定
JP2002191058A (ja) * 2000-12-20 2002-07-05 Olympus Optical Co Ltd ３次元画像取得装置および３次元画像取得方法
US7646896B2 (en) * 2005-08-02 2010-01-12 A4Vision Apparatus and method for performing enrollment of user biometric information
CA2615335C (en) * 2004-08-12 2014-10-28 A4 Vision S.A. Device for biometrically controlling a face surface
AU2005285554B8 (en) * 2004-08-12 2011-11-10 A4 Vision S.A. Device for contactlessly controlling the surface profile of objects
KR20080064155A (ko) * 2005-10-14 2008-07-08 어플라이드 리써치 어쏘시에이츠 뉴질랜드 리미티드 표면 특징을 모니터링하는 방법 및 장치
BRPI0505742B8 (pt) * 2005-12-21 2021-06-22 Fund De Amparo A Pesquisa Do Estado De Sao Paulo cúpula luminosa de projeção para topografia de superfícies refletoras esféricas e não esféricas
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
US7988290B2 (en) * 2007-06-27 2011-08-02 AMO Wavefront Sciences LLC. Systems and methods for measuring the shape and location of an object
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
DE102008060621B3 (de) * 2008-12-05 2010-08-12 Carl Zeiss Ag Optische Anordnung zum berührungslosen Messen oder Prüfen einer Körperoberfläche
NL2005710C2 (en) * 2010-11-18 2012-05-22 Optics B V I Color coded topographer.
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
CN102507594A (zh) * 2011-11-15 2012-06-20 奇瑞汽车股份有限公司 一种汽车车身覆盖件表面质量检测装置及其检测方法
CN102657512B (zh) * 2012-05-11 2014-12-31 浙江工业大学 一种应用于角膜地形图仪中的图像采集设备
CN102715886B (zh) * 2012-06-21 2014-08-06 宁波明星科技发展有限公司 一种电脑验光仪的角膜曲率计算方法
CN102908118A (zh) * 2012-11-09 2013-02-06 苏州四海通仪器有限公司 一种角膜地形图仪
USD734470S1 (en) * 2013-12-13 2015-07-14 Henry Ford Health System Vision assessment chart
USD728797S1 (en) * 2013-12-13 2015-05-05 Henry Ford Health System Vision assessment apparatus
USD745169S1 (en) * 2014-01-28 2015-12-08 The Eye Tribe Aps Eye tracking apparatus
USD844145S1 (en) 2014-12-22 2019-03-26 Henry Ford Health System Vision assessment chart
US11957412B2 (en) 2018-11-28 2024-04-16 Amo Development, Llc Imaging device for ophthalmic laser system using off-axis miniature camera
USD948724S1 (en) 2019-04-16 2022-04-12 Henry Ford Health System Vision assessment chart
CN113679337A (zh) * 2021-07-29 2021-11-23 天津大学 一种基于红外显示设备的角膜面形测量装置及方法

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US3598478A (en) * 1968-11-26 1971-08-10 Plastic Contact Lens Co Apparatus for determining cornea contour
DE2641004C2 (de) * 1976-09-11 1981-12-17 Battelle-Institut E.V., 6000 Frankfurt Vorrichtung zur Messung der Hornhautkrümmung
EP0076866B1 (de) * 1981-10-09 1985-05-02 Ibm Deutschland Gmbh Interpolierendes Lichtschnitt-Verfahren
US4597648A (en) * 1983-04-01 1986-07-01 Keratometer Research And Development Keratometer
US4772115A (en) * 1986-09-02 1988-09-20 Computed Anatomy Incorporated Illuminated ring keratometer device
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US4863260A (en) * 1987-11-04 1989-09-05 Computed Anatomy Inc. System for topographical modeling of anatomical surfaces
JPH02150202A (ja) * 1988-11-29 1990-06-08 Konan Camera Kenkyusho:Kk 視標使用による眼球運動撮影装置
US5054907A (en) * 1989-12-22 1991-10-08 Phoenix Laser Systems, Inc. Ophthalmic diagnostic apparatus and method
US5009498A (en) * 1990-03-20 1991-04-23 Computed Anatomy Inc. Interchangeable keratoscope device
US5214456A (en) * 1991-10-09 1993-05-25 Computed Anatomy Incorporated Mapping of corneal topography with display of pupil perimeter
US5513642A (en) * 1994-10-12 1996-05-07 Rensselaer Polytechnic Institute Reflectance sensor system

Also Published As

Publication number Publication date
JPH08505551A (ja) 1996-06-18
US5640962A (en) 1997-06-24
CN1050746C (zh) 2000-03-29
ATE157229T1 (de) 1997-09-15
BR9406695A (pt) 1996-02-27
WO1994016611A1 (de) 1994-08-04
EP0680272B1 (de) 1997-08-27
AU5860394A (en) 1994-08-15
EP0680272A1 (de) 1995-11-08
CN1096580A (zh) 1994-12-21

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