ES2108203T3 - Sistema para determinar la topografia de una superficie curvada. - Google Patents

Sistema para determinar la topografia de una superficie curvada.

Info

Publication number
ES2108203T3
ES2108203T3 ES93200102T ES93200102T ES2108203T3 ES 2108203 T3 ES2108203 T3 ES 2108203T3 ES 93200102 T ES93200102 T ES 93200102T ES 93200102 T ES93200102 T ES 93200102T ES 2108203 T3 ES2108203 T3 ES 2108203T3
Authority
ES
Spain
Prior art keywords
muare
pattern
real time
lines
themselves
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
ES93200102T
Other languages
English (en)
Inventor
Franciscus Hermanus Ma Jongsma
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.)
EUCLID MEDICAL INSTR Inc
Original Assignee
EUCLID MEDICAL INSTR Inc
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
Application filed by EUCLID MEDICAL INSTR Inc filed Critical EUCLID MEDICAL INSTR Inc
Application granted granted Critical
Publication of ES2108203T3 publication Critical patent/ES2108203T3/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
    • G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
    • G01B11/2531—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object using several gratings, projected with variable angle of incidence on the object, and one detection device
    • 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)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Eye Examination Apparatus (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

UN SISTEMA PARA DETERMINAR LA TOPOGRAFIA DE UNA SUPERFICIE CURVA, COMPRENDE UN DISPOSITIVO PARA PROYECTAR PATRONES DE LINEAS SOBRE LA SUPERFICIE QUE SE VA A EXAMINAR, CUYO DISPOSITIVO INCLUYE DOS PROYECTORES EN UN ANGULO RELATIVO A CADA UNO, PROVISTOS AMBOS DE UNA CUADRICULA DE LINEAS RECTAS PARALELAS, LAS QUE SE SITUAN EN ANGULO RECTO AL PLANO A TRAVES DE LOS EJES DE PROYECCION Y UN DIAFRAGMA RECTANGULAR, DEL CUAL LOS LADOS ALARGADOS SON PARALELOS A LAS LINEAS DE LA CUADRICULA Y UN DISPOSITIVO DE DETECCION PARA REGISTRAR LA IMAGEN FORMADA SOBRE LA SUPERFICIE. EL SISTEMA SE IMPLEMENTA DE TAL FORMA QUE SE PRODUCE UN PATRON MUARE ADITIVO Y SE PROVEE UN MONITOR PILOTO JUNTO CON UN FILTRO ELECTRONICO PARA LA VISUALIZACION DE ESTE PATRON MUARE EN TIEMPO REAL. EL DISPOSITIVO DE DETECCION FUNCIONA REGISTRANDO LA IMAGEN SIN INTERFERENCIA DEL PATRON MUARE, ADECUADA PARA REALIZAR EL ANALISIS FOURIER DISCRETO. EL REGISTRO DE LA ALTURA DE LA LINEA DEL MAPA FORMADA PARA UN ENFOQUE ADECUADO O PARA OBTENER UN PRODUCTO FINAL SE FILTRA ELECTRONICAMENTE, CON EL OBJETO DE SER CAPAZ DE VER LOS PUNTOS SOBRESALIENTES DEL MUARE DE CONTRASTRE CON LOS CONTORNOS DE LAS ALTURAS EN EL MONITOR EN TIEMPO REAL. LA FUENTE DE LUZ PARA AMBOS MONITORES ES CONTINUA DE FORMA HENDIDA COMBINANDOSE CON UNA LAMPARA DE DESTELLO DE LA MISMA FORMA, LA CUAL AL FINAL DEL PRIMER PERIODO DE CUADRICULADO Y AL COMIENZO DEL SEGUNDO PERIODO DE CUADRICULADO RESPECTIVAMENTE ILUMINA TOTALMENTE LA CUADRICULA DE LA TV EN SOLO UNOS POCOS MS. Y EN CUYO CASO LA MITAD DE LOS CUDRICULADOS PUEDEN COMPLEMENTARSE ENTRE SI POSTERIORMENTE A TRAVES DE UN ANALISIS DIGITAL EXPLICITO.
ES93200102T 1992-01-15 1993-01-15 Sistema para determinar la topografia de una superficie curvada. Expired - Lifetime ES2108203T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9200071A NL9200071A (nl) 1992-01-15 1992-01-15 Inrichting voor het bepalen van de topografie van een gekromd oppervlak.

Publications (1)

Publication Number Publication Date
ES2108203T3 true ES2108203T3 (es) 1997-12-16

Family

ID=19860300

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93200102T Expired - Lifetime ES2108203T3 (es) 1992-01-15 1993-01-15 Sistema para determinar la topografia de una superficie curvada.

Country Status (7)

Country Link
US (1) US5406342A (es)
EP (1) EP0551955B1 (es)
JP (1) JP2599876B2 (es)
DE (1) DE69312975T2 (es)
DK (1) DK0551955T3 (es)
ES (1) ES2108203T3 (es)
NL (1) NL9200071A (es)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6454761B1 (en) * 1995-01-30 2002-09-24 Philip D. Freedman Laser surgery device and method
US5867250A (en) * 1996-05-03 1999-02-02 Baron; William S. Apparatus and method for optically mapping front and back surface topographies of an object
US5735283A (en) * 1996-10-09 1998-04-07 Snook; Richard Kieth Surgical keratometer system for measuring surface topography of a cornea during surgery
US6079831A (en) 1997-04-24 2000-06-27 Orbtek, Inc. Device and method for mapping the topography of an eye using elevation measurements in combination with slope measurements
US5864383A (en) * 1997-04-24 1999-01-26 Orbtek, Inc. Single-curvature placido plate
DE19815201A1 (de) * 1998-04-04 1999-10-07 Link Johann & Ernst Gmbh & Co Meßanordnung zur Erfassung von Dimensionen von Prüflingen, vorzugsweise von Hohlkörpern, insbesondere von Bohrungen in Werkstücken, sowie Verfahren zur Messung solcher Dimensionen
US6024449A (en) * 1998-07-13 2000-02-15 Smith; Robert F. High speed topography measurement of semi-diffuse objects
JP2000292135A (ja) * 1999-04-07 2000-10-20 Minolta Co Ltd ３次元情報入力カメラ
JP4651253B2 (ja) * 1999-07-28 2011-03-16 ヴィスクス インコーポレイテッド レーザー切除のための水和及び地形計測
US6639685B1 (en) 2000-02-25 2003-10-28 General Motors Corporation Image processing method using phase-shifted fringe patterns and curve fitting
US7038681B2 (en) * 2000-03-29 2006-05-02 Sourceprose Corporation System and method for georeferencing maps
US7190377B2 (en) * 2000-03-29 2007-03-13 Sourceprose Corporation System and method for georeferencing digital raster maps with resistance to potential errors
US7148898B1 (en) 2000-03-29 2006-12-12 Sourceprose Corporation System and method for synchronizing raster and vector map images
SE0003904L (sv) * 2000-05-05 2001-11-06 Roger Tuomas Sätt att mäta ytråhet
FR2817042B1 (fr) 2000-11-22 2003-06-20 Saint Gobain Procede et dispositif d'analyse de la surface d'un substrat
DE10061326A1 (de) 2000-12-08 2002-06-27 Bioshape Ag Verfahren und Vorrichtung zur Topologieermittlung von biologischem Gewebe
JP3519698B2 (ja) * 2001-04-20 2004-04-19 照明 與語 ３次元形状測定方法
DE10132309B4 (de) * 2001-07-06 2006-09-21 Geometrie Concern Verwaltungs- Und Beteiligungsgesellschaft Mbh Visuelles Kontrollverfahren und Kontrollsystem
US6575573B2 (en) 2001-10-17 2003-06-10 Carl Zeiss Ophthalmic Systems, Inc. Method and apparatus for measuring a corneal profile of an eye
US7164817B2 (en) 2002-05-24 2007-01-16 Hoya Corporation Optical switch and optical add/drop multiplexer using the same
WO2003100498A1 (en) 2002-05-24 2003-12-04 Hoya Corporation Optical switch and optical branch/insertion unit comprising it
EP1516156B1 (en) 2002-05-30 2019-10-23 AMO Manufacturing USA, LLC Tracking torsional eye orientation and position
US7083609B2 (en) * 2002-06-13 2006-08-01 Visx, Incorporated Corneal topography-based target warping
US7133137B2 (en) 2002-06-27 2006-11-07 Visx, Incorporated Integrated scanning and ocular tomography system and method
US7458683B2 (en) * 2003-06-16 2008-12-02 Amo Manufacturing Usa, Llc Methods and devices for registering optical measurement datasets of an optical system
US7481536B2 (en) * 2004-02-19 2009-01-27 Amo Manufacturing Usa, Llc Methods and systems for differentiating left and right eye images
US7369253B2 (en) * 2004-10-13 2008-05-06 Akrometrix, Llc Systems and methods for measuring sample surface flatness of continuously moving samples
US7866820B2 (en) * 2006-02-14 2011-01-11 Vision Optimization, Llc Corneo-scleral topography system
DE102006028238B3 (de) * 2006-06-20 2007-07-19 Benecke-Kaliko Ag Verfahren zur Analyse der Reflexionseigenschaften
DE102007017611A1 (de) * 2007-04-12 2008-10-16 SCHRÜNDER, Stephan Verfahren und System zur Augenvermessung
EP2040061A1 (en) * 2007-09-24 2009-03-25 Koninklijke Philips Electronics N.V. An apparatus and method for observing the surface of a sample
US8064068B2 (en) 2008-01-25 2011-11-22 Cyberoptics Corporation Multi-source sensor for three-dimensional imaging using phased structured light
US8059280B2 (en) * 2008-01-31 2011-11-15 Cyberoptics Corporation Method for three-dimensional imaging using multi-phase structured light
CA2731811C (en) * 2008-04-04 2016-12-13 Amo Wavefront Sciences, Llc Registering multiple ophthalmic datasets
US9504376B2 (en) 2009-12-22 2016-11-29 Amo Wavefront Sciences, Llc Optical diagnosis using measurement sequence
JP5743433B2 (ja) * 2010-06-03 2015-07-01 株式会社マクシス・シントー 三次元形状計測装置
GB201010244D0 (en) * 2010-06-18 2010-07-21 Hyde John Line and image capture for 3D applications independent of high ambient lighting conditions
DE102010060448B4 (de) * 2010-11-09 2021-07-01 Eberhard Lange Projektionsvorrichtung zum Projizieren eines zu projizierenden Objekts
US20130138094A1 (en) 2011-11-30 2013-05-30 Amo Development, Llc System and method for ophthalmic surface measurements based on sequential estimates
WO2015054672A1 (en) 2013-10-10 2015-04-16 The Regents Of The University Of California Ocular cellscope apparatus
EP3065622B1 (en) * 2013-11-08 2019-06-12 Precision Ocular Metrology, LLC Mapping the ocular surface
CN105890876B (zh) * 2014-12-10 2018-07-06 青岛理工大学 正弦光强靶标光学信号发生方法及系统
WO2016123448A2 (en) * 2015-01-30 2016-08-04 Catanzariti Scott Paul Systems and method for mapping the ocular surface usually obstructed by the eyelids
DE102015001365A1 (de) * 2015-02-03 2016-08-04 EnShape GmbH Verfahren zur 3d-vermessung von flüssigkeiten und gelen
EP3405093B1 (en) 2016-01-20 2024-09-25 Eaglet Eye B.V. Improved eye surface topographer
WO2017180965A1 (en) 2016-04-15 2017-10-19 The Regents Of The University Of California Retinal cellscope apparatus
WO2020102658A2 (en) * 2018-11-16 2020-05-22 Carestream Dental Llc Laser projection system
WO2021003444A2 (en) * 2019-07-02 2021-01-07 Nikon Corporation Metrology for additive manufacturing
CN110897608B (zh) * 2019-12-15 2022-05-03 深圳市具安科技有限公司 斑马鱼眼动分析方法、装置及计算机设备
US12474266B2 (en) * 2021-09-17 2025-11-18 San Diego State University (Sdsu) Foundation Method and system for moiré profilimetry using simultaneous dual fringe projection

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2254781A1 (en) * 1973-12-18 1975-07-11 Schaeffer Bernard Rastered photogrammetry technique - involves projecting image of rastered object through second raster
FR2292213A1 (fr) * 1974-11-21 1976-06-18 Cem Comp Electro Mec Procede et dispositif permettant de determiner le signe des lignes de niveau d'un objet
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
JPS61219804A (ja) * 1985-03-27 1986-09-30 Hitachi Ltd 線状物体の高さ測定方法
JPS6345113A (ja) * 1986-08-13 1988-02-26 Catalysts & Chem Ind Co Ltd 低濁度および低粘度のシリカゾル
US4722600A (en) * 1986-10-14 1988-02-02 Chiang Fu Pen Apparatus and method for measuring strain
JPH02119837A (ja) * 1988-10-28 1990-05-07 Kowa Co 眼科測定方法および装置
JPH02271208A (ja) * 1989-04-13 1990-11-06 Nippondenso Co Ltd ３次元形状測定装置
DE4007502A1 (de) * 1990-03-09 1991-09-12 Zeiss Carl Fa Verfahren und vorrichtung zur beruehrungslosen vermessung von objektoberflaechen
DE4007500A1 (de) * 1990-03-09 1991-09-12 Zeiss Carl Fa Verfahren und vorrichtung zur beruehrungslosen vermessung von objektoberflaechen

Also Published As

Publication number Publication date
DE69312975D1 (de) 1997-09-18
US5406342A (en) 1995-04-11
JPH0771934A (ja) 1995-03-17
DK0551955T3 (da) 1998-03-30
DE69312975T2 (de) 1998-03-05
EP0551955A1 (en) 1993-07-21
EP0551955B1 (en) 1997-08-13
JP2599876B2 (ja) 1997-04-16
NL9200071A (nl) 1993-08-02

Similar Documents

Publication Publication Date Title
ES2108203T3 (es) Sistema para determinar la topografia de una superficie curvada.
US2242590A (en) Light reflector
KR910700594A (ko) 3차원 디스플레이 장치
FR2429122A1 (fr) Bloc d'instruments indicateurs avec panneau de montage eclaire
ATE198001T1 (de) Sichtgerät und verfahren zum simultanen ermitteln der farbwechselcharakteristika eines optisch variablen gegenstandes
AT358638B (de) Schaltung zur helligkeitsgestuften bildwieder- gabe bei anzeigetafeln, in denen einzel-licht- quellen in matrixform angeordnet sind
DE3787970D1 (de) Stereoskopisches Wiedergabegerät mit beleuchteten Zeilen und Lichtventilen.
GB1374995A (en) Optical arrangement
US2915843A (en) Sign
US3568177A (en) Multicolor indicators
CH508894A (de) Beleuchtungseinrichtung zur Beleuchtung eines ebenen Objektes in einem Projektionsapparat
DE59500333D1 (de) Vorrichtung zum abbilden eines dreidimensionalen objekts
US1700383A (en) Street sign
US2153634A (en) Signaling arm
DE502004003454D1 (de) Beleuchtungseinrichtung für eine Überwachungskamera
DE59913000D1 (de) Vorrichtung zur eingabe von werten mit einem bildschirm
RU114212U1 (ru) Информационный рекламно-развлекательный блок
US1123969A (en) Illuminated sign.
EP0336114A3 (de) Vorrichtung zur Lageerfassung der Anschlusskontakte elektrischer oder elektronischer Bauelemente
ES2049742T3 (es) Camara de television en color.
US2077759A (en) Sign
US1527977A (en) Sign
US1386666A (en) Direction-indicator and measuring instrument
SU1684626A1 (ru) Применение тонкомолотой слюды в качестве наполнител в суспензии дл вы влени структуры потока жидкости
JPS60721B2 (ja) 照明設計図表

Legal Events

Date Code Title Description
FA2A Application withdrawn

Effective date: 19941116

FG2A Definitive protection

Ref document number: 551955

Country of ref document: ES