FR2379048A1 - Dispositif de mesure de la courbure d'une lentille ou autre objet cintre - Google Patents

Dispositif de mesure de la courbure d'une lentille ou autre objet cintre

Info

Publication number
FR2379048A1
FR2379048A1 FR7702346A FR7702346A FR2379048A1 FR 2379048 A1 FR2379048 A1 FR 2379048A1 FR 7702346 A FR7702346 A FR 7702346A FR 7702346 A FR7702346 A FR 7702346A FR 2379048 A1 FR2379048 A1 FR 2379048A1
Authority
FR
France
Prior art keywords
lens
needle
curvature
support
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.)
Granted
Application number
FR7702346A
Other languages
English (en)
Other versions
FR2379048B1 (fr
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.)
Medicornea SA
Original Assignee
Medicornea SA
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 Medicornea SA filed Critical Medicornea SA
Priority to FR7702346A priority Critical patent/FR2379048A1/fr
Priority to ES463472A priority patent/ES463472A1/es
Priority to JP14458177A priority patent/JPS5393866A/ja
Priority to DE19772757730 priority patent/DE2757730A1/de
Priority to IT83554/77A priority patent/IT1097715B/it
Priority to GB934/78A priority patent/GB1574112A/en
Priority to US05/868,536 priority patent/US4171576A/en
Publication of FR2379048A1 publication Critical patent/FR2379048A1/fr
Application granted granted Critical
Publication of FR2379048B1 publication Critical patent/FR2379048B1/fr
Granted 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
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Eyeglasses (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

L'invention concerne un dispositif de mesure de la courbure d'une lentille ou autre objet cintré. Ce dispositif comprend un support périphérique de lentille 3, un pointeau de palpage 4, des moyens de guidage 2 de ce dernier, des moyens de déplacement 8 et 12 dudit pointeau par rapport audit support, des moyens électriques 5, 6 et 7 pour établir une difference de potentiel entre le pointeau 4 et le support de lentille 3, prévus en un matériau électriquement conducteur, des moyens de détection du passage du courant électrique entre ce pointeau et ce support, un système de mesure 10, et un ensemble électronique de traitement recevant les signaux ci-dessus, adapté pour mémoriser la valeur du signal de mesure à l'instant d'apparition du signal issu de moyens de détection. L'invention peut en particulier être appliquée pour mesurer, dans de remarquables conditions de précision et de rapidité, le rayon de courbure de la face concave d'une lentille souple de contact
FR7702346A 1977-01-26 1977-01-26 Dispositif de mesure de la courbure d'une lentille ou autre objet cintre Granted FR2379048A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7702346A FR2379048A1 (fr) 1977-01-26 1977-01-26 Dispositif de mesure de la courbure d'une lentille ou autre objet cintre
ES463472A ES463472A1 (es) 1977-01-26 1977-10-22 Perfeccionamientos en los sistemas de medicion del radio de curvatura de una lentilla u otro objeto curvado analogo.
JP14458177A JPS5393866A (en) 1977-01-26 1977-12-01 Measuring apparatus for radius of curvature
DE19772757730 DE2757730A1 (de) 1977-01-26 1977-12-23 Vorrichtung zum messen der kruemmung einer linse oder eines anderen gebogenen gegenstandes
IT83554/77A IT1097715B (it) 1977-01-26 1977-12-23 Dispositivo di misura della curvatura di una lente od altro oggetto incurvato
GB934/78A GB1574112A (en) 1977-01-26 1978-01-10 Apparatus for measuring the curvature of curved objects
US05/868,536 US4171576A (en) 1977-01-26 1978-01-11 Apparatus for measuring the curvature of curved objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702346A FR2379048A1 (fr) 1977-01-26 1977-01-26 Dispositif de mesure de la courbure d'une lentille ou autre objet cintre

Publications (2)

Publication Number Publication Date
FR2379048A1 true FR2379048A1 (fr) 1978-08-25
FR2379048B1 FR2379048B1 (fr) 1982-03-05

Family

ID=9185987

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702346A Granted FR2379048A1 (fr) 1977-01-26 1977-01-26 Dispositif de mesure de la courbure d'une lentille ou autre objet cintre

Country Status (7)

Country Link
US (1) US4171576A (fr)
JP (1) JPS5393866A (fr)
DE (1) DE2757730A1 (fr)
ES (1) ES463472A1 (fr)
FR (1) FR2379048A1 (fr)
GB (1) GB1574112A (fr)
IT (1) IT1097715B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000195A1 (fr) * 1980-07-07 1982-01-21 Ab Viak Dispositif de mesure des dimensions d'une lingotiere

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561329A (en) * 1979-06-19 1981-01-09 Minolta Camera Co Ltd Monolithicly molded plastic optical element
US4403420A (en) * 1981-07-27 1983-09-13 Coburn Optical Industries, Inc. Digital gauge for measuring sagittal depth and thickness of lens, and related system and method
US4665624A (en) * 1984-11-20 1987-05-19 Michael Wodis Contact lens analyzing apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1961764A (en) * 1933-01-12 1934-06-05 Gen Electric Film micrometer
US2566970A (en) * 1948-01-07 1951-09-04 Swensson Sven Olof Expansion gauge
US3135055A (en) * 1960-10-19 1964-06-02 United Aircraft Corp Workpiece inspection system
JPS42202Y1 (fr) * 1964-05-19 1967-01-09
US3315367A (en) * 1964-11-27 1967-04-25 Strasbaugh Electronic spherometers
US3795054A (en) * 1970-08-13 1974-03-05 American Welding Mfg Co Method and apparatus for calibrating the position of a tool and for gauging the dimension of a workpiece
JPS5418576B2 (fr) * 1971-12-16 1979-07-09
US3844047A (en) * 1973-01-29 1974-10-29 R Carson Electronic micrometers employing digital processing techniques
JPS5217819B2 (fr) * 1973-04-19 1977-05-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000195A1 (fr) * 1980-07-07 1982-01-21 Ab Viak Dispositif de mesure des dimensions d'une lingotiere

Also Published As

Publication number Publication date
DE2757730A1 (de) 1978-07-27
FR2379048B1 (fr) 1982-03-05
IT1097715B (it) 1985-08-31
GB1574112A (en) 1980-09-03
US4171576A (en) 1979-10-23
ES463472A1 (es) 1978-07-01
JPS5393866A (en) 1978-08-17

Similar Documents

Publication Publication Date Title
US4444644A (en) PH Electrode
JPS5784337A (en) Double optical probe apparatus for measuring refractive index of fluid reduced in case of specified reference temperature
DE59008200D1 (de) Elektrische Messeinrichtung für die Laufzeitmessung eines elektrischen Signals.
ATE32427T1 (de) Geraet und verfahren zur faehigkeitspruefung mittels temperaturdifferenzen.
DE69923999D1 (de) Elektrostatischer kraftmessfühler mit ausleger und abschirmung
FR2447025A1 (fr) Appareil pour essais de micro-durete
GB1406644A (en) Measuring system for non-destructive thickness measurement of electrically non-conductive coating on electrically conductive bodies
FR2457480A1 (fr) Dispositif de mesure d'un niveau de liquide
GB2127966A (en) Method and apparatus for detecting sound source
FR2386803A1 (fr) Jauge d'interieurs
FR2379048A1 (fr) Dispositif de mesure de la courbure d'une lentille ou autre objet cintre
FR2410249A1 (fr) Dispositif permettant d'effectuer simultanement des mesures d'alignement et de direction
GB982632A (en) Physiological fluid pressure measuring apparatus
FR2740224B1 (fr) Disposition de sonde de mesure par contact pour connecter electriquement un systeme de test aux plages de contact circulaires d'un dispositif qui doit etre teste
FR2368691A1 (fr) Dispositif pour mesurer les dimensions interieures d'un pipeline
ATE8180T1 (de) Vorrichtung zum messen der dicke.
FR3115883B1 (fr) Dispositif de détection du couplage capacitif entre un objet et une surface de détection
FR2414721A1 (fr) Appareil pour la mesure de faibles debits ponderaux de liquide
FR2404831A1 (fr) Determination de la profondeur sagittale et de la courbure centrale moyenne de lentilles de contact en materiau gelatineux
SU463077A1 (ru) Способ определени места повреждени изол ции кабел
EP0352587A3 (fr) Dispositif de pesage électronique
JPS5773605A (en) Imeasuring device for height of reinforcement of weld of internal-surface
SU198504A1 (ru) СЕСОЮЗНАЯ IlMf№S2''''^ЬЙЬЛИО-^^адПРИБОР дл
JPS57179638A (en) Abberation measuring apparatus
SU1045171A1 (ru) Устройство дл измерени электрического потенциала зар женной поверхности

Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse