DE2422491C2 - Refraktometer zur selbsttätigen Bestimmung des Brechkraftfehlers eines Auges - Google Patents

Refraktometer zur selbsttätigen Bestimmung des Brechkraftfehlers eines Auges

Info

Publication number
DE2422491C2
DE2422491C2 DE19742422491 DE2422491A DE2422491C2 DE 2422491 C2 DE2422491 C2 DE 2422491C2 DE 19742422491 DE19742422491 DE 19742422491 DE 2422491 A DE2422491 A DE 2422491A DE 2422491 C2 DE2422491 C2 DE 2422491C2
Authority
DE
Germany
Prior art keywords
eye
digital computer
refractometer
measurement
measurement image
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
Application number
DE19742422491
Other languages
German (de)
English (en)
Other versions
DE2422491A1 (de
Inventor
James W. Rochester N.Y. Horwitz
Charles R. Fairport N.Y. Munnerlyn
Bruce R. Penfield N.Y. Robinson
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.)
Tropel Inc
Original Assignee
Tropel 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 Tropel Inc filed Critical Tropel Inc
Publication of DE2422491A1 publication Critical patent/DE2422491A1/de
Application granted granted Critical
Publication of DE2422491C2 publication Critical patent/DE2422491C2/de
Expired legal-status Critical Current

Links

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
    • A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
DE19742422491 1973-05-09 1974-05-09 Refraktometer zur selbsttätigen Bestimmung des Brechkraftfehlers eines Auges Expired DE2422491C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35870273A 1973-05-09 1973-05-09

Publications (2)

Publication Number Publication Date
DE2422491A1 DE2422491A1 (de) 1974-11-28
DE2422491C2 true DE2422491C2 (de) 1984-09-27

Family

ID=23410694

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742422491 Expired DE2422491C2 (de) 1973-05-09 1974-05-09 Refraktometer zur selbsttätigen Bestimmung des Brechkraftfehlers eines Auges

Country Status (4)

Country Link
JP (1) JPS542519B2 (no)
DE (1) DE2422491C2 (no)
FR (1) FR2228461B1 (no)
GB (1) GB1456061A (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703723C3 (de) * 1977-01-29 1986-05-07 Fa. Carl Zeiss, 7920 Heidenheim Optisches System zur Beleuchtung des Augenhintergrundes und zur Abbildung von Testmarken auf demselben
US4180323A (en) * 1977-09-30 1979-12-25 American Optical Corporation Alignment system and ophthalmic instrument incorporating the same
JPS5542624A (en) * 1978-09-20 1980-03-26 Canon Kk Automatic eye refraction measuring system
JPS56813U (no) * 1979-06-18 1981-01-07
JPS565636A (en) * 1979-06-27 1981-01-21 Canon Kk Automatic eye refraction meter
JPS56161032A (en) * 1980-05-16 1981-12-11 Canon Kk Automatic eye refraction meter
FR2486795A1 (fr) * 1980-07-21 1982-01-22 France Etat Refractometre objectif assiste par microprocesseur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524702A (en) * 1968-09-06 1970-08-18 John G Bellows Apparatus for objectively and automatically refracting the eye

Also Published As

Publication number Publication date
FR2228461A1 (no) 1974-12-06
FR2228461B1 (no) 1978-01-13
JPS5015388A (no) 1975-02-18
DE2422491A1 (de) 1974-11-28
GB1456061A (en) 1976-11-17
JPS542519B2 (no) 1979-02-08

Similar Documents

Publication Publication Date Title
DE2637496C2 (de) Vorrichtung zum automatischen Betrieb eines Mikroskopes
DE2810539C2 (de) Optisches Gerät zur optjektiven Untersuchung der Augenbrechkraft
DE69729701T2 (de) Vorrichtung zur Messung der Refraktion eines Auges
DE2449910C2 (de) Automatisches Augenrefraktometer
DE2951897C2 (no)
DE2828405C2 (no)
DE3204876C2 (de) Vorrichtung zur Bestimmung des Refraktionszustandes des menschlichen Auges
DE60024662T2 (de) Wellenfrontsensor mit mehrfachleistungsstrahlmodus
DE2654608C3 (de) Refraktometer zur selbsttätigen objektiven Ermittlung des Refraktionszustandes eines Auges
DE68911975T2 (de) Ophthalmoskopisches Diagnoseverfahren und Gerät.
DE3020804A1 (de) Augenrefraktometer
DE3245939A1 (de) Vorrichtung zur erzeugung eines bildes des augenhintergrundes
EP1105038A1 (de) Vorrichtung zur ermittlung der oberflächenform von biologischem gewebe
DE68922973T2 (de) Anordnung zur Bestimmung der Augenbrechkraft.
EP1555932A1 (de) Ophthalmologisches gerät und verfahren zur gerätepositionierung
DE2458807A1 (de) Verfahren zum messen von abstaenden
DE3215483A1 (de) Augenuntersuchungsinstrument
DE2422491C2 (de) Refraktometer zur selbsttätigen Bestimmung des Brechkraftfehlers eines Auges
DE3102450C2 (no)
DE3108364A1 (de) Augenuntersuchungsvorrichtung
DE2200664A1 (de) Selbsttaetige fokussiervorrichtung
DE68911974T2 (de) Ophthalmologisches Diagnose-Verfahren und Gerät.
DE3050691C2 (de) Fokussierungsermittlungseinrichtung einer Kamera mit einer Vorrichtung zur Ermittlung der Durchschnittsbeleuchtung eines zu fotografierenden Objektes
EP1416843B1 (de) Vorrichtung zur kontaktlosen gewinnung von bildern der kornea
DE3118560A1 (de) Verfahren und vorrichtung zum messen von augenbrechnungsfehlern

Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: SPOTT, G., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 800

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee