FR2228461B1 - - Google Patents

Info

Publication number
FR2228461B1
FR2228461B1 FR7415962A FR7415962A FR2228461B1 FR 2228461 B1 FR2228461 B1 FR 2228461B1 FR 7415962 A FR7415962 A FR 7415962A FR 7415962 A FR7415962 A FR 7415962A FR 2228461 B1 FR2228461 B1 FR 2228461B1
Authority
FR
France
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
FR7415962A
Other languages
French (fr)
Other versions
FR2228461A1 (et
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 FR2228461A1 publication Critical patent/FR2228461A1/fr
Application granted granted Critical
Publication of FR2228461B1 publication Critical patent/FR2228461B1/fr
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)
FR7415962A 1973-05-09 1974-05-08 Expired FR2228461B1 (et)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2228461A1 FR2228461A1 (et) 1974-12-06
FR2228461B1 true FR2228461B1 (et) 1978-01-13

Family

ID=23410694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415962A Expired FR2228461B1 (et) 1973-05-09 1974-05-08

Country Status (4)

Country Link
JP (1) JPS542519B2 (et)
DE (1) DE2422491C2 (et)
FR (1) FR2228461B1 (et)
GB (1) GB1456061A (et)

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 (et) * 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
DE2422491A1 (de) 1974-11-28
JPS5015388A (et) 1975-02-18
DE2422491C2 (de) 1984-09-27
FR2228461A1 (et) 1974-12-06
GB1456061A (en) 1976-11-17
JPS542519B2 (et) 1979-02-08

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Legal Events

Date Code Title Description
ST Notification of lapse