CA1078175A - Appareil automatique pour determiner l'acuite visuelle et les reflexes - Google Patents

Appareil automatique pour determiner l'acuite visuelle et les reflexes

Info

Publication number
CA1078175A
CA1078175A CA241,073A CA241073A CA1078175A CA 1078175 A CA1078175 A CA 1078175A CA 241073 A CA241073 A CA 241073A CA 1078175 A CA1078175 A CA 1078175A
Authority
CA
Canada
Prior art keywords
subject
figures
visual acuity
eyepiece
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
CA241,073A
Other languages
English (en)
French (fr)
Other versions
CA241073S (en
Inventor
Frederic Lelouch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1078175A publication Critical patent/CA1078175A/fr
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/16Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/162Testing reaction times
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
    • A61B3/032Devices for presenting test symbols or characters, e.g. test chart projectors
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F17/00Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/02Coin-freed apparatus for hiring articles; Coin-freed facilities or services for optical devices, e.g. telescopes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Psychiatry (AREA)
  • Pathology (AREA)
  • Social Psychology (AREA)
  • Psychology (AREA)
  • Hospice & Palliative Care (AREA)
  • Educational Technology (AREA)
  • Developmental Disabilities (AREA)
  • Child & Adolescent Psychology (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Eye Examination Apparatus (AREA)
CA241,073A 1975-01-23 1975-12-04 Appareil automatique pour determiner l'acuite visuelle et les reflexes Expired CA1078175A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7502066A FR2298310A1 (fr) 1975-01-23 1975-01-23 Appareil de controle sensoriel d'un sujet

Publications (1)

Publication Number Publication Date
CA1078175A true CA1078175A (fr) 1980-05-27

Family

ID=9150217

Family Applications (1)

Application Number Title Priority Date Filing Date
CA241,073A Expired CA1078175A (fr) 1975-01-23 1975-12-04 Appareil automatique pour determiner l'acuite visuelle et les reflexes

Country Status (5)

Country Link
US (1) US4070102A (Direct)
CA (1) CA1078175A (Direct)
DE (1) DE2602248A1 (Direct)
FR (1) FR2298310A1 (Direct)
GB (1) GB1479568A (Direct)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399459A (en) * 1981-10-30 1983-08-16 Nicolet Instrument Corporation Flexible video synchronization circuit
US4415921A (en) * 1981-10-30 1983-11-15 Nicolet Instrument Corporation Automatic calibration system for video displays in vision testing
JPS5988136A (ja) * 1982-10-29 1984-05-22 コヒ−レント・インコ−ポレ−テツド 視力鋭敏度検査機
US4552440A (en) * 1983-10-12 1985-11-12 Guyton D L Apparatus for determination of potential visual acuity utilizing a slit lamp microscope
GB2352399B (en) * 1999-06-10 2003-09-10 David Stephen Warren Reaction and concentration enhancing machine
US11191316B2 (en) 2017-04-26 2021-12-07 Fend Corp. Collapsible helmet
EP4333688A4 (en) * 2021-05-03 2025-03-05 Junzhong Liang SYSTEMS FOR REMOTE EYE EXAMINATIONS AND AUTO-REFRACTION OF HUMAN EYES

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US416599A (en) * 1889-12-03 green
US3012472A (en) * 1959-02-26 1961-12-12 Titmus Optical Company Inc Eye testing apparatus
US3288546A (en) * 1965-03-30 1966-11-29 Jerome A Gans Automatic self-recording visual field tester
US3486813A (en) * 1967-05-05 1969-12-30 Tracor Vision testing device
US3573843A (en) * 1968-02-16 1971-04-06 Industrial Nucleonics Corp Data and time recorder
US3698385A (en) * 1970-10-07 1972-10-17 Nasa Reaction tester
US3747589A (en) * 1971-05-19 1973-07-24 Xerox Corp Reaction time testing apparatus
USRE28921E (en) 1971-07-06 1976-08-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Visual examination apparatus
US3864695A (en) * 1972-09-25 1975-02-04 Asahi Optical Co Ltd Pen having vertical movement control
US3861790A (en) * 1973-02-14 1975-01-21 Raymond M Tamura Dynamic visual acuity testing system
US3905688A (en) * 1973-09-24 1975-09-16 Baylor College Medicine Apparatus for determining the acuity of a human

Also Published As

Publication number Publication date
FR2298310B1 (Direct) 1977-11-10
DE2602248A1 (de) 1976-07-29
FR2298310A1 (fr) 1976-08-20
US4070102A (en) 1978-01-24
GB1479568A (en) 1977-07-13

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Legal Events

Date Code Title Description
MKEX Expiry