FR2461316B1 - - Google Patents

Info

Publication number
FR2461316B1
FR2461316B1 FR7917551A FR7917551A FR2461316B1 FR 2461316 B1 FR2461316 B1 FR 2461316B1 FR 7917551 A FR7917551 A FR 7917551A FR 7917551 A FR7917551 A FR 7917551A FR 2461316 B1 FR2461316 B1 FR 2461316B1
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
FR7917551A
Other languages
French (fr)
Other versions
FR2461316A1 (en
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.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique 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 Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Priority to FR7917551A priority Critical patent/FR2461316A1/en
Publication of FR2461316A1 publication Critical patent/FR2461316A1/en
Application granted granted Critical
Publication of FR2461316B1 publication Critical patent/FR2461316B1/fr
Granted 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
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
    • A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
    • 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
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/08—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus

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)
FR7917551A 1979-07-06 1979-07-06 Test presentation on screen - incorporates optical system with two projectors on one screen using mirrors one of which is motor driven Granted FR2461316A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7917551A FR2461316A1 (en) 1979-07-06 1979-07-06 Test presentation on screen - incorporates optical system with two projectors on one screen using mirrors one of which is motor driven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7917551A FR2461316A1 (en) 1979-07-06 1979-07-06 Test presentation on screen - incorporates optical system with two projectors on one screen using mirrors one of which is motor driven

Publications (2)

Publication Number Publication Date
FR2461316A1 FR2461316A1 (en) 1981-01-30
FR2461316B1 true FR2461316B1 (en) 1983-09-02

Family

ID=9227587

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917551A Granted FR2461316A1 (en) 1979-07-06 1979-07-06 Test presentation on screen - incorporates optical system with two projectors on one screen using mirrors one of which is motor driven

Country Status (1)

Country Link
FR (1) FR2461316A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0616749B2 (en) * 1985-12-28 1994-03-09 株式会社トプコン Optometry device
JPS62159635A (en) * 1985-12-28 1987-07-15 株式会社トプコン Sight function examination apparatus
DE4223144B4 (en) * 1991-07-15 2008-01-17 Nidek Co., Ltd., Gamagori Optometric device
US5444504A (en) * 1992-02-21 1995-08-22 Nidek Co., Ltd. Optometric apparatus
WO1995010219A1 (en) * 1992-06-08 1995-04-20 Harper Gilberto B Quantitative assessment of human ocular coordination
JP3434902B2 (en) * 1994-08-10 2003-08-11 株式会社ニデック Visual function testing device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2104552A (en) * 1936-05-05 1938-01-04 Willis B Blee Optometric apparatus
GB624728A (en) * 1946-11-26 1949-06-15 Frank William Mason Improvements in sight-testing appliances
US2868068A (en) * 1953-04-28 1959-01-13 John M Richards Apparatus for testing eyes
US3969020A (en) * 1973-12-28 1976-07-13 Giles C. Clegg, Jr. Automatic refraction apparatus and method

Also Published As

Publication number Publication date
FR2461316A1 (en) 1981-01-30

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Legal Events

Date Code Title Description
ST Notification of lapse