FR446969A - Optical instruments for oculists - Google Patents

Optical instruments for oculists

Info

Publication number
FR446969A
FR446969A FR446969DA FR446969A FR 446969 A FR446969 A FR 446969A FR 446969D A FR446969D A FR 446969DA FR 446969 A FR446969 A FR 446969A
Authority
FR
France
Prior art keywords
oculists
optical instruments
instruments
optical
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
Other languages
French (fr)
Inventor
George Adelmer Rogers
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 FR446969A publication Critical patent/FR446969A/en
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
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
FR446969D 1912-08-07 1912-08-07 Optical instruments for oculists Expired FR446969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR446969T 1912-08-07

Publications (1)

Publication Number Publication Date
FR446969A true FR446969A (en) 1912-12-19

Family

ID=1487702

Family Applications (1)

Application Number Title Priority Date Filing Date
FR446969D Expired FR446969A (en) 1912-08-07 1912-08-07 Optical instruments for oculists

Country Status (1)

Country Link
FR (1) FR446969A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450096A1 (en) * 1979-02-28 1980-09-26 American Optical Corp CONVERGENCE MECHANISM FOR BINOCULAR REFRACTOR
DE4021092A1 (en) * 1989-07-04 1991-01-17 Topcon Corp Subjective optometry system for eye sight testing - uses driven support rod with attached near range index

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450096A1 (en) * 1979-02-28 1980-09-26 American Optical Corp CONVERGENCE MECHANISM FOR BINOCULAR REFRACTOR
DE4021092A1 (en) * 1989-07-04 1991-01-17 Topcon Corp Subjective optometry system for eye sight testing - uses driven support rod with attached near range index
DE4021092C2 (en) * 1989-07-04 1998-09-10 Topcon Corp Device for subjective eye refraction

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