ES215228Y - Proyector dirigido a distancia para proyeccion de tests, destinados a reconocimiento de la vista. - Google Patents

Proyector dirigido a distancia para proyeccion de tests, destinados a reconocimiento de la vista.

Info

Publication number
ES215228Y
ES215228Y ES1975215228U ES215228U ES215228Y ES 215228 Y ES215228 Y ES 215228Y ES 1975215228 U ES1975215228 U ES 1975215228U ES 215228 U ES215228 U ES 215228U ES 215228 Y ES215228 Y ES 215228Y
Authority
ES
Spain
Prior art keywords
tests
projection
intended
sight recognition
distance directed
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
ES1975215228U
Other languages
English (en)
Other versions
ES215228U (es
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.)
Optische Werke G Rodenstock
Original Assignee
Optische Werke G Rodenstock
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 Optische Werke G Rodenstock filed Critical Optische Werke G Rodenstock
Publication of ES215228U publication Critical patent/ES215228U/es
Application granted granted Critical
Publication of ES215228Y publication Critical patent/ES215228Y/es
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
    • 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

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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Machine Translation (AREA)
  • Character Discrimination (AREA)
  • Push-Button Switches (AREA)
ES1975215228U 1974-10-11 1975-09-18 Proyector dirigido a distancia para proyeccion de tests, destinados a reconocimiento de la vista. Expired ES215228Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7434126 1974-10-11

Publications (2)

Publication Number Publication Date
ES215228U ES215228U (es) 1976-07-16
ES215228Y true ES215228Y (es) 1976-12-01

Family

ID=6646976

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1975215228U Expired ES215228Y (es) 1974-10-11 1975-09-18 Proyector dirigido a distancia para proyeccion de tests, destinados a reconocimiento de la vista.

Country Status (2)

Country Link
ES (1) ES215228Y (es)
FR (1) FR2287200A1 (es)

Also Published As

Publication number Publication date
FR2287200A1 (fr) 1976-05-07
ES215228U (es) 1976-07-16

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