SE7415598L - DEVICE FOR CONTROL OF VISIBILITY - Google Patents

DEVICE FOR CONTROL OF VISIBILITY

Info

Publication number
SE7415598L
SE7415598L SE7415598A SE7415598A SE7415598L SE 7415598 L SE7415598 L SE 7415598L SE 7415598 A SE7415598 A SE 7415598A SE 7415598 A SE7415598 A SE 7415598A SE 7415598 L SE7415598 L SE 7415598L
Authority
SE
Sweden
Prior art keywords
visibility
control
Prior art date
Application number
SE7415598A
Other languages
Swedish (sv)
Other versions
SE391871B (en
Inventor
Curt Bruno Ewert Lindell
Original Assignee
Curt Bruno Ewert Lindell
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 Curt Bruno Ewert Lindell filed Critical Curt Bruno Ewert Lindell
Priority to SE7415598A priority Critical patent/SE391871B/en
Publication of SE7415598L publication Critical patent/SE7415598L/en
Publication of SE391871B publication Critical patent/SE391871B/en

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
    • 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)
  • 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)
SE7415598A 1974-12-12 1974-12-12 DEVICE FOR CONTROL OF VISIBILITY SE391871B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7415598A SE391871B (en) 1974-12-12 1974-12-12 DEVICE FOR CONTROL OF VISIBILITY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7415598A SE391871B (en) 1974-12-12 1974-12-12 DEVICE FOR CONTROL OF VISIBILITY

Publications (2)

Publication Number Publication Date
SE7415598L true SE7415598L (en) 1976-06-14
SE391871B SE391871B (en) 1977-03-07

Family

ID=20322985

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7415598A SE391871B (en) 1974-12-12 1974-12-12 DEVICE FOR CONTROL OF VISIBILITY

Country Status (1)

Country Link
SE (1) SE391871B (en)

Also Published As

Publication number Publication date
SE391871B (en) 1977-03-07

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