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ES256203A1 - Perfeccionamientos en aparatos en particular campimetros, apra llevar una pantalla iluminada de forma uniforme - Google Patents

Perfeccionamientos en aparatos en particular campimetros, apra llevar una pantalla iluminada de forma uniforme

Info

Publication number
ES256203A1
ES256203A1 ES0256203A ES256203A ES256203A1 ES 256203 A1 ES256203 A1 ES 256203A1 ES 0256203 A ES0256203 A ES 0256203A ES 256203 A ES256203 A ES 256203A ES 256203 A1 ES256203 A1 ES 256203A1
Authority
ES
Spain
Prior art keywords
campimeters
screen
uniform manner
screen illuminated
illuminated
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
ES0256203A
Other languages
English (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.)
JAYLE GA TAN
Original Assignee
JAYLE GA TAN
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 JAYLE GA TAN filed Critical JAYLE GA TAN
Publication of ES256203A1 publication Critical patent/ES256203A1/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
    • A61B3/024—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for determining the visual field, e.g. perimeter types

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Eye Examination Apparatus (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Prostheses (AREA)

Abstract

Perfeccionamientos en aparatos en particular campímetros para llevar una pantalla iluminada de forma uniforme, caracterizados porque su pantalla (1) está iluminada por lo menos por una campana (2) capaz de emitir en dirección de la referida pantalla, un haz divergente de luz difusa (F).
ES0256203A 1959-03-07 1960-03-02 Perfeccionamientos en aparatos en particular campimetros, apra llevar una pantalla iluminada de forma uniforme Expired ES256203A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR788713A FR1229799A (fr) 1959-03-07 1959-03-07 Perfectionnements apportés aux appareils, notamment aux campimètres, devant comporter un écran éclairé de façon uniforme

Publications (1)

Publication Number Publication Date
ES256203A1 true ES256203A1 (es) 1960-07-01

Family

ID=8712174

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0256203A Expired ES256203A1 (es) 1959-03-07 1960-03-02 Perfeccionamientos en aparatos en particular campimetros, apra llevar una pantalla iluminada de forma uniforme

Country Status (9)

Country Link
US (1) US3138334A (es)
BE (1) BE587944A (es)
CH (1) CH365894A (es)
DE (1) DE1890206U (es)
ES (1) ES256203A1 (es)
FR (1) FR1229799A (es)
GB (1) GB918656A (es)
LU (1) LU38304A1 (es)
NL (1) NL249119A (es)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1255755A (en) * 1917-07-25 1918-02-05 Emil G Johanson Lens-screen.
GB309512A (en) * 1927-10-12 1929-04-12 Alexander James Irving Improvements in anti-dazzle devices for use with the lamps of road vehicles
US2001378A (en) * 1933-11-09 1935-05-14 James E Cornwall Automobile headlight
US2327818A (en) * 1941-12-03 1943-08-24 Eastman Kodak Co Illuminating means for enlargers
US2321636A (en) * 1942-02-05 1943-06-15 Todd John Philip Black-out lamp
US2629813A (en) * 1948-02-04 1953-02-24 David M Murphy Adjustable lamp carrier
US2538681A (en) * 1949-01-24 1951-01-16 Spectrolite Combined incandescent and circular fluorescent lighting unit

Also Published As

Publication number Publication date
US3138334A (en) 1964-06-23
GB918656A (en) 1963-02-13
DE1890206U (de) 1964-04-02
CH365894A (fr) 1962-11-30
LU38304A1 (es)
NL249119A (es)
BE587944A (fr) 1960-08-23
FR1229799A (fr) 1960-09-09

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