GB1147461A - Ophthalmoscope - Google Patents

Ophthalmoscope

Info

Publication number
GB1147461A
GB1147461A GB1973966A GB1973966A GB1147461A GB 1147461 A GB1147461 A GB 1147461A GB 1973966 A GB1973966 A GB 1973966A GB 1973966 A GB1973966 A GB 1973966A GB 1147461 A GB1147461 A GB 1147461A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
aperture
blade
aperture defined
ophthalmoscope
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
GB1973966A
Inventor
Rudolf Rodenstock
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
Publication of GB1147461A publication Critical patent/GB1147461A/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
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes

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)
  • Endoscopes (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

1,147,461. Opthalmoscopes. R. RODENSTOCK. May 4, 1966 [May 4, 1965], No.19739/66. Addition to 1,012,838. Heading G2J. The opthalmoscope of the parent Specification is modified in that the aperture of an adjustable iris diaphragm 2 located at the position of the intermediate image of the light source is cut down by a straight edged blade 3 to such an extent that the aperture defined by the diaphragm 2 and the blade 3 is a complete circle only when the diaphragm is almost closed. When the diaphragm is fully open the aperture defined is slightly more than a semicircle.
GB1973966A 1965-05-04 1966-05-04 Ophthalmoscope Expired GB1147461A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO10834A DE1226330B (en) 1965-05-04 1965-05-04 Lighting device for ophthalmoscope

Publications (1)

Publication Number Publication Date
GB1147461A true GB1147461A (en) 1969-04-02

Family

ID=7352125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1973966A Expired GB1147461A (en) 1965-05-04 1966-05-04 Ophthalmoscope

Country Status (2)

Country Link
DE (1) DE1226330B (en)
GB (1) GB1147461A (en)

Also Published As

Publication number Publication date
DE1226330B (en) 1966-10-06

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