GB297652A - An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp - Google Patents

An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp

Info

Publication number
GB297652A
GB297652A GB1010528A GB1010528A GB297652A GB 297652 A GB297652 A GB 297652A GB 1010528 A GB1010528 A GB 1010528A GB 1010528 A GB1010528 A GB 1010528A GB 297652 A GB297652 A GB 297652A
Authority
GB
United Kingdom
Prior art keywords
slit
retinoscope
ophthalmoscope
monochromatic
concave
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
GB1010528A
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
Priority to GB1010528A priority Critical patent/GB297652A/en
Publication of GB297652A publication Critical patent/GB297652A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • 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
    • A61B3/1208—Multiple lens hand-held instruments

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

297,652. Wilson, A. April 4, 1928. Ophthalmoscopes. -An instrument which can be used as an ophthalmoscope, a retinoscope or a slit lamp, comprising a line source of illumination A, a conderser B, focusing lenses F, G, an oblique mirror H and a battery of inspection lenses K, is fitted with a platform b<@> situated in front of the condenser B for carrying a movable slit D and colour filter E. Both the slit D and the colour filter E are mounted on spring- controlled pivoted levers, so that either may be moved into the light beam and held there by springs d<5>, which latter may be released by knobs d<8>. An iris diaphragm is carried above this platform b<9> to adiust the beam to the size of the pupil of the eye under examination. The oblique mirror H is mounted in a rotatable head so that the axis of the slit may be changed to any desired meridian and is provided with a sighing aperture and an eyepiece .T. The mirror H is also slidab'e transversely in its mount, which is made cubical or otherwise, and of two portions hinged together so that the holder is divided diagonally. The lamp A is illuminated by current from mains through a rheostat or from cells a<1> in the base of the instrument.
GB1010528A 1928-04-04 1928-04-04 An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp Expired GB297652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1010528A GB297652A (en) 1928-04-04 1928-04-04 An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1010528A GB297652A (en) 1928-04-04 1928-04-04 An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp

Publications (1)

Publication Number Publication Date
GB297652A true GB297652A (en) 1928-09-27

Family

ID=9961579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1010528A Expired GB297652A (en) 1928-04-04 1928-04-04 An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp

Country Status (1)

Country Link
GB (1) GB297652A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194174B (en) * 1963-06-05 1965-06-03 Rodenstock Optik G Lighting device for ophthalmoscope
DE2703723A1 (en) * 1977-01-29 1978-08-03 Zeiss Carl Fa OPTICAL SYSTEM FOR ILLUMINATION OF THE EYE BACKGROUND
GB2359375A (en) * 2000-02-15 2001-08-22 Ian Marshall Ophthalmoscope optical system
GB2505546A (en) * 2012-09-03 2014-03-05 Zumax Medical Co Ltd Retinoscope with condensing lens column

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194174B (en) * 1963-06-05 1965-06-03 Rodenstock Optik G Lighting device for ophthalmoscope
DE2703723A1 (en) * 1977-01-29 1978-08-03 Zeiss Carl Fa OPTICAL SYSTEM FOR ILLUMINATION OF THE EYE BACKGROUND
GB2359375A (en) * 2000-02-15 2001-08-22 Ian Marshall Ophthalmoscope optical system
GB2359375B (en) * 2000-02-15 2002-05-22 Ian Marshall Ophthalmoscope optical system
GB2505546A (en) * 2012-09-03 2014-03-05 Zumax Medical Co Ltd Retinoscope with condensing lens column

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