GB429636A - Improvements in and relating to ophthalmoscopes - Google Patents

Improvements in and relating to ophthalmoscopes

Info

Publication number
GB429636A
GB429636A GB315434A GB315434A GB429636A GB 429636 A GB429636 A GB 429636A GB 315434 A GB315434 A GB 315434A GB 315434 A GB315434 A GB 315434A GB 429636 A GB429636 A GB 429636A
Authority
GB
United Kingdom
Prior art keywords
light
eyepiece
light beam
ellis
eye
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
GB315434A
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.)
CHARLES EBENEZER WILFRED GLASS
EDWARD HENRY MAXWELL
FREDERICK SCOTT BARRINGTON ELL
Original Assignee
CHARLES EBENEZER WILFRED GLASS
EDWARD HENRY MAXWELL
FREDERICK SCOTT BARRINGTON ELL
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 CHARLES EBENEZER WILFRED GLASS, EDWARD HENRY MAXWELL, FREDERICK SCOTT BARRINGTON ELL filed Critical CHARLES EBENEZER WILFRED GLASS
Priority to GB315434A priority Critical patent/GB429636A/en
Publication of GB429636A publication Critical patent/GB429636A/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
    • A61B3/1208—Multiple lens hand-held instruments

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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

429,636. Ophthalmoscopes. TURVILLE, A. E., 108, Abingdon Street, Northampton ; and ELLIS, F. S. B., GLASSCOCK, C. E. W., and MAXWELL, E. H., (trading as ELLIS OPTICAL CO.), Optical Works, Mayday Road, Thornton Heath, Surrey. Jan. 30, 1934, No. 3154. [Class 97 (i)] In an ophthalmoscope, the observer's eyepiece and the reflector for bending the beam of light from the light source on to the patient's eye are adjustable laterally relatively to the axis of the light beam. In the form shown a frame 1 carrying the inclined holder for an apertured mirror 3 and suitable eyepiece lenses is pivoted together with a rotatable lens carrying disc 17 on a pin 14 carried by the condenser lens tube 4. The latter is secured by a screw 13 on a tubular lamp socket 5 on a cap 6 closing the top of a tubular holder 7 for a battery. The condenser lenses may be adjusted axially to vary the nature of the light beam by a pin 12. A slotted lug 15 on the frame 1 enables the latter to be adjusted to move the mirror 3 and eyepiece to one side or the other of the light beam from the tube 4 so that the patient's eye may be viewed other than along the axis of the reflected beam of light. A clamping screw 16 passes through the slot in the lug 15.
GB315434A 1934-01-30 1934-01-30 Improvements in and relating to ophthalmoscopes Expired GB429636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB315434A GB429636A (en) 1934-01-30 1934-01-30 Improvements in and relating to ophthalmoscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB315434A GB429636A (en) 1934-01-30 1934-01-30 Improvements in and relating to ophthalmoscopes

Publications (1)

Publication Number Publication Date
GB429636A true GB429636A (en) 1935-06-04

Family

ID=9752957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB315434A Expired GB429636A (en) 1934-01-30 1934-01-30 Improvements in and relating to ophthalmoscopes

Country Status (1)

Country Link
GB (1) GB429636A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453887A (en) * 1945-03-09 1948-11-16 Welch Allyn Inc Diagnostic instrument for examining the eye
US2697377A (en) * 1952-11-19 1954-12-21 Swikart George Ophthalmoscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453887A (en) * 1945-03-09 1948-11-16 Welch Allyn Inc Diagnostic instrument for examining the eye
US2697377A (en) * 1952-11-19 1954-12-21 Swikart George Ophthalmoscope

Similar Documents

Publication Publication Date Title
GB429636A (en) Improvements in and relating to ophthalmoscopes
US2355960A (en) Hemoglobinometer
US2485766A (en) Otoscope or the like
US1636463A (en) Otoscope
GB450348A (en) Improvements relating to the projection of light
Barkan A new focal illuminator
CN208243548U (en) A kind of double-colored spot light-source structure
US2739228A (en) Illuminator for photomicrography
US2135743A (en) Optical instrument
US1927111A (en) Retinoscope
GB511555A (en) An improvement in ophthalmoscopes and ophthalmic refractometers
Knoll An infra-red skiascope and other infra-red ophthalmic research instruments
GB297652A (en) An ophthalmoscope, with monochromatic and red free light, with a varying aperture, a luminous plane and concave retinoscope, and a hand slit lamp
US1664544A (en) Sighting device
US1423092A (en) Optical instrument
JPS58142009U (en) Strobe light source for ophthalmological examination equipment
Langdon Electric ophthalmoscopes
US1648013A (en) Retinoscope
GB665531A (en) Improvements in or relating to ophthalmoscopes and like instruments for inspecting the fundus of the eye
US2902899A (en) Ophthalmological hand instrument for the examination of the retina of the eye
SU75760A1 (en) Device for adjusting monochromator mirrors
GB471076A (en) Improved lamp more particularly adapted as a forehead-lamp for doctors' use
SU132419A1 (en) An apparatus for photographing the fundus of the eye and the anterior eye
Law A NEW RADIATION LAMP FOR LOCAL THERAPY
GB515133A (en) Improvements in glare-free ophthalmoscopes