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 lampInfo
- 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
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.
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)
| 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 |
-
1928
- 1928-04-04 GB GB1010528A patent/GB297652A/en not_active Expired
Cited By (5)
| 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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