GB1152973A - Axially Measuring Ophthalmometer - Google Patents
Axially Measuring OphthalmometerInfo
- Publication number
- GB1152973A GB1152973A GB1400067A GB1400067A GB1152973A GB 1152973 A GB1152973 A GB 1152973A GB 1400067 A GB1400067 A GB 1400067A GB 1400067 A GB1400067 A GB 1400067A GB 1152973 A GB1152973 A GB 1152973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- objective
- mirror
- eye
- ophthalmometer
- test mark
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/006—Equipment for precise positioning of tool or work into particular locations not otherwise provided for positioning by bringing a stop into contact with one of two or more stops, fitted on a common carrier
-
- 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
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
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)
- Testing Of Optical Devices Or Fibers (AREA)
- Eye Examination Apparatus (AREA)
Abstract
1,152,973. Ophthalmometers. R. RODENSTOCK. March 28, 1967, No. 14000/67. Addition to 1, 067, 652. Heading G2J. In an ophthalmometer as in the parent Specification, a single test mark 32 having edge markers 33 which define its size and illuminated by a source 2 and condenser 3, is positioned on the viewing axis of the observed eye 1 there being a single collimating objective 5 and half-silvered mirror 51 between the test mark 32 and the eye 1. Rays reflected from the eye 1 are deflected by mirror 51 to the arrangement for producing apparent coincidence of the images of the edge markers, which consists of a mirror 20 reflecting the central part of the beam through an objective 21 to a recombining plate 24 where it meets the remainder of the beam which has passed through the objective 14 having the same focal length as objective 21. Mirror 20 and objective 21 are displaceable perpendicularly to the optical axis of objective 21. For measuring the curvature of a contact lens 42, it is laid on the upper surface of a prism 41 which is slid or rotated into the ray path.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO9248A DE1183711B (en) | 1963-02-20 | 1963-02-20 | Lighting device for ophthalmometer |
FR985844A FR1405002A (en) | 1964-08-12 | 1964-08-21 | Ophthalmometer lighting device |
DE19661547417 DE1547417A1 (en) | 1964-08-12 | 1966-02-19 | Axial measuring ophthalmometer |
FR97284A FR93411E (en) | 1964-08-12 | 1967-03-03 | Lighting device for ophthalmometer. |
CH414167A CH463817A (en) | 1964-08-12 | 1967-03-22 | Ophthalmometer |
GB1400067A GB1152973A (en) | 1964-08-12 | 1967-03-28 | Axially Measuring Ophthalmometer |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1055164A CH432041A (en) | 1964-08-12 | 1964-08-12 | Lighting device for ophthalmometers |
DEO0011459 | 1966-02-19 | ||
FR97284A FR93411E (en) | 1964-08-12 | 1967-03-03 | Lighting device for ophthalmometer. |
GB1400067A GB1152973A (en) | 1964-08-12 | 1967-03-28 | Axially Measuring Ophthalmometer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1152973A true GB1152973A (en) | 1969-05-21 |
Family
ID=27429295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1400067A Expired GB1152973A (en) | 1963-02-20 | 1967-03-28 | Axially Measuring Ophthalmometer |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH463817A (en) |
DE (1) | DE1547417A1 (en) |
FR (1) | FR93411E (en) |
GB (1) | GB1152973A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403057A1 (en) * | 1977-09-17 | 1979-04-13 | Zeiss Carl Fa | OPHTHALMOLOGICAL APPARATUS FOR EXAMINATION AND PHOTOGRAPHY OF THE FUND OF THE EYE |
US9642526B2 (en) | 2011-09-23 | 2017-05-09 | Vossamed Gmbh & Co. Kg | Optical arrangement and method for ascertaining the orientation of an artificial lens |
-
1966
- 1966-02-19 DE DE19661547417 patent/DE1547417A1/en active Pending
-
1967
- 1967-03-03 FR FR97284A patent/FR93411E/en not_active Expired
- 1967-03-22 CH CH414167A patent/CH463817A/en unknown
- 1967-03-28 GB GB1400067A patent/GB1152973A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403057A1 (en) * | 1977-09-17 | 1979-04-13 | Zeiss Carl Fa | OPHTHALMOLOGICAL APPARATUS FOR EXAMINATION AND PHOTOGRAPHY OF THE FUND OF THE EYE |
US9642526B2 (en) | 2011-09-23 | 2017-05-09 | Vossamed Gmbh & Co. Kg | Optical arrangement and method for ascertaining the orientation of an artificial lens |
Also Published As
Publication number | Publication date |
---|---|
CH463817A (en) | 1968-10-15 |
FR93411E (en) | 1969-03-28 |
DE1547417A1 (en) | 1970-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |