GB2144235B - Eye-testing machine using laser speckle pattern - Google Patents
Eye-testing machine using laser speckle patternInfo
- Publication number
- GB2144235B GB2144235B GB08417765A GB8417765A GB2144235B GB 2144235 B GB2144235 B GB 2144235B GB 08417765 A GB08417765 A GB 08417765A GB 8417765 A GB8417765 A GB 8417765A GB 2144235 B GB2144235 B GB 2144235B
- Authority
- GB
- United Kingdom
- Prior art keywords
- eye
- testing machine
- speckle pattern
- laser speckle
- laser
- 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
-
- 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
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
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)
- Optical Elements Other Than Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08417765A GB2144235B (en) | 1983-07-12 | 1984-07-12 | Eye-testing machine using laser speckle pattern |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838318866A GB8318866D0 (en) | 1983-07-12 | 1983-07-12 | Speckle resolution surface |
GB08417765A GB2144235B (en) | 1983-07-12 | 1984-07-12 | Eye-testing machine using laser speckle pattern |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8417765D0 GB8417765D0 (en) | 1984-08-15 |
GB2144235A GB2144235A (en) | 1985-02-27 |
GB2144235B true GB2144235B (en) | 1986-07-09 |
Family
ID=26286591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08417765A Expired GB2144235B (en) | 1983-07-12 | 1984-07-12 | Eye-testing machine using laser speckle pattern |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2144235B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9006436D0 (en) * | 1990-03-22 | 1990-05-23 | Cook Paul D | Eye testing machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3572912A (en) * | 1969-10-06 | 1971-03-30 | Bausch & Lomb | Method of and apparatus for testing ametropia by laser refraction |
US3659930A (en) * | 1970-09-28 | 1972-05-02 | Bausch & Lomb | Segmented deflectible screen surface for testing eyes by laser refraction |
US3724933A (en) * | 1971-09-08 | 1973-04-03 | Us Navy | Laser speckle visual tester |
US3792918A (en) * | 1972-11-07 | 1974-02-19 | Massachusetts College Optometr | Laser refractor |
GB2135076A (en) * | 1983-01-04 | 1984-08-22 | Marfar Ltd | Eye testing apparatus |
-
1984
- 1984-07-12 GB GB08417765A patent/GB2144235B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2144235A (en) | 1985-02-27 |
GB8417765D0 (en) | 1984-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950712 |