DE3162287D1 - Objective refractometer provided with a microcomputer - Google Patents
Objective refractometer provided with a microcomputerInfo
- Publication number
- DE3162287D1 DE3162287D1 DE8181401107T DE3162287T DE3162287D1 DE 3162287 D1 DE3162287 D1 DE 3162287D1 DE 8181401107 T DE8181401107 T DE 8181401107T DE 3162287 T DE3162287 T DE 3162287T DE 3162287 D1 DE3162287 D1 DE 3162287D1
- Authority
- DE
- Germany
- Prior art keywords
- microcomputer
- objective refractometer
- refractometer provided
- objective
- refractometer
- 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
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
-
- 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
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
- A61B3/1035—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes for measuring astigmatism
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)
- Eye Examination Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8016001A FR2486795A1 (fr) | 1980-07-21 | 1980-07-21 | Refractometre objectif assiste par microprocesseur |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3162287D1 true DE3162287D1 (en) | 1984-03-22 |
Family
ID=9244331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8181401107T Expired DE3162287D1 (en) | 1980-07-21 | 1981-07-09 | Objective refractometer provided with a microcomputer |
Country Status (5)
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5937A (ja) * | 1982-06-25 | 1984-01-05 | ホ−ヤ株式会社 | 自覚式電動検眼機 |
FR2546055B1 (fr) * | 1983-05-19 | 1986-04-11 | Essilor Int | Procede et dispositif de refractometrie pour mesurer le degre d'ametropie et notamment le degre d'astigmatisme d'un oeil |
FR2555039B1 (fr) * | 1983-11-21 | 1986-04-04 | Centre Nat Rech Scient | Ophtalmoscope catadioptrique a balayage |
JPH01166741A (ja) * | 1987-12-24 | 1989-06-30 | Hoya Corp | 眼屈折力測定装置 |
EP0374306A1 (en) * | 1988-12-23 | 1990-06-27 | Herman Van Gelderen | Apparatus and method for determining contact lenses |
US5585873A (en) * | 1991-10-11 | 1996-12-17 | Alcon Laboratories, Inc. | Automated hand-held keratometer |
US5331394A (en) * | 1992-04-10 | 1994-07-19 | Metaphase Corporation | Automated lensometer |
US5387952A (en) * | 1994-01-31 | 1995-02-07 | Byer; Harold | Feedback apparatus for sensing head position |
US5617157A (en) * | 1994-06-15 | 1997-04-01 | Metaphase Ophthalmic Corp. | Computer controlled subjective refractor |
DE19546991A1 (de) * | 1995-12-15 | 1997-06-19 | Hennig Juergen | Verfahren und Vorrichtung zur Brillenbestimmung unter Anwendung eines Phoropters |
GB2332062B (en) * | 1999-02-18 | 2000-02-09 | Jitesh Taank | The oculus full eye trial frame digital (series 1) display trial frame |
JP2001095760A (ja) * | 1999-09-28 | 2001-04-10 | Topcon Corp | 眼の光学特性測定装置 |
DE10300322A1 (de) * | 2003-01-09 | 2004-07-29 | Oculus Optikgeräte GmbH | Augenrefraktometer und Verfahren zum Betrieb eines Augenrefraktometers |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832066A (en) * | 1972-10-27 | 1974-08-27 | Acuity Syst Inc | Apparatus and method for analyzing sphero-cylindrical optical systems |
FR2228461B1 (US20020095090A1-20020718-M00002.png) * | 1973-05-09 | 1978-01-13 | Tropel | |
US3874774A (en) * | 1973-06-20 | 1975-04-01 | Humphrey Research Associates I | Eye test apparatus |
US3927933A (en) * | 1973-08-06 | 1975-12-23 | Humphrey Instruments Inc | Apparatus for opthalmological prescription readout |
US3969020A (en) * | 1973-12-28 | 1976-07-13 | Giles C. Clegg, Jr. | Automatic refraction apparatus and method |
DE2654608C3 (de) * | 1976-12-02 | 1979-06-21 | Fa. Carl Zeiss, 7920 Heidenheim | Refraktometer zur selbsttätigen objektiven Ermittlung des Refraktionszustandes eines Auges |
US4190332A (en) * | 1977-10-14 | 1980-02-26 | Acuity Systems, Incorporated | Method and apparatus for controlling visual refractive state of the eye |
US4199816A (en) * | 1978-06-28 | 1980-04-22 | Humphrey Instruments, Inc. | Optical calibration apparatus and procedure |
US4181407A (en) * | 1978-07-03 | 1980-01-01 | Razran Gilbert B | Apparatus for automatically testing vision by phase measurements |
JPS5586437A (en) * | 1978-12-22 | 1980-06-30 | Nippon Chemical Ind | Objective eye refractive power measuring device |
-
1980
- 1980-07-21 FR FR8016001A patent/FR2486795A1/fr active Granted
-
1981
- 1981-07-06 US US06/280,216 patent/US4444476A/en not_active Expired - Fee Related
- 1981-07-09 DE DE8181401107T patent/DE3162287D1/de not_active Expired
- 1981-07-09 EP EP81401107A patent/EP0044770B1/fr not_active Expired
- 1981-07-21 JP JP56114338A patent/JPS5745839A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US4444476A (en) | 1984-04-24 |
FR2486795A1 (fr) | 1982-01-22 |
FR2486795B1 (US20020095090A1-20020718-M00002.png) | 1984-09-21 |
EP0044770B1 (fr) | 1984-02-15 |
JPS5745839A (en) | 1982-03-16 |
EP0044770A1 (fr) | 1982-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |