GB1227016A - - Google Patents
Info
- Publication number
- GB1227016A GB1227016A GB1227016DA GB1227016A GB 1227016 A GB1227016 A GB 1227016A GB 1227016D A GB1227016D A GB 1227016DA GB 1227016 A GB1227016 A GB 1227016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cornea
- lens
- images
- plates
- cylindrical
- 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
- 210000004087 cornea Anatomy 0.000 abstract 5
- 201000009310 astigmatism Diseases 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000005357 flat glass Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- A61B3/107—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
- 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 |
---|---|---|---|
DEO12648A DE1289664B (de) | 1967-07-15 | 1967-07-15 | Ophthalmometer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1227016A true GB1227016A (enrdf_load_stackoverflow) | 1971-03-31 |
Family
ID=7352926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1227016D Expired GB1227016A (enrdf_load_stackoverflow) | 1967-07-15 | 1968-07-12 |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH483828A (enrdf_load_stackoverflow) |
DE (1) | DE1289664B (enrdf_load_stackoverflow) |
FR (1) | FR1582553A (enrdf_load_stackoverflow) |
GB (1) | GB1227016A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS218762B1 (en) * | 1980-06-17 | 1983-02-25 | Otto Wichterle | Method and device for measuring the eye shape |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE814668C (de) * | 1950-03-11 | 1951-09-24 | Rodenstock Optik G | Einrichtung zum Messen oder Ausgleich des Astigmatismus des menschlichen Auges |
DE1076397B (de) * | 1955-08-18 | 1960-02-25 | Zeiss Carl Fa | Netzhautkamera mit Kompensations-Vorrichtung |
-
1967
- 1967-07-15 DE DEO12648A patent/DE1289664B/de active Pending
-
1968
- 1968-07-09 FR FR1582553D patent/FR1582553A/fr not_active Expired
- 1968-07-10 CH CH1024868A patent/CH483828A/de not_active IP Right Cessation
- 1968-07-12 GB GB1227016D patent/GB1227016A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH483828A (de) | 1970-01-15 |
DE1289664B (de) | 1969-02-20 |
FR1582553A (enrdf_load_stackoverflow) | 1969-10-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3751138A (en) | Variable anamorphic lens and method for constructing lens | |
SU515473A3 (ru) | Линза с увеличенной фокусирующей мощностью | |
US3711191A (en) | Aberration corrected ophthalmic progressive power lenses | |
US4043644A (en) | Elastically compensated off-axis mirror | |
US3600098A (en) | Optical alignment method and apparatus | |
US4239342A (en) | Optical focusing system with two ellipsoidal mirrors | |
US4306778A (en) | Eye refractmeters using infrared rays | |
US3903218A (en) | Method for constructing variable anamorphic lens | |
US4412723A (en) | Optical system for correcting the aberrations of a beamsplitter in converging light | |
GB775007A (en) | Improvements in or relating to lenses | |
US2380210A (en) | Telecentric lens system | |
US4015896A (en) | Reflecting-lens objective | |
GB1227016A (enrdf_load_stackoverflow) | ||
US2158507A (en) | Telescope objective | |
GB2042757A (en) | Light deflector comprising zero power lens | |
US2933017A (en) | Anamorphosing lens systems for use in convergent light | |
US1637563A (en) | Binocular microscope | |
US2191027A (en) | Combined view finder and range finder | |
US3572903A (en) | Spherically corrected fresnel lenses | |
US4277150A (en) | Eye refractmeter | |
US52672A (en) | Improvement in lenses | |
US2049222A (en) | Sight-testing apparatus | |
US1145132A (en) | Objective for optical apparatus. | |
JPS584326B2 (ja) | 双眼鏡装置 | |
Bechtold et al. | The effect of pantoscopic tilt on ophthalmic lens performance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |