DE2148417A1 - Ophthalmometer - Google Patents
OphthalmometerInfo
- Publication number
- DE2148417A1 DE2148417A1 DE19712148417 DE2148417A DE2148417A1 DE 2148417 A1 DE2148417 A1 DE 2148417A1 DE 19712148417 DE19712148417 DE 19712148417 DE 2148417 A DE2148417 A DE 2148417A DE 2148417 A1 DE2148417 A1 DE 2148417A1
- Authority
- DE
- Germany
- Prior art keywords
- optics
- mirror images
- optical system
- mark
- optical
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 75
- 238000012876 topography Methods 0.000 claims description 8
- 239000003550 marker Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 210000004087 cornea Anatomy 0.000 description 41
- 238000005259 measurement Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 210000002105 tongue Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
- 230000004393 visual impairment Effects 0.000 description 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 |
|---|---|---|---|
| US7617170A | 1970-09-28 | 1970-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2148417A1 true DE2148417A1 (de) | 1972-03-30 |
Family
ID=22130382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712148417 Pending DE2148417A1 (de) | 1970-09-28 | 1971-09-28 | Ophthalmometer |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3640610A (enExample) |
| JP (1) | JPS5227954B1 (enExample) |
| CA (1) | CA955440A (enExample) |
| DE (1) | DE2148417A1 (enExample) |
| FR (1) | FR2108615A5 (enExample) |
| GB (1) | GB1366915A (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3861808A (en) * | 1972-12-04 | 1975-01-21 | Edmund R Halsey | Instrument for measuring curved surfaces |
| US3850527A (en) * | 1973-02-12 | 1974-11-26 | American Optical Corp | Apparatus and method for detecting and viewing transparent objects in the vitreous humor |
| US3871772A (en) * | 1973-04-23 | 1975-03-18 | Tropel | Eye examining instrument aligning means and method therefor |
| DE2716615C3 (de) * | 1977-04-15 | 1980-06-12 | Fa. Carl Zeiss, 7920 Heidenheim | Handaugenspiegel |
| USD271901S (en) | 1980-11-04 | 1983-12-20 | Essilor International (Compagnie Generale D'optique) | Optical measuring instrument |
| GB8626188D0 (en) * | 1986-11-03 | 1986-12-03 | Ahmad R | Medical apparatus |
| JPH0753150B2 (ja) * | 1986-07-04 | 1995-06-07 | 株式会社トプコン | 角膜形状測定装置 |
| US5462739A (en) * | 1991-11-21 | 1995-10-31 | Yeda Research And Development Co., Ltd. | Microdelivery device and method for enhanced drug administration to the eye |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1523528A (en) * | 1923-05-22 | 1925-01-20 | Zeiss Carl Fa | Instrument for measuring the curvatures of the cornea |
| US1833482A (en) * | 1925-01-02 | 1931-11-24 | Benjamin E Brierton | Ophthalmological method and apparatus |
| US2110330A (en) * | 1935-11-18 | 1938-03-08 | American Optical Corp | Ophthalmic instrument |
| US3542458A (en) * | 1968-03-05 | 1970-11-24 | David Volk | Method for measurement of the shape and curvature of a cornea |
-
1970
- 1970-09-28 US US76171A patent/US3640610A/en not_active Expired - Lifetime
-
1971
- 1971-09-15 GB GB4309671A patent/GB1366915A/en not_active Expired
- 1971-09-17 CA CA123,108A patent/CA955440A/en not_active Expired
- 1971-09-27 FR FR7134720A patent/FR2108615A5/fr not_active Expired
- 1971-09-28 JP JP46075743A patent/JPS5227954B1/ja active Pending
- 1971-09-28 DE DE19712148417 patent/DE2148417A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3640610A (en) | 1972-02-08 |
| JPS5227954B1 (enExample) | 1977-07-23 |
| CA955440A (en) | 1974-10-01 |
| GB1366915A (en) | 1974-09-18 |
| FR2108615A5 (enExample) | 1972-05-19 |
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