DE2707912C2 - - Google Patents
Info
- Publication number
- DE2707912C2 DE2707912C2 DE2707912A DE2707912A DE2707912C2 DE 2707912 C2 DE2707912 C2 DE 2707912C2 DE 2707912 A DE2707912 A DE 2707912A DE 2707912 A DE2707912 A DE 2707912A DE 2707912 C2 DE2707912 C2 DE 2707912C2
- Authority
- DE
- Germany
- Prior art keywords
- light source
- optotypes
- light
- person
- eyepieces
- 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
- 230000004313 glare Effects 0.000 claims description 19
- 230000004438 eyesight Effects 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 230000035945 sensitivity Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 206010047531 Visual acuity reduced Diseases 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 6
- 238000005286 illumination Methods 0.000 description 6
- 230000004304 visual acuity Effects 0.000 description 5
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000004456 color vision Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004424 eye movement Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000001105 regulatory effect 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
- A61B3/02—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
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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 |
|---|---|---|---|
| US05/661,807 US4155632A (en) | 1976-02-26 | 1976-02-26 | Method and apparatus for testing vision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2707912A1 DE2707912A1 (de) | 1977-09-01 |
| DE2707912C2 true DE2707912C2 (OSRAM) | 1989-09-28 |
Family
ID=24655194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772707912 Granted DE2707912A1 (de) | 1976-02-26 | 1977-02-24 | Vorrichtung zum pruefen der sehkraft der augen eines wesens bzw. einer person sowie verwendung dieser vorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4155632A (OSRAM) |
| JP (1) | JPS52115595A (OSRAM) |
| CH (1) | CH618086A5 (OSRAM) |
| DE (1) | DE2707912A1 (OSRAM) |
| FR (1) | FR2342051A1 (OSRAM) |
| GB (1) | GB1572109A (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793469A (en) * | 1995-01-19 | 1998-08-11 | Oculus Optikgeraete Gmbh | Variable distance, variable test object sight testing apparatus |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2946325C2 (de) * | 1979-11-16 | 1982-04-22 | Optische Werke G. Rodenstock, 8000 München | Testfeld für ein Gerät zur Prüfung des Sehvermögens |
| US4399459A (en) * | 1981-10-30 | 1983-08-16 | Nicolet Instrument Corporation | Flexible video synchronization circuit |
| US4415921A (en) * | 1981-10-30 | 1983-11-15 | Nicolet Instrument Corporation | Automatic calibration system for video displays in vision testing |
| JPS60171030A (ja) * | 1984-02-16 | 1985-09-04 | 株式会社ニコン | 視力検査装置 |
| US4618231A (en) * | 1984-02-22 | 1986-10-21 | The United States Of America As Represented By The Secretary Of The Air Force | Accommodative amplitude and speed measuring instrument |
| US4607923A (en) * | 1985-01-10 | 1986-08-26 | Task Harry L | Contrast sensitivity function measurement chart and method |
| US4615594A (en) * | 1985-01-23 | 1986-10-07 | The United States Of America As Represented By The Secretary Of The Air Force | Vision test chart and method using Gaussians |
| US4844607A (en) * | 1985-10-29 | 1989-07-04 | Stereo Optical Company, Inc. | Vision tester with color corrected illuminating system |
| US4740072A (en) * | 1986-01-29 | 1988-04-26 | Titmus Optical, Inc. | Vision testing apparatus |
| US5007730A (en) * | 1986-03-03 | 1991-04-16 | Mcallister John A | Method and apparatus for measuring vision blockage resulting from glare |
| EP0236081A3 (en) * | 1986-03-03 | 1988-03-30 | Tim Cannon Taylor | Method and apparatus for measuring vision blockage resulting from glare |
| JPS62281920A (ja) * | 1986-05-29 | 1987-12-07 | 三星 十久子 | 視機能検査装置 |
| JPH01270846A (ja) * | 1988-04-22 | 1989-10-30 | Topcon Corp | 検眼装置 |
| CA2027781A1 (en) * | 1989-10-20 | 1991-04-21 | Bosko Jovicevic | Method and apparatus for examination of visual acuity |
| FR2679759B1 (fr) * | 1991-08-01 | 1993-12-10 | Opsia | Materiel de test d'acuite visuelle et/ou de sensibilite aux contrastes spatiaux chez l'homme, dispositif et procede de fabrication correspondants. |
| US5483305A (en) * | 1993-01-25 | 1996-01-09 | Canon Kabushiki Kaisha | Eye examining apparatus |
| US5381196A (en) * | 1993-07-13 | 1995-01-10 | Leica Inc. | Contrast sensitivity tester |
| GB2303466A (en) * | 1995-07-20 | 1997-02-19 | Mark Michael Cardiff Dunn | Contrast vision screening |
| IT1285468B1 (it) * | 1996-02-23 | 1998-06-08 | C S O Srl | Proiettore di ottotipi a contrasto variabile |
| US6099126A (en) * | 1999-11-04 | 2000-08-08 | Teskey; Susan | Sunlight sensitivity tester |
| US6652102B2 (en) * | 2000-10-20 | 2003-11-25 | Nidek Co., Ltd | Visual function test apparatus |
| JP3942429B2 (ja) * | 2001-12-28 | 2007-07-11 | 株式会社トプコン | コントラスト感度測定装置 |
| CN100367905C (zh) * | 2001-02-08 | 2008-02-13 | 株式会社拓普康 | 对比度图装置、对比视感度测量装置 |
| JP4570796B2 (ja) * | 2001-02-08 | 2010-10-27 | 株式会社トプコン | コントラストチャート装置 |
| DE10331592A1 (de) * | 2003-07-08 | 2005-02-03 | Carl Zeiss Meditec Ag | Augenuntersuchungsgerät |
| FR2862515B1 (fr) * | 2003-11-21 | 2006-10-27 | Essilor Int | Appareil de diagnostic ophtalmique pour differents types de tests |
| US8328354B2 (en) | 2010-09-20 | 2012-12-11 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Systems and methods for binocular vision diagnosis and treatment |
| JP6471403B2 (ja) * | 2013-01-31 | 2019-02-20 | 株式会社ニデック | 検眼装置 |
| US9833137B1 (en) * | 2014-05-02 | 2017-12-05 | Innova Systems, Inc. | Method and apparatus for administering a low luminance visual dysfunction test |
| US10561312B2 (en) * | 2014-05-02 | 2020-02-18 | Cheryl Nordstrom | Method and apparatus for administering a low luminance visual dysfunction test |
| DE102014119112A1 (de) * | 2014-12-18 | 2016-06-23 | Carl Zeiss Meditec Ag | Verfahren zum Bestimmen eines Sehvermögens eines menschlichen Auges sowie Messsystem |
| GB201602068D0 (en) * | 2016-02-05 | 2016-03-23 | Univ Bristol | Measuring sensitivity to polarized light |
| GB201806829D0 (en) * | 2018-04-26 | 2018-06-13 | Azul Optics Ltd | Testing a subjects vision |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1437809A (en) * | 1922-12-05 | jones | ||
| US1647017A (en) * | 1925-08-01 | 1927-10-25 | William P Reaves | Optical apparatus |
| US2184507A (en) * | 1937-07-02 | 1939-12-26 | Bausch & Lomb | Apparatus for testing vision |
| US2209728A (en) * | 1939-04-01 | 1940-07-30 | Henry R Higley | Glaremeter |
| US2294382A (en) * | 1939-11-04 | 1942-09-01 | Dartmouth College | Binocular eye test |
| US2364795A (en) * | 1942-09-25 | 1944-12-12 | Koehler Richard | Door handle and latch |
| US2422384A (en) * | 1945-04-03 | 1947-06-17 | Keystone View Company | Stereoscopical instrument |
| US2567003A (en) * | 1949-11-17 | 1951-09-04 | Lee R Wottring | Vision plotting device |
| US2674153A (en) * | 1951-05-22 | 1954-04-06 | Keystone View Company | Vision classifier instrument |
| US2799203A (en) * | 1953-03-26 | 1957-07-16 | Armstrong Cork Co | Apparatus for image definition |
| DE1282847B (de) * | 1963-09-18 | 1968-11-14 | Elfriede Aulhorn Geb Andreae D | Geraet zur linearen AEnderung der Leuchtdichte eines auf einem Schirm wiedergegebenen Sehzeichens innerhalb eines beleuchteten Umfeldes |
| DE1963161U (de) * | 1966-07-09 | 1967-06-29 | Rodenstock Optik G | Binokulares sehtestgeraet. |
| US3469904A (en) * | 1966-09-16 | 1969-09-30 | Indiana University Foundation | Night vision performance tester |
| US3684355A (en) * | 1970-07-02 | 1972-08-15 | Biometrics Inc | Glare susceptibility tester |
| CH535039A (de) * | 1971-03-05 | 1973-03-31 | Biviator Sa | Verfahren zur Ermittlung der Flimmerverschmelzungsfrequenz und Gerät zur Durchführung dieses Verfahrens |
| US3910690A (en) * | 1972-02-02 | 1975-10-07 | Wilkinson Sword Ltd | Method and apparatus for determining visual acuity in a human subject |
| DE2321570A1 (de) * | 1973-04-28 | 1974-11-07 | Rodenstock Optik G | Sehtestgeraet vorzugsweise zur ermittlung des daemmerungssehvermoegens |
| US4027954A (en) * | 1975-02-10 | 1977-06-07 | School Health Supply Company | Eye-testing apparatus |
-
1976
- 1976-02-26 US US05/661,807 patent/US4155632A/en not_active Expired - Lifetime
-
1977
- 1977-02-18 GB GB6997/77A patent/GB1572109A/en not_active Expired
- 1977-02-24 DE DE19772707912 patent/DE2707912A1/de active Granted
- 1977-02-25 FR FR7705628A patent/FR2342051A1/fr active Granted
- 1977-02-25 JP JP2012977A patent/JPS52115595A/ja active Granted
- 1977-02-25 CH CH243077A patent/CH618086A5/de not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5793469A (en) * | 1995-01-19 | 1998-08-11 | Oculus Optikgeraete Gmbh | Variable distance, variable test object sight testing apparatus |
| DE19501415C2 (de) * | 1995-01-19 | 1998-10-29 | Oculus Optikgeraete Gmbh | Sehtestgerät |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52115595A (en) | 1977-09-28 |
| FR2342051B1 (OSRAM) | 1982-11-12 |
| FR2342051A1 (fr) | 1977-09-23 |
| DE2707912A1 (de) | 1977-09-01 |
| JPS6119261B2 (OSRAM) | 1986-05-16 |
| CH618086A5 (OSRAM) | 1980-07-15 |
| US4155632A (en) | 1979-05-22 |
| GB1572109A (en) | 1980-07-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |