DE69401121D1 - Vorrichtung zum bestimmen der kontrast-empfindlichkeit - Google Patents

Vorrichtung zum bestimmen der kontrast-empfindlichkeit

Info

Publication number: DE69401121D1
Authority: DE; Germany
Prior art keywords: contrast sensitivity; determining contrast; determining; sensitivity; contrast
Prior art date: 1993-07-13
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 - Fee Related

Application number

DE69401121T

Other languages

English (en)

Other versions

DE69401121T2 (de

Inventor

David Luce

Bernard Grolman

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Leica Microsystems Inc

Original Assignee

Leica Inc

Priority date (The priority date 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 date listed.)

1993-07-13

Filing date

1994-06-13

Publication date

1997-01-23

1994-06-13 Application filed by Leica Inc filed Critical Leica Inc

1997-01-23 Application granted granted Critical

1997-01-23 Publication of DE69401121D1 publication Critical patent/DE69401121D1/de

1997-06-26 Publication of DE69401121T2 publication Critical patent/DE69401121T2/de

2014-06-14 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- A61B3/022—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing contrast sensitivity
- 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
- 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
- A61B3/06—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing light sensitivity, e.g. adaptation; for testing colour vision
- 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
- A61B3/09—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing accommodation

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)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Analysing Materials By The Use Of Radiation (AREA)

DE69401121T 1993-07-13 1994-06-13 Vorrichtung zum bestimmen der kontrast-empfindlichkeit Expired - Fee Related DE69401121T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US08/090,541 US5381196A (en)	1993-07-13	1993-07-13	Contrast sensitivity tester
PCT/US1994/006623 WO1995002355A1 (en)	1993-07-13	1994-06-13	Contrast sensitivity tester

Publications (2)

Publication Number	Publication Date
DE69401121D1 true DE69401121D1 (de)	1997-01-23
DE69401121T2 DE69401121T2 (de)	1997-06-26

Family

ID=22223236

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69401121T Expired - Fee Related DE69401121T2 (de)	1993-07-13	1994-06-13	Vorrichtung zum bestimmen der kontrast-empfindlichkeit

Country Status (7)

Country	Link
US (1)	US5381196A (de)
EP (1)	EP0673221B1 (de)
JP (1)	JP2729534B2 (de)
CA (1)	CA2131920C (de)
DE (1)	DE69401121T2 (de)
ES (1)	ES2095774T3 (de)
WO (1)	WO1995002355A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6099126A (en) *	1999-11-04	2000-08-08	Teskey; Susan	Sunlight sensitivity tester
US6692128B2 (en) *	2002-05-01	2004-02-17	Reichert, Inc.	Ophthalmic refractor having gear phasing hub
JPWO2004035270A1 (ja) *	2002-10-21	2006-02-09	健純土肥	位置決めユニット及びこれを用いた位置決めアーム
JP4280081B2 (ja) *	2003-01-31	2009-06-17	株式会社ニデック	検眼装置
JP2009207672A (ja) *	2008-03-04	2009-09-17	Sammy Corp	画像演出装置、及び遊技機
US7942525B2 (en) *	2009-07-09	2011-05-17	Nike, Inc.	Contrast sensitivity testing and/or training using circular contrast zones
CN107205635A (zh) *	2014-05-02	2017-09-26	俄亥俄州国家创新基金会	鉴别观察者的眼疾病的方法和执行该方法的装置
GB201602068D0 (en)	2016-02-05	2016-03-23	Univ Bristol	Measuring sensitivity to polarized light
US10362934B2 (en) *	2016-03-23	2019-07-30	Johnson & Johnson Vision Care, Inc.	System and method for the rapid measurement of the visual contrast sensitivity function

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2206303A (en) *	1936-08-19	1940-07-02	American Optical Corp	Eye testing device
US2280297A (en) *	1936-08-19	1942-04-21	American Optical Corp	Method of testing eyes
US2933977A (en) *	1956-05-07	1960-04-26	Peter H Landis	Astigmometers
US2976764A (en) *	1958-12-04	1961-03-28	American Optical Corp	Polarimeters
US3498699A (en) *	1967-06-13	1970-03-03	American Optical Corp	Refractor
US4155632A (en) *	1976-02-26	1979-05-22	Acadia Associates	Method and apparatus for testing vision
US5216458A (en) *	1991-05-16	1993-06-01	Stereo Optical Company, Inc.	Apparatus and method for testing visual accuity and contrast sensitivity

1993
- 1993-07-13 US US08/090,541 patent/US5381196A/en not_active Expired - Fee Related
1994
- 1994-06-13 DE DE69401121T patent/DE69401121T2/de not_active Expired - Fee Related
- 1994-06-13 EP EP94919449A patent/EP0673221B1/de not_active Expired - Lifetime
- 1994-06-13 JP JP7504540A patent/JP2729534B2/ja not_active Expired - Fee Related
- 1994-06-13 ES ES94919449T patent/ES2095774T3/es not_active Expired - Lifetime
- 1994-06-13 CA CA002131920A patent/CA2131920C/en not_active Expired - Fee Related
- 1994-06-13 WO PCT/US1994/006623 patent/WO1995002355A1/en active IP Right Grant

Also Published As

Publication number	Publication date
EP0673221B1 (de)	1996-12-11
DE69401121T2 (de)	1997-06-26
EP0673221A1 (de)	1995-09-27
WO1995002355A1 (en)	1995-01-26
ES2095774T3 (es)	1997-02-16
US5381196A (en)	1995-01-10
JP2729534B2 (ja)	1998-03-18
JPH08500049A (ja)	1996-01-09
EP0673221A4 (de)	1996-01-10
CA2131920C (en)	1996-12-10
CA2131920A1 (en)	1995-01-14

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Legal Events

Date	Code	Title	Description
1998-01-15	8364	No opposition during term of opposition
2004-04-15	8339	Ceased/non-payment of the annual fee