CH587479A5 - - Google Patents
Info
- Publication number
- CH587479A5 CH587479A5 CH1107474A CH1107474A CH587479A5 CH 587479 A5 CH587479 A5 CH 587479A5 CH 1107474 A CH1107474 A CH 1107474A CH 1107474 A CH1107474 A CH 1107474A CH 587479 A5 CH587479 A5 CH 587479A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/0257—Testing optical properties by measuring geometrical properties or aberrations by analyzing the image formed by the object to be tested
- G01M11/0264—Testing optical properties by measuring geometrical properties or aberrations by analyzing the image formed by the object to be tested by using targets or reference patterns
-
- 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
- A61B3/036—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters for testing astigmatism
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Ophthalmology & Optometry (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Eye Examination Apparatus (AREA)
- Eyeglasses (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00336324A US3841760A (en) | 1973-02-27 | 1973-02-27 | Zonal focus method for determining the amount of astigmatic correction for an optical system |
Publications (1)
Publication Number | Publication Date |
---|---|
CH587479A5 true CH587479A5 (xx) | 1977-04-29 |
Family
ID=23315574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1107474A CH587479A5 (xx) | 1973-02-27 | 1974-08-14 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3841760A (xx) |
CH (1) | CH587479A5 (xx) |
DE (1) | DE2438466A1 (xx) |
FR (1) | FR2283433A1 (xx) |
GB (1) | GB1461118A (xx) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3880502A (en) * | 1972-06-15 | 1975-04-29 | Humphrey Instruments Inc | Ophthalmological apparatus and process having independent astigmatic and spherical inputs |
US3947097A (en) * | 1974-03-18 | 1976-03-30 | Humphrey Instruments, Inc. | Process and apparatus for astigmatic and spherical subjective testing of the eye |
US4070115A (en) * | 1976-03-26 | 1978-01-24 | Humphrey Instruments, Inc. | Lens meter |
DE2713330A1 (de) * | 1976-03-26 | 1977-10-06 | Humphrey Instruments Inc | Verfahren und vorrichtung zur sehkraftbestimmung |
US4840479A (en) * | 1984-11-09 | 1989-06-20 | Sims Clinton N | Crossed cylinder lenses refractor with three-lens variable crossed cylinder assembly and method of use |
US5285224A (en) * | 1984-11-09 | 1994-02-08 | Sims Clinton N | Methods and apparatus for determining refractive error |
US5120124A (en) * | 1984-11-09 | 1992-06-09 | Sims Clinton N | Devices for determining the crossed cylinder powers and axes for multiple lens sets |
US4943162A (en) * | 1984-11-09 | 1990-07-24 | Sims Clinton N | Astigmatic self-refractor and method of use |
US5500698A (en) * | 1984-11-09 | 1996-03-19 | Sims; Clinton N. | Optical instruments such as retinoscopes which may incorporate multiple lens assemblies and methods of calibrating such instruments |
US4820040A (en) * | 1984-11-09 | 1989-04-11 | Sims Clinton N | Crossed cylinder lenses refractor and method of use |
US5430508A (en) * | 1984-11-09 | 1995-07-04 | Sims; Clinton N. | Refraction techniques using modified streak retinoscope assembly |
IL80661A (en) * | 1985-11-29 | 1991-07-18 | Jaquet Orthopedie | Device for positioning and securing a part having circular regions |
US4799210A (en) * | 1986-11-05 | 1989-01-17 | Unisys Corporation | Fiber optic read/write head for an optical disk memory system |
US6047082A (en) * | 1997-11-14 | 2000-04-04 | Wesley Jessen Corporation | Automatic lens inspection system |
US6577387B2 (en) | 2000-12-29 | 2003-06-10 | Johnson & Johnson Vision Care, Inc. | Inspection of ophthalmic lenses using absorption |
MY161660A (en) * | 2005-05-04 | 2017-04-28 | Novartis Ag | Automated inspection of colored contact lenses |
JP2009041968A (ja) * | 2007-08-07 | 2009-02-26 | Fujinon Corp | 復元処理を前提としたレンズの評価方法および装置、評価用補正光学系 |
US8226238B2 (en) * | 2010-02-10 | 2012-07-24 | Carl Zeiss Vision Inc. | Method and apparatus for subjective refraction |
US10072971B2 (en) * | 2010-04-16 | 2018-09-11 | Metal Improvement Company, Llc | Flexible beam delivery system for high power laser systems |
JP5814345B2 (ja) * | 2010-04-22 | 2015-11-17 | マサチューセッツ インスティテュート オブ テクノロジー | 屈折評価のための接眼ツール |
US9454007B1 (en) | 2012-05-07 | 2016-09-27 | Lockheed Martin Corporation | Free-space lens design and lenses therefrom |
ES2715510A1 (es) * | 2017-12-04 | 2019-06-04 | Univ Valencia | Metodo, sistema y programa de ordenador para medir la potencia dioptrica de vertice posterior de una lente astigmatica |
JP7506965B2 (ja) * | 2018-12-28 | 2024-06-27 | ホヤ レンズ タイランド リミテッド | 屈折特性測定装置、測定治具、及び屈折特性測定方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1542112A (en) * | 1922-04-10 | 1925-06-16 | American Optical Corp | Lens-testing instrument |
US1608725A (en) * | 1922-10-16 | 1926-11-30 | American Optical Corp | Lens-testing instrument |
US3664631A (en) * | 1970-02-25 | 1972-05-23 | David Guyton | Cylindrical lens systems for simultaneous bimeridional measurement in a lens measuring instrument |
US3785723A (en) * | 1973-02-27 | 1974-01-15 | D Guyton | Method and apparatus for locating a principal meridian of an astigmatic optical system |
-
1973
- 1973-02-27 US US00336324A patent/US3841760A/en not_active Expired - Lifetime
-
1974
- 1974-08-09 DE DE2438466A patent/DE2438466A1/de not_active Withdrawn
- 1974-08-12 GB GB3551474A patent/GB1461118A/en not_active Expired
- 1974-08-14 CH CH1107474A patent/CH587479A5/xx not_active IP Right Cessation
- 1974-08-27 FR FR7429212A patent/FR2283433A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2283433B1 (xx) | 1980-05-23 |
FR2283433A1 (fr) | 1976-03-26 |
US3841760A (en) | 1974-10-15 |
DE2438466A1 (de) | 1976-02-19 |
GB1461118A (en) | 1977-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |