DE2951897C2 - - Google Patents

Info

Publication number
DE2951897C2
DE2951897C2 DE2951897A DE2951897A DE2951897C2 DE 2951897 C2 DE2951897 C2 DE 2951897C2 DE 2951897 A DE2951897 A DE 2951897A DE 2951897 A DE2951897 A DE 2951897A DE 2951897 C2 DE2951897 C2 DE 2951897C2
Authority
DE
Germany
Prior art keywords
eye
examined
light receiving
light
beam splitter
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 - Lifetime
Application number
DE2951897A
Other languages
German (de)
English (en)
Other versions
DE2951897A1 (de
Inventor
Masao Yokohama Kanagawa Jp Nohda
Izumi Kawasaki Kanagawa Jp Umemura
Toshiyuki Yokohama Kanagawa Jp Arai
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.)
Nikon Corp
Original Assignee
Nikon Corp
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.)
Filing date
Publication date
Application filed by Nikon Corp filed Critical Nikon Corp
Publication of DE2951897A1 publication Critical patent/DE2951897A1/de
Application granted granted Critical
Publication of DE2951897C2 publication Critical patent/DE2951897C2/de
Granted legal-status Critical Current

Links

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
    • A61B3/0091—Fixation targets for viewing direction
    • 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

  • 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)
DE19792951897 1978-12-22 1979-12-21 Augen-refraktometer Granted DE2951897A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15884678A JPS5586437A (en) 1978-12-22 1978-12-22 Objective eye refractive power measuring device

Publications (2)

Publication Number Publication Date
DE2951897A1 DE2951897A1 (de) 1980-07-10
DE2951897C2 true DE2951897C2 (en, 2012) 1991-04-18

Family

ID=15680677

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792951897 Granted DE2951897A1 (de) 1978-12-22 1979-12-21 Augen-refraktometer

Country Status (3)

Country Link
US (1) US4390255A (en, 2012)
JP (1) JPS5586437A (en, 2012)
DE (1) DE2951897A1 (en, 2012)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486795A1 (fr) * 1980-07-21 1982-01-22 France Etat Refractometre objectif assiste par microprocesseur
DE3204876C2 (de) * 1982-02-12 1986-10-16 Helmut Dr.rer.nat. 8000 München Krueger Vorrichtung zur Bestimmung des Refraktionszustandes des menschlichen Auges
JPS5927237A (ja) * 1982-08-06 1984-02-13 Nippon Kogaku Kk <Nikon> 光学系の検査装置
FR2546055B1 (fr) * 1983-05-19 1986-04-11 Essilor Int Procede et dispositif de refractometrie pour mesurer le degre d'ametropie et notamment le degre d'astigmatisme d'un oeil
US4679917A (en) * 1985-04-24 1987-07-14 The United States Of America As Represented By The Secretary Of The Air Force Device for measuring intraocular light scatter
JPS61280543A (ja) * 1985-06-05 1986-12-11 San Haitetsuku Kk 光学系の屈折力の測定装置
JPS62122629A (ja) * 1985-11-25 1987-06-03 キヤノン株式会社 眼屈折計
DD268392A1 (de) * 1988-01-20 1989-05-31 Zeiss Jena Veb Carl Anordnung und verfahren zur einstellung eines untersuchungsgeraetes sowie fuer untersuchung des auges
US5206672A (en) * 1990-09-05 1993-04-27 Nestle S.A. Surgical optometer
US5585873A (en) * 1991-10-11 1996-12-17 Alcon Laboratories, Inc. Automated hand-held keratometer
DE4210485C2 (de) * 1992-03-31 1994-03-31 Adatomed Pharma & Med Vorrichtung zur Bestimmung der Augenrefraktion und Verwendung hierfür
US5331394A (en) * 1992-04-10 1994-07-19 Metaphase Corporation Automated lensometer
US5684561A (en) * 1992-05-26 1997-11-04 Daphne Eye Technologies Device and method for evaluation of refraction of the eye
JPH06165757A (ja) * 1992-11-30 1994-06-14 Nikon Corp 検影型他覚眼屈折力測定装置
US5555039A (en) * 1993-02-10 1996-09-10 Nikon Corporation Eye measuring apparatus having an automatic fogging producing mechanism and method thereof
US5617157A (en) * 1994-06-15 1997-04-01 Metaphase Ophthalmic Corp. Computer controlled subjective refractor
JPH08196507A (ja) * 1995-01-23 1996-08-06 Nikon Corp 眼科装置
US5694198A (en) * 1995-06-13 1997-12-02 Nikon Corporation Apparatus including waveform rectifying means and method for eye examination
JPH09135811A (ja) * 1995-11-15 1997-05-27 Nikon Corp 眼科装置
DE69729701T2 (de) * 1996-10-03 2005-07-07 Nidek Co., Ltd., Gamagori Vorrichtung zur Messung der Refraktion eines Auges
US6234978B1 (en) 1997-02-12 2001-05-22 Kabushiki Kaisha Topcon Optical characteristic measuring apparatus
JP3599537B2 (ja) * 1997-08-29 2004-12-08 株式会社ニデック 眼屈折力測定装置
US5963300A (en) * 1998-02-17 1999-10-05 Amt Technologies, Corp. Ocular biometer
US20030210378A1 (en) * 2002-01-17 2003-11-13 Riza Nabeel Agha Optoelectronic eye examination system
US7556378B1 (en) 2003-04-10 2009-07-07 Tsontcho Ianchulev Intraoperative estimation of intraocular lens power
EP1639937B1 (en) * 2003-06-30 2010-06-23 Right Mfg Co., Ltd. Eye refractive power measurement device
US20050241653A1 (en) 2004-04-20 2005-11-03 Wavetec Vision Systems, Inc. Integrated surgical microscope and wavefront sensor
JP2008307104A (ja) * 2007-06-12 2008-12-25 Right Manufacturing Co Ltd 眼屈折力測定装置
US8333474B2 (en) 2007-10-19 2012-12-18 Wavetec Vision Systems, Inc. Optical instrument alignment system
US7594729B2 (en) 2007-10-31 2009-09-29 Wf Systems, Llc Wavefront sensor
US8550624B2 (en) 2008-11-06 2013-10-08 Wavetec Vision Systems, Inc. Optical angular measurement system for ophthalmic applications and method for positioning of a toric intraocular lens with increased accuracy
US8876290B2 (en) * 2009-07-06 2014-11-04 Wavetec Vision Systems, Inc. Objective quality metric for ocular wavefront measurements
JP5837489B2 (ja) 2009-07-14 2015-12-24 ウェーブテック・ビジョン・システムズ・インコーポレイテッドＷａｖｅｔｅｃ Ｖｉｓｉｏｎ Ｓｙｓｔｅｍｓ， Ｉｎｃ． 眼科装置
EP2818130B1 (en) * 2009-07-14 2017-09-27 WaveTec Vision Systems, Inc. Determination of the effective lens position of an intraocular lens using aphakic refractive power
US9072462B2 (en) 2012-09-27 2015-07-07 Wavetec Vision Systems, Inc. Geometric optical power measurement device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB430836A (en) * 1934-01-29 1935-06-26 Richard Edmund Reason Improvements in apparatus for the determination of the refraction of the eye
US3136839A (en) * 1958-09-16 1964-06-09 Safir Aran Apparatus for objectively testing an optical system
US3715166A (en) * 1971-02-18 1973-02-06 Bausch & Lomb Apparatus for locating a variable optical focal point
US3892768A (en) * 1971-09-13 1975-07-01 Westinghouse Electric Corp Amide-imide polymers
US3888569A (en) * 1973-05-09 1975-06-10 Tropel Apparatus and method of measuring the refractive error of an eye
DE2616139C3 (de) * 1976-04-13 1979-03-22 Optische Werke G. Rodenstock, 8000 Muenchen Augenuntersuchungsgerät zur Messung der retinalen Sehschärfe
DE2654608C3 (de) * 1976-12-02 1979-06-21 Fa. Carl Zeiss, 7920 Heidenheim Refraktometer zur selbsttätigen objektiven Ermittlung des Refraktionszustandes eines Auges

Also Published As

Publication number Publication date
JPS6148939B2 (en, 2012) 1986-10-27
US4390255A (en) 1983-06-28
DE2951897A1 (de) 1980-07-10
JPS5586437A (en) 1980-06-30

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: NIKON CORP., TOKIO/TOKYO, JP

D2 Grant after examination
8364 No opposition during term of opposition