JPH0317486B2 - - Google Patents

Info

Publication number
JPH0317486B2
JPH0317486B2 JP58030461A JP3046183A JPH0317486B2 JP H0317486 B2 JPH0317486 B2 JP H0317486B2 JP 58030461 A JP58030461 A JP 58030461A JP 3046183 A JP3046183 A JP 3046183A JP H0317486 B2 JPH0317486 B2 JP H0317486B2
Authority
JP
Japan
Prior art keywords
signal
circuit
index image
index
output
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
JP58030461A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59156324A (ja
Inventor
Susumu Takahashi
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.)
TOPUKON KK
Original Assignee
TOPUKON KK
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 TOPUKON KK filed Critical TOPUKON KK
Priority to JP58030461A priority Critical patent/JPS59156324A/ja
Priority to US06/582,330 priority patent/US4673264A/en
Publication of JPS59156324A publication Critical patent/JPS59156324A/ja
Publication of JPH0317486B2 publication Critical patent/JPH0317486B2/ja
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
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography
    • A61B3/145—Arrangements specially adapted for eye photography by video means

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Biomedical Technology (AREA)
  • Multimedia (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
JP58030461A 1983-02-25 1983-02-25 眼科器械の信号検出装置 Granted JPS59156324A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58030461A JPS59156324A (ja) 1983-02-25 1983-02-25 眼科器械の信号検出装置
US06/582,330 US4673264A (en) 1983-02-25 1984-02-22 Ophthalmic instrument having focus detecting mark projecting means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58030461A JPS59156324A (ja) 1983-02-25 1983-02-25 眼科器械の信号検出装置

Publications (2)

Publication Number Publication Date
JPS59156324A JPS59156324A (ja) 1984-09-05
JPH0317486B2 true JPH0317486B2 (en]) 1991-03-08

Family

ID=12304524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58030461A Granted JPS59156324A (ja) 1983-02-25 1983-02-25 眼科器械の信号検出装置

Country Status (2)

Country Link
US (1) US4673264A (en])
JP (1) JPS59156324A (en])

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998819A (en) * 1987-11-25 1991-03-12 Taunton Technologies, Inc. Topography measuring apparatus
US4902123A (en) * 1987-11-25 1990-02-20 Taunton Technologies, Inc. Topography measuring apparatus
US5106183A (en) * 1987-11-25 1992-04-21 Taunton Technologies, Inc. Topography measuring apparatus
US5090797A (en) * 1989-06-09 1992-02-25 Lc Technologies Inc. Method and apparatus for mirror control
US5231674A (en) * 1989-06-09 1993-07-27 Lc Technologies, Inc. Eye tracking method and apparatus
US4974010A (en) * 1989-06-09 1990-11-27 Lc Technologies, Inc. Focus control system
JP2968540B2 (ja) * 1989-06-30 1999-10-25 キヤノン株式会社 眼科装置
JPH0357425A (ja) * 1989-07-26 1991-03-12 Kowa Co 眼底検査装置
JP2814396B2 (ja) * 1991-08-30 1998-10-22 株式会社ニコン 眼科光学装置
JPH08564A (ja) * 1994-06-17 1996-01-09 Nikon Corp 眼科装置
EP1152687B1 (en) 1998-11-24 2004-09-01 Welch Allyn, Inc. Eye viewing device for retinal viewing through undilated pupil
US6637882B1 (en) 1998-11-24 2003-10-28 Welch Allyn, Inc. Eye viewing device for retinal viewing through undilated pupil
US7025459B2 (en) * 2000-07-14 2006-04-11 Visual Pathways, Inc. Ocular fundus auto imager
US7360895B2 (en) * 2000-07-14 2008-04-22 Visual Pathways, Inc. Simplified ocular fundus auto imager
US6705726B2 (en) * 2002-02-20 2004-03-16 Nidek Co., Ltd. Instrument for eye examination and method
US20030157464A1 (en) * 2002-02-20 2003-08-21 Cesare Tanassi Instrument for eye examination and method
DE602004020505D1 (de) * 2003-10-28 2009-05-20 Welch Allyn Inc Digitales dokumentier-ophthalmoskop
WO2005065528A1 (en) * 2004-01-02 2005-07-21 Vision Instruments Pty Ltd Devices to facilitate alignment and focussing of a fundus camera
US7645300B2 (en) 2004-02-02 2010-01-12 Visiogen, Inc. Injector for intraocular lens system
JP4537192B2 (ja) * 2004-12-21 2010-09-01 キヤノン株式会社 眼科装置
CN113032957B (zh) * 2021-02-22 2022-03-29 太原理工大学 一种基于数字孪生技术的类复眼光电系统的构建方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293198A (en) * 1977-09-21 1981-10-06 Canon Kabushiki Kaisha Eye refractometer
JPS5452895A (en) * 1977-10-05 1979-04-25 Canon Kk Eyeground camera
JPS56100039A (en) * 1980-01-10 1981-08-11 Canon Kk Eyeground camera
JPS57125732A (en) * 1981-01-29 1982-08-05 Tokyo Optical Apparatus for detecting focus position in ophthalmic machine
JPS57175346A (en) * 1981-04-24 1982-10-28 Tokyo Optical Automatic focusing apparatus of ophthalmic machine

Also Published As

Publication number Publication date
US4673264A (en) 1987-06-16
JPS59156324A (ja) 1984-09-05

Similar Documents

Publication Publication Date Title
JPH0317486B2 (en])
US4257687A (en) Eye examining instrument with photo-detecting system
JPH0265836A (ja) 視線検出装置及び視線検出装置を有するカメラ
JPS6454B2 (en])
US4469416A (en) Automatic focusing means for an ophthalmoscopic instrument
US4801963A (en) Focus detecting system
US3936849A (en) Device for detecting focussing in optical instruments
JPS6223572B2 (en])
JPH0323167B2 (en])
US4591249A (en) Exposure control system for ophthalmic photographing apparatus
US4733062A (en) Focus detecting device
US5963366A (en) Focus detection unit and microscope using the focus detection unit
US4429964A (en) Mirror-reflex camera with electronic rangefinder
JPS649855B2 (en])
US4200786A (en) Electrooptical focusing apparatus for photographic cameras
US5042940A (en) Optical measuring apparatus for examining eye
US4198144A (en) Eye fundus camera
JPS59230534A (ja) 眼科用自動合焦装置
JPH0229326B2 (en])
JPH0121981B2 (en])
JPS6260645B2 (en])
JPH0966031A (ja) 眼底カメラ
JPS6340112A (ja) 自動合焦装置
US5694198A (en) Apparatus including waveform rectifying means and method for eye examination
JPH0315453B2 (en])