JPH028731B2 - - Google Patents

Info

Publication number
JPH028731B2
JPH028731B2 JP57149110A JP14911082A JPH028731B2 JP H028731 B2 JPH028731 B2 JP H028731B2 JP 57149110 A JP57149110 A JP 57149110A JP 14911082 A JP14911082 A JP 14911082A JP H028731 B2 JPH028731 B2 JP H028731B2
Authority
JP
Japan
Prior art keywords
signal
cornea
image sensor
light
circuit
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
JP57149110A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5938603A (ja
Inventor
Tsunemi Gonda
Akihiko Kodama
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
Nippon Kogaku 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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Priority to JP57149110A priority Critical patent/JPS5938603A/ja
Publication of JPS5938603A publication Critical patent/JPS5938603A/ja
Publication of JPH028731B2 publication Critical patent/JPH028731B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
    • 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
    • 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
    • A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Eye Examination Apparatus (AREA)
JP57149110A 1982-08-30 1982-08-30 電子式フアコメ−タ Granted JPS5938603A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57149110A JPS5938603A (ja) 1982-08-30 1982-08-30 電子式フアコメ−タ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57149110A JPS5938603A (ja) 1982-08-30 1982-08-30 電子式フアコメ−タ

Publications (2)

Publication Number Publication Date
JPS5938603A JPS5938603A (ja) 1984-03-02
JPH028731B2 true JPH028731B2 (en, 2012) 1990-02-27

Family

ID=15467917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57149110A Granted JPS5938603A (ja) 1982-08-30 1982-08-30 電子式フアコメ−タ

Country Status (1)

Country Link
JP (1) JPS5938603A (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2835371B2 (ja) * 1987-05-30 1998-12-14 キヤノン株式会社 被検眼測定装置
JPH0176610U (en, 2012) * 1987-11-11 1989-05-24
JPH02117521A (ja) * 1988-10-24 1990-05-02 Furukawa Alum Co Ltd 粉粒体用コンテナの積み卸しシステム

Also Published As

Publication number Publication date
JPS5938603A (ja) 1984-03-02

Similar Documents

Publication Publication Date Title
US4168126A (en) Electro-optical measuring system using precision light translator
JPS6454B2 (en, 2012)
US4516840A (en) In-focus detector for a binocular stereomicroscope
US4189218A (en) Apparatus for detecting focal point
JPH02161332A (ja) 曲率半径測定装置及び方法
US4033696A (en) Lens meter
JPH028731B2 (en, 2012)
JPH0554333B2 (en, 2012)
JPS61170433A (ja) 自動曲率測定装置
JPH0417048B2 (en, 2012)
JPS649855B2 (en, 2012)
US4257704A (en) Distance measuring finder
US5218425A (en) Measuring method and apparatus of roof surface
US4758731A (en) Method and arrangement for aligning, examining and/or measuring two-dimensional objects
JP3238453B2 (ja) ダハ面の測定方法
JP2883193B2 (ja) 距離計システム
JP3581454B2 (ja) 角膜厚測定機能を有する角膜内皮撮影装置
JPH05312510A (ja) 位置検出装置
JPS61255635A (ja) 自動眼屈折力測定装置
US4496231A (en) Mirror reflex camera with exposure meter
JP2678457B2 (ja) 合焦位置検出方法
JP2805040B2 (ja) 眼屈折力測定装置
JPH04313042A (ja) Ｏｔｆ測定装置
JP2566146Y2 (ja) 画像歪測定装置
JPH0510616B2 (en, 2012)