JPS6343091B2 - - Google Patents

Info

Publication number
JPS6343091B2
JPS6343091B2 JP56010108A JP1010881A JPS6343091B2 JP S6343091 B2 JPS6343091 B2 JP S6343091B2 JP 56010108 A JP56010108 A JP 56010108A JP 1010881 A JP1010881 A JP 1010881A JP S6343091 B2 JPS6343091 B2 JP S6343091B2
Authority
JP
Japan
Prior art keywords
curvature
image
lens
image sensor
bright spot
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
Application number
JP56010108A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57125302A (en
Inventor
Makoto Uehara
Masao Noda
Shuichi Nakaharai
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 JP56010108A priority Critical patent/JPS57125302A/ja
Publication of JPS57125302A publication Critical patent/JPS57125302A/ja
Publication of JPS6343091B2 publication Critical patent/JPS6343091B2/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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Eye Examination Apparatus (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
JP56010108A 1981-01-28 1981-01-28 Automatic measuring device of radius of curvature Granted JPS57125302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010108A JPS57125302A (en) 1981-01-28 1981-01-28 Automatic measuring device of radius of curvature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010108A JPS57125302A (en) 1981-01-28 1981-01-28 Automatic measuring device of radius of curvature

Publications (2)

Publication Number Publication Date
JPS57125302A JPS57125302A (en) 1982-08-04
JPS6343091B2 true JPS6343091B2 (zh) 1988-08-29

Family

ID=11741115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010108A Granted JPS57125302A (en) 1981-01-28 1981-01-28 Automatic measuring device of radius of curvature

Country Status (1)

Country Link
JP (1) JPS57125302A (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819225A (ja) * 1981-07-29 1983-02-04 マミヤ光機株式会社 角膜計
JPH0651023B2 (ja) * 1986-03-25 1994-07-06 キヤノン株式会社 眼科装置
JPS62290435A (ja) * 1986-06-09 1987-12-17 キヤノン株式会社 角膜形状測定装置

Also Published As

Publication number Publication date
JPS57125302A (en) 1982-08-04

Similar Documents

Publication Publication Date Title
US5907388A (en) Ophthalmic measurement apparatus having plural pairs of photoreceiving elements
US20090096987A1 (en) Eye Measurement Apparatus and a Method of Using Same
JP3630884B2 (ja) 眼科検査装置
JPS6128333B2 (zh)
EP0210722B1 (en) Apparatus for measuring the refractive power or radius of curvature of an optical system
US4407572A (en) Keratometer
US5300965A (en) Corneal shape measuring apparatus
US4453808A (en) Apparatus for detecting the position of a patient's eye in ophthalmologic instruments
US4761070A (en) Eye refractometer
US4676612A (en) Eye examining apparatus
US5781275A (en) Eye refractometer and eye refractive power measuring apparatus for electro-optically measuring the refractive power of the eye
US4591247A (en) Eye refractometer
JPS6343091B2 (zh)
US4364646A (en) Position adjusting device for ophthalmologic instrument
JPS61170433A (ja) 自動曲率測定装置
JPH035810B2 (zh)
US4611913A (en) Method and apparatus for analyzing ophthalmic elements and the like
JP2614324B2 (ja) 角膜形状測定装置
JPH0346774B2 (zh)
JP3206936B2 (ja) 眼屈折計
JP3476219B2 (ja) 眼屈折力測定装置
JPH0154055B2 (zh)
JPH0554325B2 (zh)
JPS629331B2 (zh)
JPS6240568Y2 (zh)