JPS629331B2 - - Google Patents

Info

Publication number
JPS629331B2
JPS629331B2 JP56149058A JP14905881A JPS629331B2 JP S629331 B2 JPS629331 B2 JP S629331B2 JP 56149058 A JP56149058 A JP 56149058A JP 14905881 A JP14905881 A JP 14905881A JP S629331 B2 JPS629331 B2 JP S629331B2
Authority
JP
Japan
Prior art keywords
cylindrical lens
cornea
corneal
shape
index
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
JP56149058A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5850937A (ja
Inventor
Yukitsugu Nakamura
Takashi Masuda
Kyoji Sekiguchi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56149058A priority Critical patent/JPS5850937A/ja
Publication of JPS5850937A publication Critical patent/JPS5850937A/ja
Priority to US06/734,234 priority patent/US4660946A/en
Publication of JPS629331B2 publication Critical patent/JPS629331B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Eye Examination Apparatus (AREA)
JP56149058A 1981-09-21 1981-09-21 角膜形状測定装置 Granted JPS5850937A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56149058A JPS5850937A (ja) 1981-09-21 1981-09-21 角膜形状測定装置
US06/734,234 US4660946A (en) 1981-09-21 1985-05-14 Cornea shape measuring method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56149058A JPS5850937A (ja) 1981-09-21 1981-09-21 角膜形状測定装置

Publications (2)

Publication Number Publication Date
JPS5850937A JPS5850937A (ja) 1983-03-25
JPS629331B2 true JPS629331B2 (en]) 1987-02-27

Family

ID=15466743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56149058A Granted JPS5850937A (ja) 1981-09-21 1981-09-21 角膜形状測定装置

Country Status (1)

Country Link
JP (1) JPS5850937A (en])

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59214427A (ja) * 1983-05-23 1984-12-04 キヤノン株式会社 角膜形状測定装置
JP2707249B2 (ja) * 1987-03-06 1998-01-28 キヤノン株式会社 角膜形状測定装置
DE29913603U1 (de) * 1999-08-04 1999-11-25 Oculus Optikgeräte GmbH, 35582 Wetzlar Spaltprojektor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5032947B2 (en]) * 1972-07-20 1975-10-25
JPS5714803Y2 (en]) * 1973-05-22 1982-03-27
JPS5821684B2 (ja) * 1976-05-10 1983-05-02 橋本 進 円周目盛観測装置
JPS5618837A (en) * 1979-07-23 1981-02-23 Canon Kk Keratometer

Also Published As

Publication number Publication date
JPS5850937A (ja) 1983-03-25

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