JPS5576902A - Method for measuring depth of concave face of soft contact lens - Google Patents

Method for measuring depth of concave face of soft contact lens

Info

Publication number
JPS5576902A
JPS5576902A JP15141478A JP15141478A JPS5576902A JP S5576902 A JPS5576902 A JP S5576902A JP 15141478 A JP15141478 A JP 15141478A JP 15141478 A JP15141478 A JP 15141478A JP S5576902 A JPS5576902 A JP S5576902A
Authority
JP
Japan
Prior art keywords
lens
concave face
water
face
contact
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.)
Pending
Application number
JP15141478A
Other languages
Japanese (ja)
Inventor
Shinzo Osumi
Yoshio Yamamoto
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP15141478A priority Critical patent/JPS5576902A/en
Publication of JPS5576902A publication Critical patent/JPS5576902A/en
Pending legal-status Critical Current

Links

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)
  • Eyeglasses (AREA)

Abstract

PURPOSE: To accurately and easily measure the depth of the concave face of a soft contact lens by a contact stylus while placing the concave face on the lower side of the lens under water, by keeping the top of the convex face of the lens out of the water.
CONSTITUTION: A container 1 is filled with water 2. A soft contact lens 3 is set in the center of the water 2 so that the concave face of the lens is located on its lower side and the top of the convex face of the lens remains over the water. A contact stylus 6 has a threaded part 7 and is moved up by rotating a knob 9. The moment the tip 5 of the contact stylus 6 comes into touch with the bottom 4 of the concave face the indicated value of graduations 8 is read to determine the depth d of the concave face. When the top of the convex face of the lens is in contact with the surface of the water, the lens is prevented from horizontally rocking. This results in accurately and easily measuring the depth of the concave face of the lens.
COPYRIGHT: (C)1980,JPO&Japio
JP15141478A 1978-12-07 1978-12-07 Method for measuring depth of concave face of soft contact lens Pending JPS5576902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15141478A JPS5576902A (en) 1978-12-07 1978-12-07 Method for measuring depth of concave face of soft contact lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15141478A JPS5576902A (en) 1978-12-07 1978-12-07 Method for measuring depth of concave face of soft contact lens

Publications (1)

Publication Number Publication Date
JPS5576902A true JPS5576902A (en) 1980-06-10

Family

ID=15518079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15141478A Pending JPS5576902A (en) 1978-12-07 1978-12-07 Method for measuring depth of concave face of soft contact lens

Country Status (1)

Country Link
JP (1) JPS5576902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023757A1 (en) * 1989-07-28 1991-02-07 Olympus Optical Co SPHAEROMETER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023757A1 (en) * 1989-07-28 1991-02-07 Olympus Optical Co SPHAEROMETER
US5131159A (en) * 1989-07-28 1992-07-21 Olympus Optical Company Limited Spherometer

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