JPH0299841A - Eccentricity measuring apparatus for lens system - Google Patents

Eccentricity measuring apparatus for lens system

Info

Publication number
JPH0299841A
JPH0299841A JP63253231A JP25323188A JPH0299841A JP H0299841 A JPH0299841 A JP H0299841A JP 63253231 A JP63253231 A JP 63253231A JP 25323188 A JP25323188 A JP 25323188A JP H0299841 A JPH0299841 A JP H0299841A
Authority
JP
Japan
Prior art keywords
lens
measurement
collimator lens
indicator
measured
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.)
Granted
Application number
JP63253231A
Other languages
Japanese (ja)
Other versions
JP2621119B2 (en
Inventor
Susumu Ariga
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP63253231A priority Critical patent/JP2621119B2/en
Publication of JPH0299841A publication Critical patent/JPH0299841A/en
Application granted granted Critical
Publication of JP2621119B2 publication Critical patent/JP2621119B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/20Measuring arrangements characterised by the use of mechanical means for measuring contours or curvatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means

Abstract

PURPOSE: To enable complete correction of misalignment of a collimator lens for measurement by determining a deflection of a reflection image from a lens system to be measured with respect to a reference axis.
CONSTITUTION: A measuring apparatus 1 is made up of a light source 2, a capacitor lens 3, an indicator 4, a semipermeable mirror 5, a collimator lens 6 for measurement, a lens system 7 to be measured, an imaging surface 8, a semipermeable mirror 9 composing an optical system for setting axis, an image rotator 10, a collimator lens 11 and a reflecting mirror 12. In measurement, the light source 2 and the collimator lens 6 for measurement are adjusted to project the indicator 4 on a surface to be measured of the lens system 7 to be measured. Then, coordinates are determined for a reflection image of the indicator 4 on the imaging surface 8 while the image rotator 10 is turned to adjust the light source 2 and the collimator lens 11 so that the reflection image of the indicator 4 is projected on an image 8 formed to determine coordinates of the center of rotation. Then, a deflection is determined from a coordinate difference therebetween. This enables complete correction of misalignment of the collimator lens for measurement.
COPYRIGHT: (C)1990,JPO&Japio
JP63253231A 1988-10-07 1988-10-07 Method and apparatus for measuring eccentricity of lens system Expired - Fee Related JP2621119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63253231A JP2621119B2 (en) 1988-10-07 1988-10-07 Method and apparatus for measuring eccentricity of lens system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63253231A JP2621119B2 (en) 1988-10-07 1988-10-07 Method and apparatus for measuring eccentricity of lens system
KR1019890014342A KR920009802B1 (en) 1988-10-07 1989-10-06 Eccentricity measuring apparatus for lens system

Publications (2)

Publication Number Publication Date
JPH0299841A true JPH0299841A (en) 1990-04-11
JP2621119B2 JP2621119B2 (en) 1997-06-18

Family

ID=17248394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63253231A Expired - Fee Related JP2621119B2 (en) 1988-10-07 1988-10-07 Method and apparatus for measuring eccentricity of lens system

Country Status (2)

Country Link
JP (1) JP2621119B2 (en)
KR (1) KR920009802B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443936A (en) * 1990-06-08 1992-02-13 Olympus Optical Co Ltd Instrument and method for measuring eccentricity quantity of lens system
JPH0472539A (en) * 1990-07-13 1992-03-06 Olympus Optical Co Ltd Off-center measuring device for lens system
US5844670A (en) * 1995-07-28 1998-12-01 Ricoh Co., Ltd. Method of and systems for measuring eccentricity of an aspherical lens surface
US7511803B2 (en) 2004-05-28 2009-03-31 Canon Kabushiki Kaisha Method for displaying result of measurement of eccentricity

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4474150B2 (en) 2003-11-28 2010-06-02 キヤノン株式会社 Eccentricity measurement method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443936A (en) * 1990-06-08 1992-02-13 Olympus Optical Co Ltd Instrument and method for measuring eccentricity quantity of lens system
JPH0472539A (en) * 1990-07-13 1992-03-06 Olympus Optical Co Ltd Off-center measuring device for lens system
US5844670A (en) * 1995-07-28 1998-12-01 Ricoh Co., Ltd. Method of and systems for measuring eccentricity of an aspherical lens surface
US7511803B2 (en) 2004-05-28 2009-03-31 Canon Kabushiki Kaisha Method for displaying result of measurement of eccentricity

Also Published As

Publication number Publication date
KR920009802B1 (en) 1992-10-22
JP2621119B2 (en) 1997-06-18
KR900006758A (en) 1990-05-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees