JPS5760243A - Measuring apparatus for fresnel lens - Google Patents

Measuring apparatus for fresnel lens

Info

Publication number
JPS5760243A
JPS5760243A JP13636980A JP13636980A JPS5760243A JP S5760243 A JPS5760243 A JP S5760243A JP 13636980 A JP13636980 A JP 13636980A JP 13636980 A JP13636980 A JP 13636980A JP S5760243 A JPS5760243 A JP S5760243A
Authority
JP
Japan
Prior art keywords
fresnel lens
lens
measured
photo
pin hole
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
JP13636980A
Other languages
Japanese (ja)
Inventor
Takao Yamaguchi
Kozo Sudo
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13636980A priority Critical patent/JPS5760243A/en
Publication of JPS5760243A publication Critical patent/JPS5760243A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0228—Testing optical properties by measuring refractive power

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE:To achieve a simultaneous measurement of a focal distance and diffusing property in a handy and accurate manner for a Fresnel lens of a single lens reflex camera. CONSTITUTION:A light from the pin hole of a chart 4 is made parallel with a collimeter lens 5 and enters a Fresnel lens 6 to be measured. The parallel light flux converges on a certain point after passing the Fresnel lens 6. A pinhole plate 7 and a photo dtector 8 are moved together along the optical axis to find such a position of the photo detector 8 that an ammeter 9 rises to the highest value in the reading. At this point, the distance between the Fresnel lens 6 and the photo detection surface of the pin hole plate 7 is measured to obtain the focal distance of the lens 6. When the peak of the measured value is compared with the peak value previously obtained from a sample master having a mat surface arranged to be varied in the roughness, the diffusion peroperty of the Fresnel lens can be determined as well.
JP13636980A 1980-09-30 1980-09-30 Measuring apparatus for fresnel lens Pending JPS5760243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13636980A JPS5760243A (en) 1980-09-30 1980-09-30 Measuring apparatus for fresnel lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13636980A JPS5760243A (en) 1980-09-30 1980-09-30 Measuring apparatus for fresnel lens

Publications (1)

Publication Number Publication Date
JPS5760243A true JPS5760243A (en) 1982-04-12

Family

ID=15173549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13636980A Pending JPS5760243A (en) 1980-09-30 1980-09-30 Measuring apparatus for fresnel lens

Country Status (1)

Country Link
JP (1) JPS5760243A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61263509A (en) * 1985-05-15 1986-11-21 Satoru Imamura Vibratory transport machine
JPH03269335A (en) * 1990-03-20 1991-11-29 Mitsubishi Electric Corp Lamp emitting type light source
US5601489A (en) * 1982-10-13 1997-02-11 Sharp Kabushiki Kaisha Compact electronic apparatus with removable processing units
WO2008072709A1 (en) * 2006-12-14 2008-06-19 Panasonic Corporation Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element
CN103175675A (en) * 2011-12-22 2013-06-26 中国计量学院 Concentration magnification testing device
WO2013178611A1 (en) * 2012-05-30 2013-12-05 Fresnel Optics Gmbh Arrangement for optically characterizing fresnel lenses
JP2018077461A (en) * 2016-09-29 2018-05-17 株式会社ミツトヨ Variable focal length lens system with focus monitoring and control

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601489A (en) * 1982-10-13 1997-02-11 Sharp Kabushiki Kaisha Compact electronic apparatus with removable processing units
JPS61263509A (en) * 1985-05-15 1986-11-21 Satoru Imamura Vibratory transport machine
JPH03269335A (en) * 1990-03-20 1991-11-29 Mitsubishi Electric Corp Lamp emitting type light source
WO2008072709A1 (en) * 2006-12-14 2008-06-19 Panasonic Corporation Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element
US8089620B2 (en) 2006-12-14 2012-01-03 Panasonic Corporation Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element
US8284388B2 (en) 2006-12-14 2012-10-09 Panasonic Corporation Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element
US8390799B2 (en) 2006-12-14 2013-03-05 Panasonic Corporation Method for measuring optical characteristics of diffraction optical element and apparatus for measuring optical characteristics of diffraction optical element
CN103175675A (en) * 2011-12-22 2013-06-26 中国计量学院 Concentration magnification testing device
WO2013178611A1 (en) * 2012-05-30 2013-12-05 Fresnel Optics Gmbh Arrangement for optically characterizing fresnel lenses
JP2018077461A (en) * 2016-09-29 2018-05-17 株式会社ミツトヨ Variable focal length lens system with focus monitoring and control

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