JPS561330A - Frequency chart for measuring mtf - Google Patents

Frequency chart for measuring mtf

Info

Publication number
JPS561330A
JPS561330A JP7708679A JP7708679A JPS561330A JP S561330 A JPS561330 A JP S561330A JP 7708679 A JP7708679 A JP 7708679A JP 7708679 A JP7708679 A JP 7708679A JP S561330 A JPS561330 A JP S561330A
Authority
JP
Japan
Prior art keywords
mtf
portions
dimentional
frequency
white portion
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
JP7708679A
Other languages
Japanese (ja)
Other versions
JPS6248177B2 (en
Inventor
Takashi Yokota
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 JP7708679A priority Critical patent/JPS561330A/en
Publication of JPS561330A publication Critical patent/JPS561330A/en
Publication of JPS6248177B2 publication Critical patent/JPS6248177B2/ja
Granted 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
    • G01M11/0292—Testing optical properties of objectives by measuring the optical modulation transfer function

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE:To permit MTF of an arbitrary image height in the directions orthogonal to each other to be readily and reliably measured by using a chart having specific shape. CONSTITUTION:A frequency chart comprises a one-dimentional lattice pattern portion LA towards A, a one-dimentional lattic pattern portion LB towards B, a white portion W provided at the intersection of the lattic pattern portions LA and LB, and black portions NA and NB provided adjacent to the white portion W. The white portion W and the black portions NA and NB are used for measuring MTF of a space frequency 0. The space frequencies of the one-dimentional lattice pattern portions LA and LB are the space frequencies to be measured.
JP7708679A 1979-06-19 1979-06-19 Frequency chart for measuring mtf Granted JPS561330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7708679A JPS561330A (en) 1979-06-19 1979-06-19 Frequency chart for measuring mtf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7708679A JPS561330A (en) 1979-06-19 1979-06-19 Frequency chart for measuring mtf

Publications (2)

Publication Number Publication Date
JPS561330A true JPS561330A (en) 1981-01-09
JPS6248177B2 JPS6248177B2 (en) 1987-10-13

Family

ID=13623963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7708679A Granted JPS561330A (en) 1979-06-19 1979-06-19 Frequency chart for measuring mtf

Country Status (1)

Country Link
JP (1) JPS561330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183533U (en) * 1987-05-18 1988-11-25

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100349976C (en) * 2004-09-24 2007-11-21 中国石油化工股份有限公司 Rubber modified nylon composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183533U (en) * 1987-05-18 1988-11-25
JPH0522847Y2 (en) * 1987-05-18 1993-06-11

Also Published As

Publication number Publication date
JPS6248177B2 (en) 1987-10-13

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