JPS562519A - Display method of mtf measuring instrument - Google Patents

Display method of mtf measuring instrument

Info

Publication number
JPS562519A
JPS562519A JP7857579A JP7857579A JPS562519A JP S562519 A JPS562519 A JP S562519A JP 7857579 A JP7857579 A JP 7857579A JP 7857579 A JP7857579 A JP 7857579A JP S562519 A JPS562519 A JP S562519A
Authority
JP
Japan
Prior art keywords
checked
display units
calculation result
display
result
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
JP7857579A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kamimoto
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 JP7857579A priority Critical patent/JPS562519A/en
Publication of JPS562519A publication Critical patent/JPS562519A/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
    • G01M11/0292—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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To make it possible to know at a look the check result of every point of an optical element to be checked, by displaying on display units relative relations between an acceptance/rejection deciding numeral and measurement results of points of the optical element to be checked. CONSTITUTION:After converting image-forming light from each chart element, CCD131-139 send outputs in time series. The output signals of CCDs are converted by A/D converter 23 into digital signals and arithmetic circuit 24 performs MTF calculation. According to which one is selected among CCD131Z-139, control circuit 25 selects one of display units 271-279 and makes the display unit display the arithmetic result of arithmetic circuit 24. In this case, the calculation result is compared to an acceptance/rejection deciding numeral set by digital switch 28 and when the calculation result is less, the display unit that displays the calculation result is caused to flash. Display units 271-279, arranged corresponding to CCD131-139, i.e. respective measured values of a checked lens, flash when corresponding measurement points are not accepted, so that which point of the checked lens is a failure can be found at a look.
JP7857579A 1979-06-21 1979-06-21 Display method of mtf measuring instrument Pending JPS562519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7857579A JPS562519A (en) 1979-06-21 1979-06-21 Display method of mtf measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7857579A JPS562519A (en) 1979-06-21 1979-06-21 Display method of mtf measuring instrument

Publications (1)

Publication Number Publication Date
JPS562519A true JPS562519A (en) 1981-01-12

Family

ID=13665691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7857579A Pending JPS562519A (en) 1979-06-21 1979-06-21 Display method of mtf measuring instrument

Country Status (1)

Country Link
JP (1) JPS562519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008018573A1 (en) * 2006-08-07 2008-02-14 Acutelogic Corporation Mtf measuring system, mtf measuring method, mtf measuring unit and mtf measuring program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943343A (en) * 1972-07-10 1974-04-24
JPS5180110A (en) * 1975-01-08 1976-07-13 Nippon Electric Co ccd rainsensaano hoshiki

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943343A (en) * 1972-07-10 1974-04-24
JPS5180110A (en) * 1975-01-08 1976-07-13 Nippon Electric Co ccd rainsensaano hoshiki

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008018573A1 (en) * 2006-08-07 2008-02-14 Acutelogic Corporation Mtf measuring system, mtf measuring method, mtf measuring unit and mtf measuring program
KR101001233B1 (en) 2006-08-07 2010-12-17 어큐트로직 가부시키가이샤 Mtf measuring system, mtf measuring method, mtf measuring unit and computer-readable recording medium recording thereon a mtf measuring program
US8077300B2 (en) 2006-08-07 2011-12-13 Acutelogic Corporation MTF measuring system, MTF measuring method, MTF measuring unit and MTF measuring program

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