JPS6463824A - Light and color measuring device for printing control - Google Patents

Light and color measuring device for printing control

Info

Publication number
JPS6463824A
JPS6463824A JP21994487A JP21994487A JPS6463824A JP S6463824 A JPS6463824 A JP S6463824A JP 21994487 A JP21994487 A JP 21994487A JP 21994487 A JP21994487 A JP 21994487A JP S6463824 A JPS6463824 A JP S6463824A
Authority
JP
Japan
Prior art keywords
light
printed material
tristimulus values
color density
measuring device
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
JP21994487A
Other languages
Japanese (ja)
Inventor
Noboru Ota
Seiichi Taguchi
Tsuneo Suzuki
Masahiro Terahata
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP21994487A priority Critical patent/JPS6463824A/en
Publication of JPS6463824A publication Critical patent/JPS6463824A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To obtain the tristimulus values and three-color density of a colored printed material at the same time, by forming a photometer part and a colorimeter part for the printed material as a unitary body by using a light splitting means. CONSTITUTION:Light from a printed material, which is lit with a light source, is condensed through a lens 1. The light is transmitted through an optical fiber 2. Thereafter, the light is split through six pieces of optical fibers 31-36. Three- color density R, G and B are obtained through three-color filters 44-46 having specified transmittances. Tristimulus values X, Y and Z are directly obtained by further using filters 41-43 having specific transmittance distributions without obtaining spectral distribution and spectral reflectance. Thus, the three-color density and the tristimulus values of the printed material can be measured at the same time.
JP21994487A 1987-09-02 1987-09-02 Light and color measuring device for printing control Pending JPS6463824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21994487A JPS6463824A (en) 1987-09-02 1987-09-02 Light and color measuring device for printing control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21994487A JPS6463824A (en) 1987-09-02 1987-09-02 Light and color measuring device for printing control

Publications (1)

Publication Number Publication Date
JPS6463824A true JPS6463824A (en) 1989-03-09

Family

ID=16743477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21994487A Pending JPS6463824A (en) 1987-09-02 1987-09-02 Light and color measuring device for printing control

Country Status (1)

Country Link
JP (1) JPS6463824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141323A (en) * 1988-09-09 1992-08-25 Heidelberger Druckmaschinen Ag Color measurement system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4849483A (en) * 1971-10-20 1973-07-12
JPS58111719A (en) * 1981-12-25 1983-07-02 Sony Magnescale Inc Displacement quantity detector
JPS59128419A (en) * 1983-01-13 1984-07-24 Toppan Printing Co Ltd Printed material inspecting device
JPS61134636A (en) * 1984-12-05 1986-06-21 Kawasaki Steel Corp Method for measuring degree of decoloration of steel sheet surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4849483A (en) * 1971-10-20 1973-07-12
JPS58111719A (en) * 1981-12-25 1983-07-02 Sony Magnescale Inc Displacement quantity detector
JPS59128419A (en) * 1983-01-13 1984-07-24 Toppan Printing Co Ltd Printed material inspecting device
JPS61134636A (en) * 1984-12-05 1986-06-21 Kawasaki Steel Corp Method for measuring degree of decoloration of steel sheet surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141323A (en) * 1988-09-09 1992-08-25 Heidelberger Druckmaschinen Ag Color measurement system

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