JPS5581342A - Method and apparatus for assessing characteristic of color photographic paper - Google Patents

Method and apparatus for assessing characteristic of color photographic paper

Info

Publication number
JPS5581342A
JPS5581342A JP15468978A JP15468978A JPS5581342A JP S5581342 A JPS5581342 A JP S5581342A JP 15468978 A JP15468978 A JP 15468978A JP 15468978 A JP15468978 A JP 15468978A JP S5581342 A JPS5581342 A JP S5581342A
Authority
JP
Japan
Prior art keywords
color
photographic paper
concentration
light
color photographic
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
JP15468978A
Other languages
Japanese (ja)
Inventor
Haruo Arase
Toshio Yasui
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.)
Mitsubishi Paper Mills Ltd
Original Assignee
Mitsubishi Paper Mills 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 Mitsubishi Paper Mills Ltd filed Critical Mitsubishi Paper Mills Ltd
Priority to JP15468978A priority Critical patent/JPS5581342A/en
Publication of JPS5581342A publication Critical patent/JPS5581342A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Control Of Exposure In Printing And Copying (AREA)

Abstract

PURPOSE:To assess the gradation of color photographic paper and color balance effectively, by using a color compensating filter and a color photographic paper exposed so as to become neutral gray color at an arbitrary concentration position. CONSTITUTION:The light from a light source 1, being adjusted in the wavelength by a color compensation filter 2 and mixed and diffused by a color diffusion box 3 is radiated through a gray light wedge 4 (a wedge of neutral gray color prepared in equal concentration differences) on a color photographic paper contacted on the surface thereon, and exposed (the exposure time is adjusted by a solenoid shutter 5 and a rotary disc type shutter 6 being rotated by a synchronous motor 10). In this operation, the spectral wavelength is adjusted depending on the degree of insertion of the color compensating filter group 2, so that the incident light from the light source 1 may be turned to a neutral gray color at an arbitrary concentration position (e.g. the linear part of concentration 1), and each region concentration of characteristic curve is measured individually for cyan, magenta, and yellow, so that the sensitive layer of undesired tone may be easily found out.
JP15468978A 1978-12-15 1978-12-15 Method and apparatus for assessing characteristic of color photographic paper Pending JPS5581342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15468978A JPS5581342A (en) 1978-12-15 1978-12-15 Method and apparatus for assessing characteristic of color photographic paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15468978A JPS5581342A (en) 1978-12-15 1978-12-15 Method and apparatus for assessing characteristic of color photographic paper

Publications (1)

Publication Number Publication Date
JPS5581342A true JPS5581342A (en) 1980-06-19

Family

ID=15589769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15468978A Pending JPS5581342A (en) 1978-12-15 1978-12-15 Method and apparatus for assessing characteristic of color photographic paper

Country Status (1)

Country Link
JP (1) JPS5581342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599656A (en) * 1982-06-30 1984-01-19 アグフア・ゲヴエルト・ナ−ムロゼ・ベンノ−トチヤツプ Method and material for improving color balance of multicolor photographic image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599656A (en) * 1982-06-30 1984-01-19 アグフア・ゲヴエルト・ナ−ムロゼ・ベンノ−トチヤツプ Method and material for improving color balance of multicolor photographic image

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