GB2094471B - Detecting film blackening - Google Patents

Detecting film blackening

Info

Publication number
GB2094471B
GB2094471B GB8205144A GB8205144A GB2094471B GB 2094471 B GB2094471 B GB 2094471B GB 8205144 A GB8205144 A GB 8205144A GB 8205144 A GB8205144 A GB 8205144A GB 2094471 B GB2094471 B GB 2094471B
Authority
GB
United Kingdom
Prior art keywords
detecting film
film blackening
blackening
detecting
film
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.)
Expired
Application number
GB8205144A
Other versions
GB2094471A (en
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.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing 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 Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Publication of GB2094471A publication Critical patent/GB2094471A/en
Application granted granted Critical
Publication of GB2094471B publication Critical patent/GB2094471B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB8205144A 1981-02-27 1982-02-22 Detecting film blackening Expired GB2094471B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2894181A JPS57142548A (en) 1981-02-27 1981-02-27 Photographic density detector for film

Publications (2)

Publication Number Publication Date
GB2094471A GB2094471A (en) 1982-09-15
GB2094471B true GB2094471B (en) 1984-11-07

Family

ID=12262425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8205144A Expired GB2094471B (en) 1981-02-27 1982-02-22 Detecting film blackening

Country Status (4)

Country Link
JP (1) JPS57142548A (en)
DE (1) DE3204066C2 (en)
FR (1) FR2500929B1 (en)
GB (1) GB2094471B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107242A (en) * 1982-12-11 1984-06-21 Dainippon Screen Mfg Co Ltd Device for measuring blackened amount of film
US5198878A (en) * 1990-11-30 1993-03-30 International Business Machines Corporation Substrate machining verifier
US5117119A (en) * 1991-03-13 1992-05-26 Minnesota Mining And Manufacturing Company Auto-ranging film densitometer
JP3438624B2 (en) * 1998-12-01 2003-08-18 ウシオ電機株式会社 Lamp blackening detection method
JP7248281B2 (en) * 2018-10-02 2023-03-29 新電子株式会社 Optical transmission measuring device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506838A (en) * 1968-02-02 1970-04-14 Cutler Hammer Inc Photoelectric defect detector responding to inequality of residual charges on pairs of capacitors connected to pairs of photocells
GB1268905A (en) * 1968-07-19 1972-03-29 Plessey Co Ltd Improvements in or relating to integrated circuit devices
DE1797219A1 (en) * 1968-08-30 1971-08-05 Adox Du Pont Fotowerke Device for measuring the blackening of exposed and developed samples of photographic films
US3814846A (en) * 1972-01-20 1974-06-04 Reticon Corp High density photodetection array
JPS563409B2 (en) * 1974-04-19 1981-01-24
JPS5528504Y2 (en) * 1976-03-12 1980-07-08
DE2641130C3 (en) * 1976-09-13 1980-05-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for determining the density of a print template
GB1519800A (en) * 1976-12-08 1978-08-02 Atomic Energy Authority Uk Densitometers for use with radiation film dosimeters
US4197088A (en) * 1977-09-23 1980-04-08 Akro-Medic Engineering, Inc. Method for qualitative and quantitative determination of immunological reactions

Also Published As

Publication number Publication date
GB2094471A (en) 1982-09-15
FR2500929A1 (en) 1982-09-03
DE3204066C2 (en) 1986-02-20
DE3204066A1 (en) 1982-09-16
FR2500929B1 (en) 1986-01-31
JPS57142548A (en) 1982-09-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930222