AU4024697A - Apparatus for measuring percentage dot in printing and the like applications - Google Patents

Apparatus for measuring percentage dot in printing and the like applications

Info

Publication number
AU4024697A
AU4024697A AU40246/97A AU4024697A AU4024697A AU 4024697 A AU4024697 A AU 4024697A AU 40246/97 A AU40246/97 A AU 40246/97A AU 4024697 A AU4024697 A AU 4024697A AU 4024697 A AU4024697 A AU 4024697A
Authority
AU
Australia
Prior art keywords
printing
applications
measuring percentage
percentage dot
dot
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.)
Abandoned
Application number
AU40246/97A
Inventor
Jacob Oskar Michael Andelin
Steven Nicholas Colthorpe
Gary Laurence Stewart
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.)
Centurfax Ltd
Original Assignee
Centurfax 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 Centurfax Ltd filed Critical Centurfax Ltd
Publication of AU4024697A publication Critical patent/AU4024697A/en
Abandoned 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N21/5911—Densitometers of the scanning type
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N2021/5957—Densitometers using an image detector type detector, e.g. CCD

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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
AU40246/97A 1996-08-27 1997-08-26 Apparatus for measuring percentage dot in printing and the like applications Abandoned AU4024697A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9617876 1996-08-27
GB9617876A GB2316741B (en) 1996-08-27 1996-08-27 Apparatus for measuring percentage dot in printing and the like applications
PCT/GB1997/002280 WO1998009248A1 (en) 1996-08-27 1997-08-26 Apparatus for measuring percentage dot in printing and the like applications

Publications (1)

Publication Number Publication Date
AU4024697A true AU4024697A (en) 1998-03-19

Family

ID=10798984

Family Applications (1)

Application Number Title Priority Date Filing Date
AU40246/97A Abandoned AU4024697A (en) 1996-08-27 1997-08-26 Apparatus for measuring percentage dot in printing and the like applications

Country Status (3)

Country Link
AU (1) AU4024697A (en)
GB (1) GB2316741B (en)
WO (1) WO1998009248A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0011702D0 (en) * 2000-05-15 2000-07-05 Centurfax Ltd Methods of inspercting flexographic and the like printing plates
GB0618408D0 (en) * 2006-09-19 2006-11-01 Laurie Mullaney Associates Ltd Test equipment for screen printing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525003B1 (en) * 1982-04-08 1987-12-11 Gascuel Jean Paul METHOD FOR READING A TEXT PRINTED BY A NEEDLE HEAD AND READ HEAD FOR IMPLEMENTING THE METHOD
CH672212A5 (en) * 1983-06-03 1989-10-31 Gravure Inc
JPS6158088A (en) * 1984-08-29 1986-03-25 Hitachi Ltd Method for recognizing dot print characters
US4673807A (en) * 1984-10-12 1987-06-16 Dai Nippon Insatso Kabushiki Kaisha Automatic range control method for an optical density/dot percentage measuring device
US4758897A (en) * 1985-04-30 1988-07-19 Konishiroku Photo Industry Co., Ltd. Method and apparatus for estimating halftone image from binary image
JPS61290865A (en) * 1985-06-19 1986-12-20 Ricoh Co Ltd Half tone digital image processing device
JPS62133864A (en) * 1985-12-05 1987-06-17 Minolta Camera Co Ltd Apparatus and method for preparing original for reproducing color picture
JPH02224188A (en) * 1989-02-27 1990-09-06 Nec Corp Device for counting black dots of binary image information
US5315405A (en) * 1989-08-29 1994-05-24 Mutoh Industries Ltd. Binary circuit of scanner read image data

Also Published As

Publication number Publication date
GB9617876D0 (en) 1996-10-09
GB2316741B (en) 2000-08-02
WO1998009248A1 (en) 1998-03-05
GB2316741A (en) 1998-03-04

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