GB1249873A - Discharge lamp modulation system - Google Patents

Discharge lamp modulation system

Info

Publication number
GB1249873A
GB1249873A GB48670/68A GB4867068A GB1249873A GB 1249873 A GB1249873 A GB 1249873A GB 48670/68 A GB48670/68 A GB 48670/68A GB 4867068 A GB4867068 A GB 4867068A GB 1249873 A GB1249873 A GB 1249873A
Authority
GB
United Kingdom
Prior art keywords
lamp
signal
discharge
resistor
pulse
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
GB48670/68A
Other languages
English (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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1249873A publication Critical patent/GB1249873A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
GB48670/68A 1967-10-16 1968-10-14 Discharge lamp modulation system Expired GB1249873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6709367 1967-10-16

Publications (1)

Publication Number Publication Date
GB1249873A true GB1249873A (en) 1971-10-13

Family

ID=13334909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48670/68A Expired GB1249873A (en) 1967-10-16 1968-10-14 Discharge lamp modulation system

Country Status (7)

Country Link
US (1) US3614307A (enExample)
BR (1) BR6803119D0 (enExample)
DE (1) DE1803376B2 (enExample)
FR (1) FR1587491A (enExample)
GB (1) GB1249873A (enExample)
NL (1) NL6814711A (enExample)
SU (1) SU361610A3 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830967A (en) * 1973-02-05 1974-08-20 Muirhead Inc Apparatus for half tone marking electrostatic paper
EP0104285B1 (en) * 1982-09-28 1986-12-10 Delta Scan Inc. Method and apparatus for producing images on radiation sensitive recording mediums
JPH067660B2 (ja) * 1985-08-29 1994-01-26 キヤノン株式会社 光ビ−ム走査装置
BR9507631A (pt) * 1994-05-11 1997-09-23 Imation Corp Processos para expor um elemento fototermográfico contendo halogeneto de prata com radisção para produzir um imagem latente e para a formação de imagem de um elemento contendo halogeneto de prata fototermográfico
US7794512B2 (en) * 2007-03-16 2010-09-14 Afton Chemical Corporation Supplying tungsten to a combustion system or combustion system exhaust stream containing iron

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2203882A (en) * 1934-12-28 1940-06-11 Rca Corp Photoamplifier system
US3156826A (en) * 1961-06-14 1964-11-10 Engelhard Hanovia Inc Light communication system employing superimposed currents applied to a high intensity light source
GB1097735A (en) * 1964-09-23 1968-01-03 Kyte Derek John Improvements in or relating to printing
US3443028A (en) * 1964-10-13 1969-05-06 Dick Co Ab Modulated scanning system
GB1133444A (en) * 1964-10-29 1968-11-13 Charles Gunn Russell Apparatus for producing a carrier modulated by an optical input to the apparatus
US3471701A (en) * 1967-07-19 1969-10-07 Magnavox Co Radiation sensitive transducing system

Also Published As

Publication number Publication date
US3614307A (en) 1971-10-19
DE1803376B2 (de) 1971-07-01
NL6814711A (enExample) 1969-04-18
FR1587491A (enExample) 1970-03-20
SU361610A3 (enExample) 1972-12-07
DE1803376A1 (de) 1970-03-26
BR6803119D0 (pt) 1973-01-16

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