JPS56149681A - Digital picture producer - Google Patents

Digital picture producer

Info

Publication number
JPS56149681A
JPS56149681A JP5294280A JP5294280A JPS56149681A JP S56149681 A JPS56149681 A JP S56149681A JP 5294280 A JP5294280 A JP 5294280A JP 5294280 A JP5294280 A JP 5294280A JP S56149681 A JPS56149681 A JP S56149681A
Authority
JP
Japan
Prior art keywords
afterglow
film
picture
modulator
flux
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
JP5294280A
Other languages
Japanese (ja)
Inventor
Yoichi Takagi
Yutaka Kubo
Keinosuke Nakajima
Naoki Shimizu
Morihito Miyashita
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.)
NATSUKU KK
Hitachi Ltd
Original Assignee
NATSUKU KK
Hitachi 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 NATSUKU KK, Hitachi Ltd filed Critical NATSUKU KK
Priority to JP5294280A priority Critical patent/JPS56149681A/en
Publication of JPS56149681A publication Critical patent/JPS56149681A/en
Pending 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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the deterioration of quality for a picture recorded on a film, by using the two picture buffer memories in switch and providing a rotary disk to cut off the afterglow for a device that records a digital picture on a film. CONSTITUTION:The luminous flux 391 sent from the light source 301 is modulated by a modulator 303, and the picture signals sent from the CPU200 are stored alternately into the two buffer memories in the interface 370 to be delivered alternately to the modulator 303 in the form of modulated signals. As a result, the nonmodulation period during which the modulator 303 gives no modulation to the flux 391. The modulated luminous flux 392 passes through the rotary disk 306 having an unevenness on its circumference. Thus the disk 306 cuts off the nonmodulated luminous flux at its convex part. Thus flux 392 scans a line of film via the rotary mirror 312. Thus the afterglow (nonmodulated light) can be reduced by switching the two buffer memories alternately, and the afterglow is cut off by the rotary disk. As a result, no afterglow is recorded on the film.
JP5294280A 1980-04-23 1980-04-23 Digital picture producer Pending JPS56149681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5294280A JPS56149681A (en) 1980-04-23 1980-04-23 Digital picture producer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5294280A JPS56149681A (en) 1980-04-23 1980-04-23 Digital picture producer

Publications (1)

Publication Number Publication Date
JPS56149681A true JPS56149681A (en) 1981-11-19

Family

ID=12928916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5294280A Pending JPS56149681A (en) 1980-04-23 1980-04-23 Digital picture producer

Country Status (1)

Country Link
JP (1) JPS56149681A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131541A (en) * 1973-04-04 1974-12-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131541A (en) * 1973-04-04 1974-12-17

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