JPS5689171A - Picture recording device - Google Patents

Picture recording device

Info

Publication number
JPS5689171A
JPS5689171A JP16598879A JP16598879A JPS5689171A JP S5689171 A JPS5689171 A JP S5689171A JP 16598879 A JP16598879 A JP 16598879A JP 16598879 A JP16598879 A JP 16598879A JP S5689171 A JPS5689171 A JP S5689171A
Authority
JP
Japan
Prior art keywords
light emission
fluorescent material
illumination intensity
bright point
intensity variance
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.)
Granted
Application number
JP16598879A
Other languages
Japanese (ja)
Other versions
JPS6159588B2 (en
Inventor
Takaaki 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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16598879A priority Critical patent/JPS5689171A/en
Publication of JPS5689171A publication Critical patent/JPS5689171A/en
Publication of JPS6159588B2 publication Critical patent/JPS6159588B2/ja
Granted 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)
  • Fax Reproducing Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Heads (AREA)

Abstract

PURPOSE:To enable to correct an illumination intensity variance with a high precision, by providing a fluorescent material, which has the light emission peak in the wave length region insensitive to a photoreceptor, besides the fluorescent material, which generates a light emission bright point for picture recording, on the fluorescent face of the CRT. CONSTITUTION:The first fluorescent material A which forms a optical image due to a light emission bright point according to picture input information for every one scanning line and the second fluorescent material B which forms a light emission bright point for correction of illumination intensity variance on material A are provided on the fluorescent face of the CRT. Then, illumination intensity variance is detected from the light emission bright point generated in the second fluorescent material B, and the CRT is subjected to luminance modulation according to this correction signal to correct illumination intensity variance.
JP16598879A 1979-12-20 1979-12-20 Picture recording device Granted JPS5689171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16598879A JPS5689171A (en) 1979-12-20 1979-12-20 Picture recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16598879A JPS5689171A (en) 1979-12-20 1979-12-20 Picture recording device

Publications (2)

Publication Number Publication Date
JPS5689171A true JPS5689171A (en) 1981-07-20
JPS6159588B2 JPS6159588B2 (en) 1986-12-17

Family

ID=15822778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16598879A Granted JPS5689171A (en) 1979-12-20 1979-12-20 Picture recording device

Country Status (1)

Country Link
JP (1) JPS5689171A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02127031A (en) * 1988-11-08 1990-05-15 Tosoh Corp Vessel-shape double-wall hollow molded article

Also Published As

Publication number Publication date
JPS6159588B2 (en) 1986-12-17

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