JPS5797267A - Optical scanning device - Google Patents

Optical scanning device

Info

Publication number
JPS5797267A
JPS5797267A JP55172869A JP17286980A JPS5797267A JP S5797267 A JPS5797267 A JP S5797267A JP 55172869 A JP55172869 A JP 55172869A JP 17286980 A JP17286980 A JP 17286980A JP S5797267 A JPS5797267 A JP S5797267A
Authority
JP
Japan
Prior art keywords
period
light
phase
synchronism
plane
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
JP55172869A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6151822B2 (enrdf_load_stackoverflow
Inventor
Naotoshi Ito
Tsuneo Takei
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 System Solutions Japan Co Ltd
Original Assignee
Matsushita Graphic Communication Systems Inc
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 Graphic Communication Systems Inc filed Critical Matsushita Graphic Communication Systems Inc
Priority to JP55172869A priority Critical patent/JPS5797267A/ja
Publication of JPS5797267A publication Critical patent/JPS5797267A/ja
Publication of JPS6151822B2 publication Critical patent/JPS6151822B2/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
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP55172869A 1980-12-08 1980-12-08 Optical scanning device Granted JPS5797267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55172869A JPS5797267A (en) 1980-12-08 1980-12-08 Optical scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55172869A JPS5797267A (en) 1980-12-08 1980-12-08 Optical scanning device

Publications (2)

Publication Number Publication Date
JPS5797267A true JPS5797267A (en) 1982-06-16
JPS6151822B2 JPS6151822B2 (enrdf_load_stackoverflow) 1986-11-11

Family

ID=15949801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55172869A Granted JPS5797267A (en) 1980-12-08 1980-12-08 Optical scanning device

Country Status (1)

Country Link
JP (1) JPS5797267A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59108450A (ja) * 1982-12-14 1984-06-22 Leo Giken:Kk 回転多面体ミラ−による光走査の誤差補正装置
JPS6052161A (ja) * 1983-08-31 1985-03-25 Nec Corp レ−ザ光量調整装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59108450A (ja) * 1982-12-14 1984-06-22 Leo Giken:Kk 回転多面体ミラ−による光走査の誤差補正装置
JPS6052161A (ja) * 1983-08-31 1985-03-25 Nec Corp レ−ザ光量調整装置

Also Published As

Publication number Publication date
JPS6151822B2 (enrdf_load_stackoverflow) 1986-11-11

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