Apparatus and method for correcting imperfection in a polygon used for laser scanning
Laser recording system
Laser recorder reproducing a picture having half-tones of high accuracy
Multilevel image printing device
Mirror structure Patent #: 4482209
ApplicationNo. 06/627891 filed on 07/05/1984
US Classes:347/247, Driving circuitry347/132, Beam generator driving means347/134, Optical elements interposed between record receiver and beam generator347/260, Having deflector358/302Photographic
ExaminersPrimary: Goldberg, E. A.
Assistant: Peco, Linda M.
Attorney, Agent or Firm
International ClassesH04N 1/401 (20060101)
G06K 15/12 (20060101)
Foreign Application Priority Data1983-07-08 JP
AbstractIn a laser beam scanner apparatus for scanning the surface of a photosensitive drum or a document to be read by deflecting a laser beam emitted from a laser diode with a deflector, there is provided a drive current control circuit for controlling the magnitude of drive current of said laser diode on the basis of a beam deflection angle of said deflector.