Optical scanning apparatus with beam splitter to provide plural light beams
Multibeam scanning apparatus provided with a function of changing magnification
Beam recording apparatus
Scanning method using a plurality of beams and apparatus therefor
Image forming apparatus Patent #: 4445126
ApplicationNo. 06/488807 filed on 04/26/1983
US Classes:359/204, Utilizing plural light beams359/214, Single plane mirror element359/218, Having six, seven, or eight facets359/221Having planar rotating reflector with rotation axis in its plane
ExaminersPrimary: Henry, Jon W.
Attorney, Agent or Firm
International ClassesH04N 1/191 (20060101)
G02B 26/10 (20060101)
G06K 15/12 (20060101)
H04N 1/113 (20060101)
Foreign Application Priority Data1982-05-04 JP
AbstractAn apparatus for scanning a plane with light beams is disclosed, in which divergent laser emitting beams emitted from laser beam emitting points of a semiconductor laser unit are collimated by a collimator lens and directed toward a refractor located at a position at which the individual laser beams are spatially separated from each other. The refractor projects the laser beams in slightly different directions. The laser beams transmitted from the refractor are converged by a convergent lens to be incident on a galvanomirror. As the galvenomirror is swinging about its axis of swinging, the laser beams reflected by it are deflected. A surface is thus scanned by the convergent laser beams from the galvanomirror.