公开(公告)号：DE3482060D1

公开(公告)日：1990-05-31

申请号：DE3482060

申请日：1984-01-02

Applicant: IBM

Inventor： HIGGINS ROBERT CARL ,  STANICH MIKEL JOHN ,  WOLFE LARRY LANCE

IPC: B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  G03G15/04 ,  H04N1/113

Abstract: The invention relates to a scanning system for use with solid-state laser chips (200) to counteract variations in wavelength produced by solid-state chips, to counteract astigmatism effects common to laser chips, to counteract variations in the distance between the plane of emission of the beam and the plane of a collimating lens, to counteract variations in beam size in perpendicular planes, to counteract variations in the divergence angle of emission common to laser chips, and to counteract tilt variations caused by imperfect reflecting surfaces. The system includes an apertured achromatic doublet lens (201, 202) for collimating the beam, a cylindrical lens (101), a rotating mirror (102), and a combination of toroidal (203) and spherical (204) lenses.