Title:
OPTICAL SCANNING DEVICE
Document Type and Number:
Japanese Patent JPH01145622
Kind Code:
A
Abstract:
PURPOSE:To scan a light beam in two dimensions by one mirror by providing a permanent magnet on the flank of a mirror and supplying a current to a driving coil which is arranged opposite it. CONSTITUTION:A permanent magnet piece 14 is provided on the opposite flank of the mirror 11 from its fulcrum and the driving coil 15 is fixed to a support base 12 on the surface facing the permanent magnet 14 across a proper gap and connected to a driving signal 16. Then the current is supplied to the driving coil 15 to generate a magnetic attractive or repulsive force between the permanent magnet 14 and driving coil 15 and this force displaces the mirror 11 in a direction perpendicular to its reflecting mirror, so that the mirror 11 slants by an optional angle in two dimensions. The light beam incident on the mirror 11 is therefore deflected and the current is controlled to scan the light beam. Consequently, the small-sized, integrated two-dimensional scanner is obtained.
Inventors:
NAITO HIROYUKI
KIMURA MINORU
TAKAHASHI HIDEMI
YAMADA OSAMU
YOSHIDA KUNIO
KIMURA MINORU
TAKAHASHI HIDEMI
YAMADA OSAMU
YOSHIDA KUNIO
Application Number:
JP30505387A
Publication Date:
June 07, 1989
Filing Date:
December 01, 1987
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N1/23; G02B26/10; H04N1/04; H04N1/113; (IPC1-7): G02B26/10; H04N1/04; H04N1/23
Attorney, Agent or Firm:
Toshio Nakao (1 outside)
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