SCANNER USING ROTOR SURFACE AS MIRROR FINISHED SURFACE,申请号JP19950021031-传众专利搜索

SCANNER USING ROTOR SURFACE AS MIRROR FINISHED SURFACE

申请公布号：JPH08194182(A)

申请号：JP19950021031

申请日期：1995.01.13

申请公布日期：1996.07.30

申请人：

TOKYO KOKU KEIKI KK

发明人：AIHARA TETSUO;OKABE KAZUHIDE

分类号：G02B26/12;G02B26/10;H04N1/113;(IPC1-7):G02B26/10

主分类号：G02B26/12

摘要：PURPOSE: To provide a scanner capable of stable scanning with a light beam, even if the scanner is a compact low-speed-rotation scanner which can be suitably used for a road traffic communication system, etc. CONSTITUTION: The surface of the rotor of a three-phase synchronous motor is used. The stator shaft 1 of a motor is fixedly supported by a supporting frame 10 together with a motor stator 6. Mirror finished surfaces 4 are formed on the surface of a polygon mirror main body 2 integrated to a motor rotor (hysteresis ring) 5. Motor rotor 5 and a stator core 6 are constituted so that their lengths in an axial direction are about two times as large as their radii. The scanner motor of the constitution is rotated at a low speed (about 250rpm), to execute forward scanning with light from a light emitting element.