Laser scanning motor having a rotating polygonal mirror and meth

Details Laser scanning motor having a rotating polygonal mirror and meth Laser scanning motor having a rotating polygonal mirror and meth

1986-07-23

1989-06-06

Corbin, John K.

Electrical generator or motor structure

Dynamoelectric

Rotary

350609, 310 46, 26427220, G02B 2610, H02K 3700

Patent

active

048366315

ABSTRACT:
A laser scanning motor includes a coreless flat brushless motor disposed in a rotatable polygonal mirror having polygonal outer mirror surfaces. A light beam applied to the polygonal mirror is deflected by controlling the rotation of the coreless flat brushless motor. Poles and a bearing holder of the coreless flat brushless motor in a rotor assembly are formed of a plastic magnetic material. When manufacturing the laser scanning motor, the poles and the bearing holder are formed simultaneously by filling the plastic magnetic material in one operation, and then firmly securing the poles and bearing holder to the rotor assembly.

REFERENCES:
patent: 2988456 (1961-06-01), Fairbanks et al.
patent: 4132910 (1979-01-01), Kiss et al.
patent: 4141620 (1979-02-01), Goshima et al.
patent: 4363984 (1982-12-01), Torii et al.
patent: 4455516 (1984-06-01), Furusho
patent: 4523800 (1985-06-01), Yamashita et al.
patent: 4551645 (1985-11-01), Takahashi et al.
patent: 4606251 (1986-09-01), Nakaoka et al.
Patent Abstracts of Japan, vol. 7, No. 216, Sep. 24, 1983 & JP-A-58 108 513.
Patent Abstracts of Japan, vol. 9, No. 89, Apr. 18, 1985 & JP-A-59 220 060.

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