Optical scanner

Details Optical scanner Optical scanner

1988-01-20

1989-08-15

Henry, Jon W.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 36, 318128, G02B 2610, H02K 3300

Patent

active

048568589

ABSTRACT:
The present invention provides an optical scanner including a horizontally arranged base plate, a light source unit rigidly mounted on the base plate and adapted to emit a beam of light, an optical scanning unit for scanning the light beam in a repetitive cycle and an optical system unit for conducting the scanning beam to a desired surface to be irradiated, the optical scanning unit including a unit base, a torsion bar rigidly supported on the unit base at the opposite ends, a rotor rigidly mounted on the twistable portion of the torsion bar and having a mirror for reflecting the light beam, an electromagnetic drive mechanism for applying a rotational drive force to the rotor and a unit-side mirror for further reflecting the reflected light from the mirror, the optical scanning unit being arranged such that the torsion bar is disposed parallel to the base plate, the light beam being scanned along a plane perpendicular to the base plate on the rotation of the rotor and the reflected beam being scanned along a plane substantially parallel to the base plate through the unit-side mirror.

REFERENCES:
patent: 3020414 (1962-02-01), McKnight et al.
patent: 3087373 (1963-04-01), Poor et al.
patent: 3166683 (1985-01-01), Gootherts
patent: 3532408 (1970-10-01), Dostal
patent: 3642344 (1972-02-01), Corker
patent: 4135119 (1979-01-01), Brosens
patent: 4186332 (1980-01-01), Montagu
patent: 4187452 (1980-02-01), Knappe et al.
patent: 4317611 (1982-03-01), Petersen

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