By-directional brushless motor scanner

Details By-directional brushless motor scanner By-directional brushless motor scanner

1980-06-27

1982-02-23

Corbin, John K.

Illumination

Supported by vehicle structure

Condition responsive

350 691, 362811, G02B 2717

Patent

active

043166482

ABSTRACT:
The by-directional brushless electric motor scanner is an optical scanner that reflects a beam of light to a variety of points thereby creating what appears to be continuous geometric and other figures and it comprises a base, a by-directional brushless electric motor coupled to the base, a shaft having a rest position and a shaft axis wherein the shaft is coupled to the motor so that the shaft is rotatable about the shaft axis by the motor, a reflecting surface coupled to the shaft so that the reflecting surface is rotatable and a spring coupled to the base and to the shaft so that the spring will exert a force on the shaft toward the rest position when the shaft is rotated about the shaft axis from the rest position.

REFERENCES:
patent: 167372 (1875-08-01), Wheeler
patent: 3433011 (1969-03-01), Iwasawa et al.
patent: 3679888 (1972-07-01), Reiback
patent: 4196461 (1980-04-01), Geary
Optical Scanning System Components, Spectra-Jan. 1980, p. 89.
Precision Opts., Applied Optics, 1, May 1980, vol. 19, #9.

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