Optical rotary control device using a microprocessor

Details Optical rotary control device using a microprocessor Optical rotary control device using a microprocessor

1993-07-02

1996-06-25

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359146, 250229, H04B 1000

Patent

active

055305768

ABSTRACT:
A rotary control device is provided comprising a light receptor (52), a plurality of light sources (54) radially spaced from the light receptor (52), a light director (14) having means for directing light from the light source (54) to the receptor (52) and means for rotating the director (14) thereby selectively directing light from the light sources (54) to the light receptor (52). In another aspect of the invention, the optical rotary device further comprises an isolator (56) made of opaque material which surrounds four sides of the light receptor (52) and four sides of the light sources (54). In a further aspect of the invention the light director includes a reflector (46) for directing the light from the light sources (54) to the light receptor (52).

REFERENCES:
patent: 4631399 (1956-12-01), Ward
patent: 4818051 (1989-04-01), Fraser
patent: 4964693 (1990-10-01), Branan et al.
patent: 5177355 (1993-01-01), Branan, Jr.
patent: 5347123 (1994-09-01), Jackson et al.
patent: 5359448 (1994-10-01), Laszlo et al.
patent: 5379143 (1995-01-01), Takano
patent: 5392146 (1995-02-01), Jackson et al.

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