Compact optional rotary encoder having adjustable light admittin

Details Compact optional rotary encoder having adjustable light admittin Compact optional rotary encoder having adjustable light admittin

1984-11-02

1986-06-03

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

250231SE, 340347M, G01D 534, H03K 1302

Patent

active

045932697

ABSTRACT:
An optical rotary encoder comprises a body having a bottom disc portion having a first axial bearing and a cylindrical portion, an open end of which is closed by an end cap having a second axial bearing. A rotary detection shaft passes axially through the disc portion and end cap and is carried by the first and second bearings. A pair of opposing light emitting and receiving means disposed around the shaft between the bearings, so that a light beam emitted by the emitting means can be received by the receiving means through a rotary slit wheel on the shaft and a stationary slit ring plate of the body.

REFERENCES:
patent: B503618 (1976-03-01), Willits
patent: 3693024 (1972-09-01), Hulle et al.
patent: 3738504 (1973-06-01), Vail et al.

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