초록 ▼

An optical device for quantitative detection of linear or rotary movements, in which light beams from two light emitters pass through a grid disk which images the movement and has translucent areas and opaque areas. A single photo receiver is also provided in which the transmitted light strikes the

An optical device for quantitative detection of linear or rotary movements, in which light beams from two light emitters pass through a grid disk which images the movement and has translucent areas and opaque areas. A single photo receiver is also provided in which the transmitted light strikes the photo receiver. The light emitters are actuated in a pulsed mode. The pulses are separated from one another in an evaluation circuit that is coupled to the photo receiver.

대표청구항 ▼

[ We claim:] [1.]1. An optical device for quantitative detection of linear movements and rotary movements, comprising:a light emission device having at least two light emitters disposed alongside one another in a direction of one of a linear movement and tangentially with respect to a rotary movemen

[ We claim:] [1.]1. An optical device for quantitative detection of linear movements and rotary movements, comprising:a light emission device having at least two light emitters disposed alongside one another in a direction of one of a linear movement and tangentially with respect to a rotary movement, said at least two light emitters actuatable in a pulsed mode at one of a same clock frequency and different clock frequencies;a grid device containing translucent areas and opaque areas;a detection device having a photo receiver sized and positioned such that radiation emitted from said at least two light emitters can be detected by said photo receiver; andan evaluation circuit coupled to said detection device for separating signals originating from different light emitters.