Method for a quantitative detection of a linear and rotary movement
AssigneeOsram Opto Semi-Conductors GmbH Co. OHG
InventorsHeinz Haas, Martin Haushalter, Frank Möllmer
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Abstract
A method for a quantitative detection of a linear movement or rotary movement. The method includes the steps of emitting radiation from at least two light emitters in a pulsed mode at a same clock frequency or different clock frequencies and detecting the radiation from the two light emitters by a detection device. It furthermore includes the steps of increasingly shadowing the radiations by a movable grid device or separating signals originating from different light emitters by an evaluation circuit coupled to said detection device.
Claims1
A method for a quantitative detection of one of a linear movement and rotary movement, comprising the steps of:
- emitting radiation from at least two light emitters in a pulsed mode at one of a same clock frequency and different clock frequencies;
- detecting said radiation from said at least two light emitters by a detection device;
- increasingly shadowing one of the radiations by a movable grid device;
- and
- separating signals originating from different light emitters by an evaluation circuit coupled to said detection device.
Dependencies are inferred from the claim text.