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1. (WO2014194151) OPTICAL PROXIMITY SENSORS

Pub. No.:    WO/2014/194151    International Application No.:    PCT/US2014/040112
Publication Date: Fri Dec 05 00:59:59 CET 2014 International Filing Date: Sat May 31 01:59:59 CEST 2014
IPC: G06F 3/041
Applicants: NEONODE INC.
Inventors: HOLMGREN, Stefan
IYER, Sairam
BERGLIND, Richard
NORDSTRÖM, Karl, Erik, Patrik
SPARF, Lars
ROSENGREN, Per
ROSENGREN, Erik
KARLSSON, John
ERIKSSON, Thomas
JUBNER, Alexander
BEHDASHT, Remo
FELLIN, Simon
ÅMAN, Robin, Kjell
SHAIN, Joseph
Title: OPTICAL PROXIMITY SENSORS
Abstract:
A proximity sensor including a housing, a plurality of light pulse emitters for projecting light out of the housing along a detection plane, a plurality of primary light detectors for detecting reflections of the light projected by the emitters, by a reflective object in the detection plane, a plurality of primary lenses oriented relative to the emitters and primary detectors in such a manner that for each emitter-detector pair, light emitted by the emitter of that pair passes through one of the primary lenses and is reflected by the object back through one of the primary lenses to the detector of that pair when the object is located at a position, from among a primary set of positions in the detection plane, that position being associated with that emitter-detector pair, and a processor for co-activating emitter-detector pairs, and configured to calculate a location of the object in the detection plane.