Invention Application
- Patent Title: OPTICAL PROXIMITY SENSORS
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Application No.: US15990587Application Date: 2018-05-25
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Publication No.: US20180296915A1Publication Date: 2018-10-18
- Inventor: Stefan Holmgren , Sairam Iyer , Richard Berglind , Karl Erik Patrik Nordström , Lars Sparf , Per Rosengren , Erik Rosengren , John Karlsson , Thomas Eriksson , Alexander Jubner , Remo Behdasht , Simon Fellin , Robin Kjell Åman , Joseph Shain
- Applicant: Neonode Inc.
- Main IPC: A63F13/31
- IPC: A63F13/31 ; G06F3/0488 ; A63F13/213 ; A63F13/26 ; A63F13/355 ; A63F13/92 ; A63F9/24 ; A63F13/21 ; G06F3/042 ; G06F3/0354 ; G06F3/03 ; G06F3/02 ; G06F3/01 ; G06F1/16 ; G01S17/88 ; G01S17/48 ; G01S17/02 ; G01S7/481 ; G01J1/42 ; G01J1/04 ; A63F13/428 ; A63F13/33 ; A63F13/211

Abstract:
A proximity sensor, including a housing, an array of lenses mounted in the housing, an array of alternating light emitters and light detectors mounted in the housing, each detector being positioned along the image plane of a respective one of the lenses so as to receive maximum light intensity when light enters the lens at a particular angle, an activating unit mounted in the housing and connected to the emitters and detectors, synchronously co-activating each emitter with at least one of the detectors, each activated emitter projecting light out of the housing along a detection plane, and a processor receiving outputs from the detectors corresponding to amounts of projected light reflected by an object in the detection plane to the detectors, and calculating a two-dimensional location of the object in the detection plane based on the detector outputs and the particular angle.
Public/Granted literature
- US10534479B2 Optical proximity sensors Public/Granted day:2020-01-14
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