Light-based touch screen using elongated light guides

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9389730
APP PUB NO 20110210946A1
SERIAL NO

13053264

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A touch screen including a housing, a display mounted in the housing, a plurality of collimating lenses mounted in the housing and arranged along a first edge of the display, a plurality of light pulse emitters mounted in the housing that are spaced apart from and serially transmit light pulses through the collimating lenses over the display, a light guide mounted in the housing along the edge of the display opposite the first edge, for receiving the light pulses, the light guide including a reflective strip that reflects light pulses to one end of the light guide, a light pulse receiver mounted in the housing near the one end of the light guide, for receiving the reflected light pulses, and a calculating unit, mounted in the housing and connected to the receiver, for determining a location of a pointer on the display that partially blocks light pulses transmitted by the emitters, based on outputs of the receiver.

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Patent Owner(s)

  • NEONODE INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eriksson, Thomas Stocksund, SE 140 3209
Goertz, Magnus Lidingo, SE 34 1965
Jansson, Anders Älta, SE 45 1396
Karlsson, John Märsta, SE 41 1494
Kvist, Niklas Varmdo, SE 25 1104
Pettersson, Robert Hägersten, SE 39 1437
Shain, Joseph Rehovot, IL 51 1942
Sparf, Lars Vällingby, SE 45 1457

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