Lens Configurations for Optical Touch Systems
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United States of America Patent
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Issued Date -
Jul 3, 2008
app pub date -
Dec 27, 2007
filing date -
Dec 27, 2006
priority date (Note) -
Abandoned
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Abstract
An optical system (21) is disclosed, that includes a plurality of waveguides (10, 14) on a substrate (22) and a unitary collimating lens element (23) adjacent and optically coupled to the waveguides (10, 14) and on the same substrate (22). Methods for producing optical systems (21) and a plurality of optical signals are also disclosed. A collimating lens element (23) for the optical system (21) is also disclosed
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