Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 8, 2015
Patent Application Number
13698822
Date Filed
May 23, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
We present optical systems suitable for focusing two substantially collimated beams or sheets of light propagating in different directions onto a common focal point. In some embodiments the optical systems comprise separate focusing elements for each beam or sheet of light, while in other embodiments the optical systems comprise a focusing element and a redirection element. The optical systems have particular application in the receive optics of infrared touch screens, where they enable the detection of additional light paths that assist in the determination of two or more simultaneous touch events.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
