07738746 is referenced by 9 patents and cites 28 patents.

A data input apparatus having at least one transmit element coupled to a source of light of a predetermined wavelength, at least one light receive element and a detection device to detect interruption of beams of the light of said predetermined wavelength extending from said transmit element to said receive element wherein at least one of said transmit element and said receive element comprises at least one waveguide having a light transmitting core and a non-core portion and one or more discontinuance means adapted to reduce transmission of stray light within the non-core portion. The discontinuance is adapted to scatter, absorb, divert or block stray light and can be applied to one or more of the upper cladding, lower cladding, substrate or common base.

Title
Optical elements for waveguide-based optical touch screens
Application Number
11/552380
Publication Number
7738746 (B2)
Application Date
October 24, 2006
Publication Date
June 15, 2010
Inventor
Warwick Todd Holloway
Kambah
AU
Benjamin Cornish
Acton
AU
Ian Andrew Maxwell
New South Wales
AU
Robbie Charters
Palmerston
AU
Agent
Miller Matthias & Hull
Assignee
RPO
AU
IPC
G02B 6/10
G06F 3/042
G02B 6/00
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