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WEARABLE DATA DISPLAY

  • US 20140204455A1
  • Filed: 08/22/2012
  • Published: 07/24/2014
  • Est. Priority Date: 08/24/2011
  • Status: Abandoned Application
First Claim
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1. A transparent wearable data display comprising:

  • a source of light;

    a means for collimating said light;

    a means for deflecting said collimated light into a scanned beam;

    a first array comprising one column containing M switchable grating elements sandwiched between first and second parallel transparent substrates, said substrates together functioning as a first light guide;

    a second array comprising N columns and M rows of switchable grating elements sandwiched between third and fourth parallel transparent substrates, said substrates together functioning as a second light guide;

    transparent electrodes applied to said first and second and said third and fourth substrates;

    a first coupling means for directing said scanned beam into a first TIR light path between the outer surfaces of said first lightguide along said first array column; and

    a second coupling means linking each element of said first array to the first element of a row of elements of said second array,said switchable grating elements each having a diffracting state and a non diffracting state,each element of said first array when in its diffracting state directing light via said second coupling means into a second TIR path along a row of said second array,each element of said second array in said diffracting state deflecting light through said fourth substrate.

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