WEARABLE DATA DISPLAY
First Claim
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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Accused Products
Abstract
A transparent wearable data display having a source of collimated light a deflector for deflecting the collimated light into a scanned beam, and a first array including one column and integer N rows of switchable grating elements sandwiched between first and second parallel transparent substrates. The substrates together functioning as a first light guide, and a second array including M columns and N rows of switchable grating elements sandwiched between third and fourth parallel transparent substrates which together function as a second lightguide. Transparent electrodes are applied to opposing substrates. A first coupling for directing the scanned beam into a first TIR light path of the first lightguide along the first array column; and a second coupling for directing the first TIR light into a second TIR path of the second lightguide along a row of elements of the second array.
239 Citations
23 Claims
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1. A transparent wearable data display comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification