WEARABLE DATA DISPLAY

摘要

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 of switchable grating elements sandwiched between first and second parallel transparent substrates, which together functioning as a first light guide. A first coupling is provided for directing the scanned beam into a first total internal reflection (TIR) light path of the first light guide along the first array column. The grating elements having diffracting and non-diffracting states, in their diffracting state deflecting light out of said light guide. The grating elements are switchable into their diffracting states one group of elements at a time.

主权项

1. A transparent wearable data display comprising:
a source of light; a means for forming said light into a scanned beam; a first multiplicity of switchable grating elements sandwiched between first and second parallel transparent substrates, said substrates together functioning as a first light guide; a first coupling means for directing said scanned beam into a first total internal reflection light path between the outer surfaces of said first light guide, each said grating element having diffracting and non-diffracting states, each said grating element in its diffracting state deflecting light out of said light guide, wherein said grating elements are switched into their diffracting states one group of elements at a time.