Edge illumination of an ion-exchanged glass sheet

摘要

A planar ion-exchanged glass sheet for out-of-plane light beam coupling includes a first surface, a ion-exchanged first glass region adjacent and parallel to the first surface, a core glass region adjacent and parallel to the first glass region, a ion-exchanged second glass region adjacent and parallel to the core glass region, and a second surface adjacent and parallel to the second glass region. One edge of the glass sheet has an angled end face that is inclined to the plane extends across a thickness of at least one of the glass regions. Methods of making the planar ion-exchanged glass sheet, coupling an out-of-plane light beam into a plane using the planar ion-exchanged glass sheet, and scattering the coupled light to illuminate at least select regions of an exposed surface of the glass sheet are also disclosed.

主权项

1. A glass sheet comprising:
a top surface and a bottom surface; a first ion-exchanged glass region adjacent to the top surface of the glass sheet; a second ion-exchanged glass region adjacent to the bottom surface of the glass sheet; a core glass region intermediate the first and second ion-exchanged glass regions; scattering features at least one of dispersed within the glass sheet and dispersed on the top surface of the glass sheet; and an angled end face inclined to the top surface and extended across a thickness of at least one of the glass regions.