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 planar ion-exchanged glass sheet for integrated out-of-plane light beam coupling and illumination of a surface of the glass sheet, the glass sheet comprising:
a first surface; an ion-exchanged first glass region parallel and adjacent to the first surface; a core glass region parallel and adjacent to the first glass region; an ion-exchanged second glass region parallel and adjacent to the core glass region; a second surface parallel and adjacent to the second glass region; light scattering features disposed at least one of (a) on the first surface and (b) within a volume of at least one of the glass regions; and an angled end face that is inclined to the first surface and extends across a thickness of at least one of the glass regions.