Patent ID: 8075982
Filing Date: 2011-12-13
Classification: A63H,B43L,G02B,G03G,Y10T

Abstract:
1. A device for making illuminated markings, the device comprising: a light guide plate comprising an optical material having a first surface and an opposing second surface sufficient to establish total internal reflection within the light guide plate; a light source optically coupled with the light guide plate such that light from the light source travels within the light guide plate due to the principle of total internal reflection; and a film mounted to the first surface of the light guide plate, wherein the film and the light guide plate are separated by a layer of air, such that an application of pressure to the film causes the film to displace air and bond with the first surface of the light guide plate at a bonded area, wherein the bonded area of the film to the light guide plate disrupts total internal reflection within the light guide plate, enabling light from the light guide plate to pass into the film, resulting in illumination of the bonded area of the film.