Digitizer with illuminatable working surface

Details Digitizer with illuminatable working surface Digitizer with illuminatable working surface

G - Physics

08

C

340/136

G08C 21/00 (2006.01) G06F 3/033 (2006.01)

Patent

CA 2030839

ABSTRACT OF THE DISCLOSURE Digitizer tablet and digitizer tablet structure having an illuminable working surface are disclosed. A space between a top translucent layer having the working surface and a source of light is provided so as to eliminate or minimize undesirable lighting effects at the working surface. In the preferred embodiments, the space is an air gap (e.g. 0.060-0.250 inch) immediately adjacent the top translucent layer. The air gap is formed by transparent optical fibers or solid glass or acrylic rods. Back-lighted, translucent, back-lightable (without light source) and surface lighted digitizer tablet embodiments are described.

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