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US 6,215,409 B1Granted
Display apparatus
AssigneeSolaglo Pty Ltd.
InventorTomasz Blach
Life of this patent
Estimating the term…
Abstract
An edge illuminated sign is provided with a light dispersal to guide light from a light source into an edge of the sign. The light source is an LED and the light dispersal is a triangular prism provided with a recess for enclosing the LED.
Claims12
A display assembly for displaying indicia, comprising:
- a transparent panel including parallel major faces spaced by panel edges;
- a light source;
- a light diffusing element for dispersing light from the light source into the transparent panel whereby the introduced light is internally reflected within the panel from panel/atmosphere interfaces formed at each said major face of the panel;
- and
- indicia covering a portion of one of the major faces so as to prevent internal reflection from one of said panel/atmosphere interfaces and permitting introduced light to travel through the covered portion of said one of the major faces to illuminate the indicia.
2 more elements
A light diffusing element comprising a triangular prism including three rectangular faces wherein one of said three faces is light dispersive, said prism including a recess formed in one of said rectangular faces other than the light dispersive face, the recess housing an LED.
Dependencies are inferred from the claim text.