Ncr Corporation

Mark Robert Forsyth Smith

David Knight Norrie

A light-emitting indicator can include a molded, transparent housing formed with a central area shaped as a square that extends in a plane. A plurality of light emitting diodes, optionally formed integrally with the housing, can be positioned along edges of a square that surrounds the central area. The light emitting diodes can emit light to propagate inside the housing toward the central area. A light guide, optionally formed integrally with the housing, can be positioned in a peripheral area shaped to include an area between two concentric squares that surround the central area. The light guide can direct the emitted light out of the plane. Control circuitry can be positioned along the edges of the square that includes the light emitting diodes. The control circuitry can cause the light emitting diodes to blink at a specified frequency, which can draw the attention of a user.

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Perthshire, United Kingdom

Mark Robert Forsyth Smith