Illuminated emergency sign utilizing led units

Details Illuminated emergency sign utilizing led units Illuminated emergency sign utilizing led units

G - Physics

09

F

G09F 13/06 (2006.01) G09F 13/04 (2006.01) G09F 13/00 (2006.01)

Patent

CA 2161940

An emergency exit sign has a housing in which a pair of LED units are disposed. Each LED unit has two rows of diodes, the rows connected in reverse polarity to an A.C. source so that said rows are illuminated alternatingly. A diffuser plate disposed between the LED units and a stencil plate is formed of a translucent plastic material having a light transmittance frequency to the peak wavelength of light emitted from the diodes. The diodes are exposed to the diffuser plate so that the diffuser plate receives both direct and indirect light therefrom.

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