A LED symbol signal with LEDs arrayed to correspond to a desired symbol.
Light from the LEDs is directed onto corresponding optical segments of a
multiple collimating zone element and directed into a forward
direction/distribution. A mask defines the desired symbol. The optical
segments and or a diffusion surface on the cover or multiple collimating
zone element(s) diffuses the display aspect, obscuring the individual
LEDs. A diameter of the optical features of the diffusion surface is
smaller than a diameter of the optical segments. The LED symbol signal may
be configured for retrofitting into an incandescent lamp signal housing.
