Hybrid lens for controlled light distribution

An LED light fixture comprising a heat-sink structure having a mounting surface supporting an LED arrangement which comprises plurality of spaced apart LED light sources and a plurality of lenses each optically coupled with a corresponding one of the light sources, the lens comprising an outer light-output surface and an inner light-input surface defining an inner cavity about the emitter axis, the inner surface comprising inner-surface stepwise discontinuities formed by a plurality of transverse inner regions each redirecting light received from the emitter, the outer surface receiving redirected emitter light and comprising outer-surface stepwise discontinuities formed by a plurality of transverse outer regions each redirecting the received light.

A lens for distribution of light from a light emitter having an emitter axis, the lens comprising a faceted output region, a smooth output surface and at least one reflective surface which reflects light through total-internal-reflection (TIR) toward the faceted output region, the faceted output region being formed by pairs of transverse surfaces each surface of which redirects the received light to provide a composite illuminance pattern.