BATWING LIGHT BEAM DISTRIBUTION USING DIRECTIONAL OPTICS

摘要

A luminaire is provided to redirect incidence light from one or more solid state light sources to a batwing distribution with both tunable peak angle and beam width. The peak angle is able to be tuned from 90 degree to 0 degree from the incidence direction with very high efficiency. The beam width is able to be tuned with either narrow beam angle solid state light sources for high efficiency or TIR lens or the optical properties of a reflector for versatility. Uniform illuminance distribution is thus achieved across a wide field with or without a prism or diffuser cover.

主权项

1. A luminaire, comprising:
a light-emitting arrangement comprising a hub having at least one light-emitting side; and at least one light engine located on the at least one light-emitting side of the light-emitting hub, the at least one light engine comprising at least one solid state light source coupled to a substrate, the substrate arranged such that light from the at least one solid state light source is emitted at a light angle in a range of 0 degrees to 90 degrees from nadir to create a batwing distribution.