LED LINEAR FRESNEL OPTIC FOR REDUCING ANGULAR SPREAD OF LIGHT FROM LED ARRAY

摘要

The light source may comprise a cylindrical lens, for example a cylindrical Fresnel lens, a linear array of light emitting elements aligned with a cylindrical Fresnel lens as a linear array of light emitting elements and emitting light through a cylindrical Fresnel lens, Type Fresnel lens reduces the angular spread of light in the transverse axis of the linear array, and the linear array spans the lens length.