Abstract: An illumination system includes a substrate; a one-dimensional (1D) array of light emitting diodes (LEDs) distributed on the substrate along a first direction; a 1D array of lenses optically coupled in one-to-one correspondence with the 1D array of LEDs; and a 1D array of light shields optically coupled in one-to-one correspondence with the 1D array of lenses, each light shield of the 1D array of light shields having an input aperture and an output aperture, the light shield comprising a lateral surface extending between the input aperture and the output aperture in a second direction substantially orthogonal to the first direction.

Abstract: An illumination system includes a housing elongated along a first direction, a substrate supported inside the housing and extending along the first direction, a plurality of light emitting diodes (LEDs) distributed along and supported by the substrate inside the housing; and a co-formed optical element extending along the first direction, the co-formed optical element including an optical coupler made from a first material and a lens made from a second, different material, where the optical coupler and the lens are integrally co-formed as a single piece such that the lens joins seamlessly with the optical coupler.