Patent ID: 8540394

Claim:
An apparatus, comprising: a substrate having a plurality of cavities formed therein, each said cavity being mirror coated and having a generally parabolic shape in cross section; and a plurality of lenses respectively disposed in the plurality of cavities, each said lens comprising: a body portion having a curved upper surface; and first and second flares on opposing sides of the body portion, the first and second flares being symmetrical about an axis of the body portion, wherein each said flare comprises first, second, and third profiles, in which: the first profile curving away from the body portion and substantially matching the parabolic shape of the cavity in which the lens is disposed, the second profile extending generally upwardly and inwardly from an uppermost part of the first profile, and the third profile extending between an uppermost part of the second profile and an end of the curved upper surface of the body portion.