MULTI-LENS LED-ARRAY OPTIC SYSTEM

摘要

Lighting apparatus (10) having a first lens (30) over the LED emitter (20) and a second lens (40) over the first lens, and including: a first optical surface (31) which is a first-lens outer surface (32) configured to refract light from the emitter; a second optical surface (50) which is a second-lens inner surface (41) spaced from the first optical surface; and a third optical surface (43) which is a second-lens outer surface (42) configured to refract light from the second optical surface toward a preferential side (2). One embodiment includes asymmetric primary and secondary lenses.