Patent ID: 8858022

Claim:
A lamp, comprising: a single emitter structure having a substrate with 25 or more light-emitting diodes (LEDs) arranged thereon and a power rating of 80 Watts or more; a total-internal-reflection (TIR) lens, the lens including: an optical body member having a substantially straight interior open channel in a lower portion thereof, the interior open channel having a lower opening for accommodating the single emitter structure; the optical body member having a step-shaped upper surface defining an increasingly wider cavity extending from an interior portion to an upper opening in of the optical body; and a plurality of refractive surface regions disposed on the step-shaped upper surface of the optical body; and a holder having a concave interior surface shaped to accommodate the optical body member and a convex exterior surface, the holder having a first opening disposed to surround the lower opening of the optical body member and a second opening opposite the first opening, wherein the optical body member is insertable into the holder through the second opening, the holder further including: a plurality of tabs disposed along an inside rim of the holder and configured for radial compression fit with a flange of the lens; a finger-width sized cut-out; and three or more support members disposed surrounding the first opening of the holder and configured for centering the optical body member with respect to the single emitter structure.