Spot TIR lens system for small high-power emitter

摘要

A lamp includes 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 with a plurality of refractive surface regions disposed on the step-shaped upper surface of the optical body, and a holder having a plurality of tabs disposed along an inside rim of the holder and configured for radial compression fit with a flange of the lens, and three or more support members configured for centering the optical body member with respect to the single emitter structure.

主权项

1. A lamp, comprising:
a single emitter structure having a substrate with a plurality light-emitting diodes (LEDs) arranged thereon; a total-internal-reflection (TIR) lens, the TIR 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 of the optical body; anda plurality of refractive surface regions disposed on the step-shaped upper surface of the optical body.