| abstract |
An LED lighting unit comprising: a support structure; an LED-based light-emitting structure mounted inside the support structure; and an optical beam shaping device on top of the support structure. The optical beam shaping device comprises an optically transparent and thermally stable material, and the support structure supports the microstructured layer at a slight height above the LED-based light emitting structure. This height may be, for example, less than 0.5 mm. With this optical beam shaping device, a compact and low-profile lighting unit can be mounted on the carrier by reflow soldering without damaging the optical beam shaping component. |