Patent ID: 8714784

Claim:
An LED lamp comprising: a transparent light pipe enclosed in an envelope, wherein the light pipe has a lower section and an upper section; an LED in a recess at a lower end of the lower section of the light pipe; and a reflector formed by an indentation in an upper end of the upper section of the light pipe; wherein the lower section of the light pipe collects light emitted from the LED, the upper section of the light pipe directs the collected light onto the reflector, and the reflector reflects the directed light in a radial direction, and wherein the lower section of the light pipe is a compound parabolic concentrator, wherein the compound parabolic concentrator collimates the light emitted from the LED, and wherein the upper section of the light pipe is a tapered cylinder that narrows towards the upper end of the light pipe, wherein the tapered cylinder directs the collimated light from the compound parabolic concentrator to the reflector.