LED INSPECTION LAMP, CLUSTER LED, AND LED WITH STABILIZING AGENTS

摘要

LED inspection lamps and spot lights have a plurality of LED sources. For some, radiation passing through lenses is superimposed in target area at target distance. The LED sources may be a cluster LED having more than one semiconductor die. The LED package may have a domed forward surface forward of each semiconductor die for optical purposes. The domed surface may be designed to work either with or without additional optics. The LED package may be made of epoxy having additives to resist degradation of the epoxy by ultraviolet or visible violet radiation from the LED sources. The package may be made of a material other than epoxy, such as acrylic or another thermoplastic, or a casting resin. The package may have a first, ultraviolet-resistant material that surrounds the LED chip and that is surrounded by a second material which may be epoxy.