rgbphil
Enlightened
Just had a thought. It seems that manufacturers are improving the types of resin being used in LEDs. We've gone from hard plastic to the strange semi-rubbery stuff you find on K2s and Golden Dragons.
Presumably the new resin doesn't do as much mechanical trauma to the die/wire bond when the LED heats up/cools down, and junction temps (hence forward current+brightness) can increase.
What about the old style 'LED in a can' type LEDs with modern dies and heat sinking methods. The LED would be in a metal can, presumably sealed and the lens would be on top. There would be no resin about the die/wire. I'd imagine something similiar to the UV EPROM windows, but with better heatsinks.
No doubt this would be much more expensive....but would they actually allow even higher junction temperatures and LED outputs?
Phil
Presumably the new resin doesn't do as much mechanical trauma to the die/wire bond when the LED heats up/cools down, and junction temps (hence forward current+brightness) can increase.
What about the old style 'LED in a can' type LEDs with modern dies and heat sinking methods. The LED would be in a metal can, presumably sealed and the lens would be on top. There would be no resin about the die/wire. I'd imagine something similiar to the UV EPROM windows, but with better heatsinks.
No doubt this would be much more expensive....but would they actually allow even higher junction temperatures and LED outputs?
Phil