Picoyune

Picoyune, headquartered in Berkeley, California developed an ultra-stable LEDs called the LeRoy LEDs. 

LeRoy Stabilized Fiber-Coupled LEDs

Picoyune LeRoy Stabilized Fiber-Coupled LEDs lower cost and improve performance of fluorescence spectroscopy.

The LeRoy provides stable output power and control of the LED temperature to within 0.01 ºC.