A method and apparatus for curing photosensitive materials uses LEDs and an
optical concentrator to generate high optical power intensities. An LED
array, comprising a plurality of LED assemblies, generates collimated
light. A collection lens functions as an optical concentrator and focuses
the collimated light to a desired spot size at a desired location. The LED
assemblies may be at least partially disposed in a cooling plenum, where
the cooling plenum is at least partially defined by the collection lens.
Each LED assembly within the LED array may be detachably coupled to a
mounting surface, enabling easy replacement of individual LED assemblies
within the LED array. The photocuring assembly may also include a
redirecting assembly disposed between the collection lens and the desired
location that may further concentrate the light at the desired location.
The photocuring assembly may include more than one of the above features.
