Lens, Optic Technology and Eye Safety
 
To take advantage of the ever increasing efficacy of the most advanced LEDs, efficient optic design is essential to capture as much of the luminous flux emitted by the LED as possible. An evenly illuminated surface area is evidence of competent optic design.

With significant advances in LED brightness, eye safety considerations are increasingly important.

In interior lights it is essential for high power LEDs to be coupled with optic designs that protect the eye’s retina. It is desirable for a large portion of the lens area of a luminaire to be evenly illuminated via an efficient optic rather than using a bundle of LEDs without any optic. Easily visible LEDs inside a luminaire without any optic or lens protection can cause a degree or even significant eye discomfort if viewed directly.