A manufacturable achromatic fresnel lens for CPV

Abstract

The CPV industry has moved to very high concentration ratios (1000X or more) but the commonly used Fresnel lenses are limited to concentration ratios closer to 200X by chromatic aberration, leading manufacturers to turn to secondary optical elements, which increase cost and complexity. Here we present the achromatic on glass (ADG) lens a novel achromatic lens design and manufacturing method that may be similar in cost to existing silicone on glass (SOG) lenses but with improved performance In addition, the paper also summarizes on the results of ray-trace simulations, and experimental results of the first prototype lenses, proving the viability of the design.