This led him to several hypotheses about what ... pits in the silicon could act as a mold for an array of microscopic convex lenses. He was able to deposit a small amount of clear silicone resin ...

Could there be a better way? Of course there could, and [Sasa Karanovic] thought he had it all figured out with this PCB-based LED cube. At first glance, it seems to make perfect sense ...

Gaggione is offering versions of its Avika range of LED streetlight lenses ... 50 x 50mm optics with the same PCB location pin positions and screw mounting hole. All are designed and made in France.