Is there any way to put plano-convex conical lenses, or something broadly equivalent, on 5050 SMD LEDs?
The lenses I'm talking about are the type commonly built into cheap christmas-tree lights:
As you can see in the second picture, these lenses distribute quite a lot of the light "horizontal" to the alignment of the LED, with fairly little light going normal to the LED. All other LED lenses I've seen, even those meant to diffuse the light as evenly as possible, have a "hot spot" centered directly above the LED.
The reason I'm asking is, I'm trying to build something not unlike what's depicted in this Youtube Video, which depicts an led-backlit art project. I want to make something similar, but much thinner, which means I need to diffuse the light from the LEDs much more evenly - or else, use a lot more LEDs, which isn't practical in my case.
