optic lens to collimate/focus light from a LED.

Integral

A point source at the focal distance of a lens will produce a parallel beam out. So you want a 10-30mm focal length lens.

You need the thin lens equation.

Integral Mentor Blog Entries: 9	optic lens to collimate/focus light from a LED. A point source at the focal distance of a lens will produce a parallel beam out. So you want a 10-30mm focal length lens. You need the thin lens equation.