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I'm working on a few projects that require lenses to focus LED light flashes, similar to those lenses used by police lights (TIR lens) and other strobe traffic lighting utilizing Fresnel lenses. I've scoured the internet and cannot find anyone selling just the lenses or any guides on how they are/can be made in custom situations. I've provided a few examples below:

Link 1

Link 2

I found an article detailing such traffic light lenses and that currently they are chiefly made out of polycarbonate but not anything further.

I am asking how to create these lenses and or trying to find a place that will allow me to purchase them.

Zero
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1 Answers1

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Alibaba is the best place to begin sourcing parts. If your quantity is high enough many of the manufacturers can also customize.

Here are a few of the many Alibaba manufacturers:
PMMA (acrylic) lenses
Glass Lenses
Polycarboneate Lenses

The lenses are made by injection molding; the mold is cut (and subsequently polished) out of steel or aluminum by a CNC milling machine. Any optically clear material can be used to form the lens. The above materials are common choices because they are UV resistant for use outdoors in sunlight.

ericnutsch
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