25mm Laser Collimating Lens - Pulled From $5k Laser Communication Unit

US $35.00

  • Columbia, South Carolina, United States
  • Mar 9th
Up for sale is a 25mm Laser Collimating Lens, pulled from a $5k wireless IR Laser Communication System that would normally sit atop of a high-rise and send an infrared signal to another building, providing Internet access or for other wireless communication (top secret messages). While the material doesn't feel like glass, it makes the same sound glass does when I lightly tap it on my teeth (don't judge), and is heavy like glass. It could be quartz or some other similar material. I put a non-focused laser up to it and if I kept the lens about four inches away there was a perfect tiny circle on the wall.  This, along with the other types of lenses found in that unit (four of these, and four 80mm lenses) are very nice examples of what a collimating lens should be. In fact I'm keeping one of each and selling the others, because I don't foresee myself having another opportunity to have a lens like this again. If you have questions feel free to ask and payment due within 24 hours of purchase or it gets re-listed. Thanks,  Bill

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