If you have ever played around with lenses, you’ll know that a convex lens can focus an image onto a target. It can be as simple as focusing the sun with a magnifying glass to burn a hole in a piece ...
Researchers developed a bifocal lens based on two layers of liquid crystal (LC) structures. The intensities for the two focal lengths can be easily adjusted by applying external voltage. WASHINGTON — ...
Amateur Photographer on MSN
The Irwin Workshop Simple 90 review – 3D printed & pure fun
Tim Irwin’s 3D printed 90mm lens is a whole lot better than it looks, says Damien Demolder, and it produces some useful, and ...
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