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Halo Optics has a new, hand-held ranger finder designed for accurate readings out to 1,000 yards. I’ve never used one of these, but Halo products receive mostly good reviews on the web. “Delivering ...

A hand-held optical device that can detect metals, plastics and explosives could speed up the search for landmines. Researchers from the Technical University of Clausthal in Germany have developed a ...

WASHINGTON -- Researchers have developed and demonstrated the first handheld ophthalmology instrument with resolution-boosting adaptive optics technology that can image individual photoreceptors in ...

WASHINGTON, Aug. 6, 2014—A new hand-held device that uses lasers and sound waves may change the way doctors treat and diagnose melanoma, according to a team of researchers from Washington University ...