Does magnifying glass work on a similar principle?
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Amazon.com: 30X Magnifying Glass with Light (12 LED & 1 UV), High Grade Large Illuminated Magnifier for Seniors, Reading Tiny Labels & Prints, Hobby, Inspections, Macular Degeneration, HQ Gift Box(Included) : Health
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Principle and a magnifying glass on English word Principle to symbolize studying, examining or searching for an explanation and answers related to a c Stock Photo - Alamy
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COOL Science Blog - Magnifying Glasses: more going on than you'd think!