How a Cylindrical Lens Needs to Focus Light Differently
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Dec 9, 2018
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Cylindrical Lens Puzzle: this cylinder of acrylic acts as lens that focuses light along a line rather than a point- and thus it can invert an image along its symmetry axis. Puzzle question: the word “GREEN” is flipped by this lens but the word “TOMATO” seems unaffected. Is the physics significantly different for red wavelengths as compare to green? Or is there another explanation/trick? Answer below. ➡️ Follow the link in my profile for info on where to buy this and other amazing items featured
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