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Pinhead mirror : ウィキペディア英語版 | Pinhead mirror
A pinhead mirror can be used to create a camera similar to a pinhole camera. Instead of passing through a tiny hole, the light to form the image is reflected by a small disc-shaped mirror (with a diameter the same as that of a pinhole; about 0.15 mm - 0.4 mm). One advantage is that a pinhead mirror can be swivelled to scan a scene or project a scene to different locations. Pinhead mirror technology was protected under US patent 4,948,211 - "Method and Apparatus for Optical Imaging Using a Small, Flat Reflecting Surface" until the patent expired in 2009. ==References==
* TH Nilsson (1986) "The Pinhead mirror: A previously undiscovered imaging device?" ''Applied Optics'', 25, 2863-2864 * TH Nilsson (1987) "Pinhead mirrors: imaging, computing and the nature of light" ''Pinhole Journal'', 4, 2-5.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pinhead mirror」の詳細全文を読む
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