OPTICAL LENS ACCESSORY FOR WIDE-ANGLE PHOTOGRAPHY
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United States of America Patent
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Oct 19, 2016
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Mar 23, 2016
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Abstract
An optical lens accessory for wide-angle photography is provided. The optical lens accessory includes: an optical device having a wide-angle lens. The optical device is configured to frame a view with a range of viewing angle greater than a range of viewing angle of the camera device and let framed light into the camera device; a housing device positioned outside the optical device and causing no interference to the range of viewing angle of the wide-angle lens, the housing device is configured to support the optical device, and to isolate the framed light from external stray light, thereby preventing the external stray light from interfering with an optical path of the framed light; and a fixture device configured to attach the optical lens accessory to the camera device of the terminal device while causing no interference to the range of viewing angle of the wide-angle lens.
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