Global Aspherical Lense Market 2017 : By Manufacturers Nikon, Canon, Panasonic, HOYA
Aspherical lenses are any lenses whose surface angles and profiles are neither part of a sphere nor part of a cylinder. Conventional lenses have the same curve across their entire surface, like a ping-pong ball. Aspherical lenses accomplish the same amount of refraction but are flatter and slimmer.
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