As a Spherical Lenses Manufacturer , share with you. It is simple and relatively inexpensive to manufacture a lens whose surface is part of a plane or part of a sphere. Such a lens cannot focus light well; the lack of focus is spherical aberration. Spherical aberration is particularly prominent in large, fast (bright) lenses. This lack of concentration is manifested in various forms of ambiguity. This problem can be corrected by placing other lenses in front of and behind the lens. It can also be corrected by changing the shape of the lens surface (making them aspherical), but this tends to be more difficult and expensive. The aspherical is not. Custom Silicon Spherical Lenses When other lens elements are added as corrections, they increase the amount of glare and reduce the contrast of the photo, and increase the size and weight of the lens. They may also change color slightly. Therefore, an aspheric element usually signals that the lens is finished to produce a contrasti...
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