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Aspheric Lenses
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  • aspheric lens A lens element in which at least one face is shaped to a surface of revolution about the lens axis, including conic sections but excluding a sphere.
  • aspheric Not spherical; an optical element having one or more surfaces that are not spherical. The spherical surface of a lens may be slightly altered so as to reduce spherical aberration. Aspheric surfaces are frequently, but not necessarily, surfaces of...
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