aspheric

aspheric Definition

aspher·ic (ā′sfir′ik)

adjective

designating or of a lens or mirror made so that it is not perfectly spherical, as to minimize spherical aberration

aspheric Usage Examples

Modifies a noun

lens: At the heart of each magnifier is an aspheric lens designed to give a sharp, distortion free image.
element: The 18x optical zoom lens has an aspheric element, which gives sharp, high contrast footage across the image.
design: Aspheric designs, principles of fitting, fluorescein patterns, photorefractive surgery, diabetes and red eye.
departure: The IR3 can directly handle some 30 waves ( at 10.6 microns ) of aspheric departure i.e. with no null lens.
surface: Results of form control on aspheric surfaces are presented, with an interpretation in terms of spatial frequencies.

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