aspheric
Definition
- Adjective:
- Varying slightly from a perfectly spherical shape: Describes a surface or lens whose curvature is not perfectly spherical, often designed to correct optical aberrations.
Usage Examples
- Adjective:
- Modern high-performance camera lenses often use aspheric elements to reduce distortion.
- The contact lens was specially designed with an aspheric surface to provide a wider field of clear vision.
Advanced Usage
- Technical/Engineering Context: In optics and ophthalmology, "aspheric" precisely describes a surface profile that deviates from a sphere to improve performance.
- The engineer specified an aspheric mirror for the telescope to eliminate spherical aberration.
Variants and Related Words
- Aspherical (adj): A variant form with identical meaning.
- The terms aspheric and aspherical are often used interchangeably in lens design.
- Asphericity (n): The degree or quality of being aspheric.
- The asphericity of the surface was measured with high precision.
Synonyms
- Non-spherical: Not having a perfectly round, spherical shape.
- Aplanatic: Corrected for spherical aberration (a specific type of aspheric design in optics).
Antonyms
- Spherical: Having the shape of a sphere; perfectly round.
Adjective
-
varying slightly from a perfectly spherical shape
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