Aspheric lenses maintain constant focal length or very high NA, avoiding the need for multiple elements to correct for spherical aberration. This simplifies system design by reducing weight and ...

Aspheric lenses have at least one surface that is not a true sphere. The aspheric profile used is frequently a conic surface of revolution about the lens axis, matched in design to the shape of the ...

Radius and curvature are reciprocal to one another. Figure 7.1a shows a plano convex lens element with a spherical radius, imaging an axial point from infinity. The spherical aberration is quite ...

Asphera specializes in aspherical lenses which allow a wider field of view than a traditional lens. Aspheres are common in imaging applications today because one single asphere can replace a multilens ...

Optical Surfaces Ltd is a leading producer of large diameter aspheric lenses used as critical focusing optics in high-power laser research. Large diameter Aspheric lens. Image Credit: Optical ...

(From Tamron lens literature) The optical system of the new SP AF 14mm F/2.8 Aspherical (IF) lens, composed of 14 elements in 12 groups, includes two Hybrid Aspherical lens elements. These large ...