Chromatic aberration is an optical phenomenon that occurs when different wavelengths (colors) of light are refracted by a lens or optical system, leading to a failure to focus all colors to the same convergence point. This results in colored fringes...

An aplanatic surface is an optical surface that is specifically designed or shaped to minimize spherical aberration and...

A lens designed for projection of color transparencies.

A theoretical, ideal lens capable of producing perfect images. Used as a lens design and analysis tool to image collimated...

A two-mirror lens design used in astronomical telescopes, the primary being a parabola, the secondary a smaller hyperbola....

A fish-eye lens designed to photograph cloud formations over the entire visible sky.

Computerized lens design algorithm that permits the lens MTF characteristic to be included and controlled during the...

Spherical aberration is an optical aberration that occurs when light rays passing through a lens or curved optical surface...

A lens blank is a piece of optical material in a raw, unfinished state, typically in the form of a disk or block, from which...

An infrared lens is an optical component specifically designed and optimized for transmitting, focusing, or manipulating...

Dispersion refers to the phenomenon where different wavelengths (colors) of light travel at different speeds when passing...

Aplanatic points refer to specific points in an optical system where certain aberrations, such as spherical aberration or...

A machine vision lens is a specialized optical lens designed for use in machine vision systems, which are used for automated...

A precision lens designed to convert the plane wavefront output of an interferometer to a spherical wavefront for the...

The area of optics in which the propagation of light is described by geometrical lines (or rays) governed by Fermat's...

An apochromat, often referred to as an apochromatic lens or apochromatic objective, is a type of optical system designed to...

1. With respect to angular subtense, a source of light, such as a star, that is very small. In a lab, a point source may be...

A method used to approximate the values of the homogeneous second derivatives at each iteration in the course of lens design...

A wide-angle lens is a type of camera lens that has a shorter focal length than a standard or normal lens, allowing it to...