A cylindrical lens is an optical component that has different curvatures along its two orthogonal axes, resulting in a shape resembling a cylinder. Unlike spherical lenses, which have the same curvature in all directions, cylindrical lenses focus or...

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

An optical instrument consisting of a well- corrected objective lens or mirror with a light source and or object/image (i.e....

An optical system with different focal lengths or magnification levels in perpendicular planes to the optical axis.

A metalens, short for "metasurface lens," is a type of optical lens that uses nanostructured materials to manipulate light...

A small instrument containing a picture support and a pair of magnifying lenses so arranged that the left eye sees only the...

A lens with internally adjustable elements to produce a range of focal lengths. Unlike a true zoom lens, a multifocal lens...

In optics, a motion controller refers to a device or system that precisely controls the movement of optical components, such...

The focal length of a lens is the distance between the lens's optical center (or principal point) and the image sensor or...

An ocular having two planoconvex lenses that are formed from similar glass and that are separated by a space equal to half...

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...

A digital camera is a device that captures and records still images or video in digital format. Unlike traditional film...

Seidel aberrations refer to a set of monochromatic aberrations in optical systems, named after the German mathematician and...

Two lenses, separated by a distance equal to the sum of their focal lengths, and retroreflecting mirror assemblies, one of...

A lens that has a mount, usually bayonet or screw type in design, that can be used on a camera in place of lenses with the...