three-lens optical system
11Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… …
12Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
13Lens (anatomy) — Crystalline lens (anatomy) Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens …
14Lens mount — A lens mount is an interface mechanical and often also electrical between a photographic camera body and a lens. It is confined to cameras where the body allows interchangeable lenses, most usually the single lens reflex type or any movie camera… …
15Optical disc drive — A CD/DVD ROM Drive A Blu ray (BD RE DL) writer tray in a Sony Vaio E series laptop …
16Three-dimensional integrated circuit — In electronics, a three dimensional integrated circuit (3D IC, 3D IC, or 3 D IC) is a chip in which two or more layers of active electronic components are integrated both vertically and horizontally into a single circuit. The semiconductor… …
17Optical computing — Today s computers use the movement of electrons in and out of transistors to do logic. Optical or Photonic computing is intended to use photons or light particles, produced by lasers or diodes, in place of electrons. Compared to electrons,… …
18History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …
19Micro Four Thirds system — The Micro Four Thirds system (MFT) is a standard created by Olympus and Panasonic, and announced on August 5, 2008,[1] for mirrorless interchangeable lens digital cameras and camcorders[2] design and development. However, unlike the preceding… …
20Zoom lens — Nikkor 28 200 mm zoom lens, extended to 200 mm at left and collapsed to 28 mm focal length at right A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed… …
