2017-07-27T22:01:56+03:00[Europe/Moscow] en true Astrograph, Remote camera, Snoot, Maser, Optical microscope, Diffraction grating, Lidar, Photodiode, Stroboscope, Glasstron, Binoculars, Optical amplifier, Photoresistor, Light table, Video camera, Dynameter, Silver halide, Fiberscope, Phototube, Optical flat, Laser beam profiler flashcards
Optical devices

Optical devices

  • Astrograph
    An astrograph (astrographic camera) is a telescope designed for the sole purpose of astrophotography.
  • Remote camera
    A remote camera is a camera placed by a photographer in areas where the photographer generally cannot be or for selfies.
  • Snoot
    In photography, a snoot is a tube or similar object that fits over a studio light or portable flash and allows the photographer to control the direction and radius of the light beam.
  • Maser
    A maser (/ˈmeɪzər/, an acronym for "microwave amplification by stimulated emission of radiation") is a device that produces coherent electromagnetic waves through amplification by stimulated emission.
  • Optical microscope
    The optical microscope, often referred to as light microscope, is a type of microscope which uses visible light and a system of lenses to magnify images of small samples.
  • Diffraction grating
    In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions.
  • Lidar
    Lidar (also called LIDAR, LiDAR, and LADAR) is a surveying method that measures distance to a target by illuminating that target with a laser light.
  • Photodiode
    A photodiode is a semiconductor device that converts light into current.
  • Stroboscope
    A stroboscope also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary.
  • Glasstron
    The Sony Glasstron was a family of portable head-mounted displays, first released in 1996 with the model PLM-50.
  • Binoculars
    Binoculars or field glasses are binocular telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.
  • Optical amplifier
    An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal.
  • Photoresistor
    A photoresistor (or light-dependent resistor, LDR, or photocell) is a light-controlled variable resistor.
  • Light table
    A light table is a viewing device that is used to review photographic film or artwork placed on top of it.
  • Video camera
    A video camera is a camera used for electronic motion picture acquisition (as opposed to a movie camera, which records images on film), initially developed for the television industry but now common in other applications as well.
  • Dynameter
    A dynameter is an instrument that measures the magnification of a telescope.
  • Silver halide
    A silver halide (or silver salt) is one of the compounds which are formed between silver and one of the halogens – silver bromide (AgBr), chloride (AgCl), iodide (AgI), and three forms of silver fluoride.
  • Fiberscope
    A fiberscope is a flexible fiber-optic bundle with an eyepiece on one end and a lens on the other that is used to examine and inspect small, difficult-to-reach places such as the insides of machines, locks, and the human body.
  • Phototube
    A phototube or photoelectric cell is a type of gas-filled or vacuum tube that is sensitive to light.
  • Optical flat
    An optical flat is an optical-grade piece of glass lapped and polished to be extremely flat on one or both sides, usually within a few millionths of an inch (about 25 nanometres).
  • Laser beam profiler
    A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path.