modulated light beam
11Retroreflector — Infobox Laboratory equipment name = Retroreflector caption = A gold corner cube retroreflector acronym = other names = uses = Distance measurement by optical delay line inventor = manufacturer = model = related = A retroreflector (sometimes… …
12Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
13Acousto-optics — is a branch of physics that studies the interactions between sound waves and light waves, especially the diffraction of laser light by ultrasound or sound in general.IntroductionOptics has had a very long and full history, from ancient Greece,… …
14Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
15Holography — (from the Greek, ὅλος hólos whole + γραφή grafē writing, drawing) is a technique that allows the light scattered from an object to be recorded and later reconstructed so that it appears as if the object is in the same position relative to the… …
16Microwave — This article is about the electromagnetic wave. For the cooking appliance, see Microwave oven. For other uses, see Microwaves (disambiguation). A microwave telecommunications tower on Wrights Hill in Wellington, New Zealand Microwaves, a subset… …
17Laser video projector — A laser video projector takes a video signal and modulates a laser beam in order to project a raster based image. The systems work either by scanning the entire picture a dot at a time and modulating the laser directly at high frequency, much… …
18Laser projectors — A laser projector is a collection of lasers, mirrors, galvanometer scanners and other optical components housed in an enclosure. A laser projector can contain one laser light source for single color projection or possibly 3 sources for RGB (red,… …
19quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …
20Mechanical television — This schematic shows the circular paths traced by the holes in a Nipkow disk. Mechanical television (also called televisor) was a broadcast television system that used mechanical or electromechanical devices to capture and display video images.… …
