Monochromatic — Mon o*chro*mat ic, a. [Cf. F. monochromatique. See {Monochrome}.] Consisting of one color, or presenting rays of light of one color only. [1913 Webster] {Monochromatic lamp} (Opt.),a lamp whose flame yields rays of some one homogenous light. It… … The Collaborative International Dictionary of English
LED lamp — An LED lamp (LED light bulb) is a solid state lamp that uses light emitting diodes (LEDs) as the source of light. The LEDs involved may be conventional semiconductor light emitting diodes, organic LEDs (OLED), or polymer light emitting diodes… … Wikipedia
Sodium vapor lamp — A sodium vapor lamp is a gas discharge lamp which uses sodium in an excited state to produce light. There are two varieties of such lamps: low pressure and high pressure . Low pressure sodium Low pressure sodium (LPS) lamps, also known as sodium… … Wikipedia
Gas-discharge lamp — See also: Gas filled tube Germicidal lamps are simple low pressure mercury vapor discharges in a fused quartz envelope. Gas discharge lamps are a family of artificial light sources that generate light by sending an electrical discharge through an … Wikipedia
High-intensity discharge lamp — A High intensity discharge (HID) lamp is a type of electrical lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina tube. This tube is filled… … Wikipedia
Xenon flash lamp — A xenon flash lamp is an electric glow discharge lamp designed to produce extremely intense, incoherent, full spectrum white light for very short durations. Construction The lamp comprises a sealed tube, often made of fused quartz, which is… … Wikipedia
monochromatique — [ mɔnɔkrɔmatik ] adj. • 1838; de mono et chromatique 1 ♦ Vieilli Monochrome. 2 ♦ Mod. Phys. Qui ne contient qu une fréquence ou une longueur d onde bien déterminée. Le laser émet une radiation monochromatique. ● monochromatique … Encyclopédie Universelle
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium
colour — /kul euhr/, n., adj. v.t., v.i. Chiefly Brit. color. Usage. See or1. * * * I Aspect of any object that may be described in terms of hue, brightness, and saturation. It is associated with the visible wavelengths of electromagnetic radiation, which … Universalium
Street light — A street light, lamppost, street lamp, light standard or lamp standard, is a raised source of light on the edge of a road, turned on or lit at a certain time every night. Modern lamps may also have light sensitive photocells to turn them on at… … Wikipedia