incandescent source
61Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …
62Color rendering index — Emitted light spectrum determines the color rendering index of the lamp. Color render …
63Lampe électrique — Pour les articles homonymes, voir Lampe (homonymie). Une lampe électrique est un objet destiné à convertir de l énergie électrique : l électricité en énergie électromagnétique lumière. Depuis l origine, les lampes électriques sont… …
64Sulfur lamp — The sulfur lamp (also sulphur lamp) is a highly efficient full spectrum electrodeless lighting system whose light is generated by sulfur plasma that has been excited by microwave radiation. The technology was developed in the early 1990s, but,… …
65Light fixture — This article is about architectural light fixtures. For stage lighting, see Stage lighting instrument. Many various light fixtures A light fixture, light fitting, or luminaire is an electrical device used to create artificial light and/or… …
66LUMIÈRE - Optique — Il est difficile de séparer nettement les notions de lumière et d’optique. La lumière, évidence sensible, apparaît communément comme première par rapport à l’optique, science dont l’objet est l’étude de la lumière et qui englobe toutes les… …
67feu — 1. feu [ fø ] n. m. • XIIe; fou IXe; lat. focus « foyer, feu » I ♦ 1 ♦ LE FEU : dégagement d énergie calorifique et de lumière accompagnant la combustion vive. ⇒ combustion, crémation, ignition, incandescence; flamme; pyro . Les Anciens… …
68Backlight — LCD, both unlit and with electroluminescent backlight switched on.A backlight is the form of illumination used in a liquid crystal display (LCD). Backlights differ from frontlights because they illuminate the LCD from the side or back, whereas… …
69Mechanically powered flashlight — A mechanically powered flashlight is one of several varieties of flashlight that are powered by electricity generated by the muscle power of the user, so they do not need replacement of batteries, or recharging from an electrical source. The… …
70Emergency vehicle lighting — refers to any of several visual warning devices, which may be known as light bars or beacons, fitted to a vehicle and used when the driver wishes to convey to other road users the urgency of their journey, to provide additional warning of a… …
