light-sensitive element
1light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …
2light-beam pickup — noun : a phonograph pickup using a beam of light to couple the stylus to a light sensitive converting element …
3Light Amplification by Stimulated Emission of Radiation — Dieser Artikel wurde aufgrund von inhaltlichen Mängeln auf der Qualitätssicherungsseite des Portals Physik eingetragen. Dies geschieht, um die Qualität der Artikel aus dem Themengebiet Physik auf ein akzeptables Niveau zu bringen. Dabei werden… …
4rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
5Period 2 element — A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the chemical elements. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the… …
6chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
7Position sensitive device — A Position Sensitive Device and/or Position Sensitive Detector (PSD) is an optical position sensor (OPS), that can measure a position of a light spot in one or two dimensions on a sensor surface. Contents 1 Principles 1.1 Isotropic Sensors 1.2… …
8smoke detector — an electronic fire alarm that is activated by the presence of smoke. Also called smoke alarm. [1925 30] * * * device used to warn occupants of a building of the presence of a fire before it reaches a rapidly spreading stage and inhibits… …
9photosite — noun Individual light sensitive element in a digital image sensor …
10eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
