hot-cathode lamp
1Hot cathode — is also a name for a hot filament ionization gauge, a vacuum measuring device.In vacuum tubes, a hot cathode is a cathode electrode which emits electrons due to thermionic emission. ( Cf. cold cathodes, where field emission is used and which do… …
2Cold cathode — This article is about light sources and indicators. For cold cathode ion sources, see Ion source. CCFL redirects here. For other uses, see CCFL (disambiguation). Cold cathode fluorescent lamp A cold cathode is a cathode used within nixie tubes,… …
3Fluorescent lamp — A fluorescent lamp or fluorescent tube is a gas discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.Unlike… …
4glow lamp — noun a gas discharge tube with a hot cathode; used in stroboscopes • Hypernyms: ↑gas discharge tube * * * noun : a gas discharge hot cathode electric lamp in which most of the light proceeds from the cathode glow and which is used especially in… …
5Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
6Gas-filled tube — See also: Gas discharge lamp A gas filled tube, also known as a discharge tube, is an arrangement of electrodes in a gas within an insulating, temperature resistant envelope. Although the envelope is typically glass, power tubes often use… …
7Thermionic emission — Closeup of the filament on a low pressure mercury gas discharge lamp showing white thermionic emission mix coating on the central portion of the coil. Typically made of a mixture of barium, strontium and calcium oxides, the coating is sputtered… …
8Ecran a cristaux liquides — Écran à cristaux liquides Pour les articles homonymes, voir ACL et LCD. Dans un Tablet PC …
9Liquid Crystal Display — Écran à cristaux liquides Pour les articles homonymes, voir ACL et LCD. Dans un Tablet PC …
10Liquid cristal display — Écran à cristaux liquides Pour les articles homonymes, voir ACL et LCD. Dans un Tablet PC …
