incandescent display
21Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
22Christmas lighting technology — has been subject to considerable development and variation since the replacement of candles by electric lights. Contents 1 Incandescent Christmas Lights 2 LEDs 3 Fiber optic lights 4 B …
23Color temperature — The CIE 1931 x,y chromaticity space, also showing the chromaticities of black body light sources of various temperatures (Planckian locus), and lines of constant correlated color temperature. Color temperature is a characteristic of visible light …
24Vacuum 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… …
25Traffic light — The traffic light, also known as traffic signal, stop light, traffic lamp, stop and go lights, robot or semaphore, is a signaling device positioned at a road intersection, pedestrian crossing, or other location. Its purpose is to indicate, using… …
26North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …
27Motorola Bag Phone — The Motorola Bag Phone was a transportable cellular telephone manufactured by Motorola, inc. from 1992 to 2000. Contents 1 Description 2 End of Service Life and Legacy 3 Styles and model list …
28Machine vision glossary — Common definitions related to the machine vision field.Compiled for application on the Society of Manufacturing Engineers interest area.General related fields *Machine vision *Computer vision *Image processing *Signal processing NOTOC 0 9*1394.… …
29Emergency 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… …
30Backlight — 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… …
