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  • Term: red led
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    Related Terms: chartered financial, wilson deep red irons, tailored clothing, retired cherished teddies, registered ecc ram, reducers, redfield binoculars, red lion inn stockbridge ma, predictive index survey, powered subs

    red led!


    red led

    Comprehensive Analysis



    1) "Red" -- As to red led

    1red
    Pronunciation: 'red
    Function: adjective
    Inflected Form(s): red·der; red·dest
    Etymology: Middle English, from Old English rEad; akin to Old High German rOt red, Latin ruber & rufus, Greek erythros
    1 a : of the color red b : having red as a distinguishing color
    2 a (1) : flushed especially with anger or embarrassment (2) : RUDDY, FLORID (3) : being or having skin of a coppery hue b : BLOODSHOT <eyes red from crying> c : being in the color range between a moderate orange and russet or bay d : tinged with red : REDDISH
    3 : heated to redness : GLOWING
    4 a : inciting or endorsing radical social or political change especially by force b often capitalized : COMMUNIST c often capitalized : of or relating to a communist country and especially to the Union of Soviet Socialist Republics
    - red in tooth and claw : characterized by or displaying brutal emotion or violent behavior
    Pronunciation Symbols

    Red
    — Color coordinates —
    Hex triplet #FF0000
    RGBa (r, g, b) (255, 0, 0)
    HSV (h, s, v) (0°, 100%, 100%)
    a: Normalized to [0–255] (byte)

    Red may be any of a number of similar colours at the lowest frequencies of light discernible by the human eye. Red is one of the three primary colours of visible light, the others being green and blue. Red light has a wavelength range of roughly 625–760 nm. Frequencies lower than this are called infrared, or below red and cannot be seen by human eyes, although some infrared frequencies can be felt as heat. Red is associated with anger, death, blood, passion and love.

    Red, a.k.a. green, is an additive primary colour of light, complementary to cyan. It was once considered red; however, the colors cyan, magenta and yellow are now known to be closer to the true subtractive primary colors detected by the eye, and are used in modern color printing.

    Artificial red poppies.

    One common use of red as an additive primary colour is in the RGB colour model. Because "red" is not by itself standardised, colour mixtures based on red are not exact specifications of colour either. In order to produce exact colors the colour red needs to be defined in terms of an absolute colour space such as sRGB. As used in computer monitors and television screens, red is very variable, but some systems may a..."



    2) "Led" -- As to red led

    1lead
    Pronunciation: 'lEd
    Function: verb
    Inflected Form(s): led /'led/; lead·ing
    Etymology: Middle English leden, from Old English l[AE]dan; akin to Old High German leiten to lead, Old English lIthan to go
    transitive verb
    1 a : to guide on a way especially by going in advance b : to direct on a course or in a direction c : to serve as a channel for <a pipe leads water to the house>
    2 : to go through : LIVE <lead a quiet life>
    3 a (1) : to direct the operations, activity, or performance of <lead an orchestra> (2) : to have charge of <lead a campaign> (3) : to suggest to (a witness) the answer desired by asking leading questions b (1) : to go at the head of <lead a parade> (2) : to be first in or among <lead the league> (3) : to have a margin over <led his opponent>
    4 : to bring to some conclusion or condition <led to believe otherwise>
    5 : to begin play with <lead trumps>
    6 a : to aim in front of (a moving object) <lead a duck> b : to pass a ball or puck just in front of (a moving teammate)
    intransitive verb
    1 a : to guide someone or something along a way b : to lie, run, or open in a specified place or direction <path leads uphill> c : to guide a dance partner through the steps of a dance
    2 a : to be first b (1) : BEGIN, OPEN (2) : to play the first card of a trick, round, or game
    3 : to tend
    Blue, green and red LEDs.

    A light-emitting diode (LED) is a semiconductor device that emits incoherent narrow-spectrum light when electrically biased in the forward direction. This effect is a form of electroluminescence. LEDs are small extended sources with extra optics added to the chip, which emit a complex intensity spatial distribution [1]. The color of the emitted light depends on the composition and condition of the semiconducting material used, and can be infrared, visible or near-ultraviolet. Rubin Braunstein of the Radio Corporation of America first reported on infrared emission from gallium arsenide (GaAs) and other semiconductor alloys in 1955. Experimenters at Texas Instruments, Bob Biard [2] and Gary Pittman, found in 1961 that gallium arsenide gave off infrared (invisible) light when electric current was applied. Biard and Pittman were able to establish the priority of their work and received the patent for the infrared light-emitting diode. Nick Holonyak Jr. of the General Electric Company developed the first practical visible-spectrum LED in 1962.[3]

    • 1 LED technology
      • 1.1 Physical function
      • 1.2 Ultraviolet, Blue and white LEDs
      • 1.3 Organic light-emitting diodes (OLEDs)
      • 1.4 Operational parameters and efficiency
      • 1.5 Failure modes
    • 2 Considerations in use
      • 2.1 Advantages of using LEDs
      • 2.2 Disadvantages of using LEDs
    • 3 LED applications
      • 3.1 List of LED applications
      • 3.2 Illumination applications
    • 4 History