Betekenis van:
light-emitting diode

light-emitting diode
Zelfstandig naamwoord
    • diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used

    Synoniemen

    Hyperoniemen

    Hyponiemen


    Voorbeeldzinnen

    1. Ballasts, halogen convertors and transformers and Light Emitting Diode (LED) drivers are examples of light source control gears.
    2. ‘light emitting diode’ or ‘LED’ means a solid state device embodying a p-n junction, emitting optical radiation when excited by an electric current;
    3. the point sources of light-emitting-diode systems shall have a minimum peak intensity of 35 mcd.
    4. ‘Light-emitting diode (LED) light source’ means a light source where the element for visible radiation is one or more solid state junctions producing injection-luminescence/fluorescence;
    5. The apparatus shall be equipped with a high-definition Sydel probe 8 mm in diameter, a light-emitting infra-red diode (Honeywell) and two light sensors (Honeywell).
    6. The apparatus shall be equipped with a high-definition Sydel probe 8 mm in width, a light-emitting infra-red diode (Honeywell) and two light sensors (Honeywell).
    7. The light source must be an incandescent lamp with a colour temperature in the range of 2800 to 3250 K or a green light emitting diode (LED) with a spectral peak between 550 and 570 nm.
    8. The light source shall be an incandescent lamp with a colour temperature in the range of 2800 to 3250 K or a green light-emitting diode (LED) with a spectral peak between 550 and 570 nm.
    9. The light source shall be an incandescent lamp with a colour temperature in the range of 2800 to 3250 K or a green light emitting diode (LED) with a spectral peak between 550 and 570 nm.
    10. The apparatus shall be equipped with a high-definition Sydel probe 8 mm in width, a light-emitting infra-red diode (Honeywell) and two light sensors (Honeywell). The operating distance is between 0 and 105 mm.
    11. The light source shall be an incandescent lamp with a colour temperature in the range 2800 to 3250 K or a green light emitting diode (LED) with a spectral peak between 550 and 570 nm.
    12. The presence of a scanner that uses cold cathode fluorescent lamp (CCFL) technology or a technology other than CCFL, such as light-emitting diode (LED), halogen, hot-cathode fluorescent tube (HCFT), xenon, or tubular fluorescent (TL) technologies.
    13. ‘Light source control gear’ means one or more components between the supply and one or more light sources which may serve to transform the supply voltage, limit the current of the lamp(s) to the required value, provide starting voltage and preheating current, prevent cold starting, correct power factor or reduce radio interference. Ballasts, halogen convertors and transformers and Light Emitting Diode (LED) drivers are examples of light source control gears.
    14. Optical unit consisting of a laser diode with one photodiode, emitting light of a nominal wavelength of 780 nm, contained in a housing with a diameter of not more than 10 mm and a height of not more than 9 mm, with not more than 10 connections
    15. Unit consisting of two or more light emitting diode chips operating at a typical wavelength of 450 nm or more but not exceeding 660 nm, contained in a lead frame housing having a circular opening whose exterior dimensions without fittings — do not exceed 4 × 4 mm