LED diody

Posted by: admin  :  Category: LED, Témata celkově

Co je to LED dioda? LED dioda je polovodičová součástka, která vyzařuje světlo. Kromě toho že svítí se chová jako normální dioda – usměrňuje proud. Pro tuto schopnost však LED diody nevyužíváme. Jejich doménou je zkrátka svícení .LED diody máme různých barev. Dříve např. byly jen červené, zelené a žluté. Pak se skupina LED diod rozrostla o další barvy – modrou a bílou. ;ha d, Aby LED diody funkoval, pořebují zpravidla předřadný odpor, aby se omezil jejich proud. U běžných LED světel je proud cca 20 mA. Existují ale i vysokovýkonné typy – např. LED do světel automobilů, LED diody do svítilen. العاب حصان سباق U těchto LED diod roste potom výrazněji proud. قرعة يورو 2022 Výhoda LED diody je nejen ve spotřebě, ale i v účinném směřování světla na osvětlovanou plochu. Máme LED diody s různými vyzařovacími úhly. Některé LED diody jsou úzce fokusované např jen na 5 stupňů a dosahují slušného osvětlení v místě dopadu světla. Jiné LED diody poskytují zase úhel např. 60 stupňů – ty jsou zase vidět i z boku. Svítivost LED diod neustále roste a současně LED pronikají tam, kde by jejich aplikace byla před lety nemožná.

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