Menene LED? Yana haskaka abubuwan da ka sayi a duk lokacin
LEDs ne a ko'ina; akwai ma dama dama cewa kana karatun wannan labarin game da LEDs ta hasken da aka fitar daga ɗaya ko fiye da LEDs. Don haka, menene hekken ya zama jagora ta wata hanya? Kuna kusa da gano.
Dama Definition
LED tsaye ga Light-Emitting Diode, na'urar lantarki da ke kunshe da nau'o'in nau'o'in kayan abu guda biyu. Hakazalika game da kayan aikin semiconductor da aka yi amfani da shi a wasu na'urorin kwamfuta, irin su RAM , masu sarrafawa, da kuma transistors, diodes su ne na'urorin da suka bada izinin wutar lantarki ta faru a daya hanya.
Hakan yana iya yin haka: Yana kaddamar da wutar lantarki a wata hanya yayin bar shi yana motsawa a cikin ɗayan. Lokacin da wutar lantarki a cikin hanyar electrons ke tafiya a tsakanin jigon tsakanin nau'o'i biyu na kayan semiconductor, an ba da makamashi ta hanyar haske.
Tarihin Lura
Kyauta don samfurin farko na LED shine Oleg Losev, marubucin Rasha wanda ya nuna LED a shekara ta 1927. Ya yi kusan kusan shekaru hudu kafin a yi amfani da sabon abu don amfani, duk da haka.
Lissafi sun fara bayyana a aikace-aikace na kasuwanni a 1962, lokacin da Texas Instruments ta samo haske wanda ya ba da haske a cikin jakar infrared. Wadannan mabudin farko sun kasance da farko a cikin na'urori masu nisa, irin su talabijin na telebijin na farko.
Likitan haske na farko da aka gani ya kuma bayyana ta a shekarar 1962, yana ba da haske mai haske amma bayyane. Wani shekaru goma zai wuce kafin haske ya kara, kuma an kara launuka masu launin launin fata da launin jan-orange.
Lissafi sun ƙare a 1976 tare da gabatar da samfurori masu girma da kuma samfurin da za a iya amfani dashi a aikace-aikace iri-iri, ciki har da sadarwa da kuma alamomi a cikin kayan aiki. Daga bisani, ana amfani da LED a cikin masu lissafi kamar nunin lambobi.
Blue, Red, Yellow, Red-Orange da Green LED haske Launi
Lissafi a cikin ƙarshen 70s da farkon 80s sun iyakance ne kawai zuwa wasu launuka; jan, rawaya, ja-orange, da kuma kore su ne manyan launuka. Duk da yake yana yiwuwa a cikin Lab don samar da LEDs tare da launi daban-daban, da kudin samarwa tara adadin da LED launi bakan daga zama taro-samar.
An yi tunanin cewa wani LED mai haskakawa a cikin bakan bakanan zai ba da damar yin amfani da LED a cikakkun launi. Binciken ya kasance a kan kasuwancin kasuwanci wanda zai iya zama mai haske blue LED, wanda, lokacin da aka haɗa tare da samfurin red da rawaya LED, zai iya samar da launuka masu launin fadi. Na farko high blue haske LED sanya ta halarta a karon a 1994. High-iko da high-dace blue LEDs bayyana a 'yan shekaru daga baya.
Amma ra'ayin yin amfani da LEDs don cikakken nuna bidiyon bai taba isa ba har sai sabon abu na farin LED, wanda ya faru ba da daɗewa ba bayan yawancin samfurin blue LEDs ya bayyana.
Kodayake zaka iya ganin alamar TV ta LED ko LED, yawancin wadannan nau'ikan nuni suna amfani da LCD (Liquid Crystal Display) don ainihin nuni, kuma amfani da LED don haskaka LCD . Ba haka ba ne in faɗi ainihin bayyane na LED wanda ba a samuwa a cikin kewayawa da talabijin ta amfani da fasahar OLED (Organic LED) ; su kawai sukan kasance masu daraja da kuma wuyar ginawa a manyan Sikeli. Amma yayin da tsarin sarrafawa ya ci gaba da girma, haka ne hasken wutar lantarki.
Yana amfani da LEDs
LED fasaha ci gaba da girma da kuma m kewayon amfani da LEDs riga an gano, ciki har da:
- Ƙananan LED masu amfani da su don sarrafa kayan aiki. Bincika wannan tashar TV; chances akwai LED infrared a ƙarshen kasuwanci na nesa.
- Ana amfani da LEDs a matsayin alamar hasken wuta a kayan aiki da kayan kayan aiki. A wani lokaci, ana amfani da hasken wutar lantarki da ƙananan wuta. Yanzu LEDs, wanda sun fi dacewa, suna da rai mai tsawo, kuma basu da tsada sosai, sun dauki wannan amfani.
- Ana amfani da alamomi a nuni, ciki har da alamun alphanumeric da aka gani a cikin komai daga farkon masu kirkiro zuwa wasan kwaikwayo, alamun tallan, da kuma sufuri. Kuma kar ka manta cewa mai yiwuwa wayarka tana amfani da LED don haskaka nuni.
- Kuma ba shakka, ba za mu iya mantawa da hasken ba; LEDs suna da kyau a kan hanyar da zasu sake maye gurbin kwararan fitila wanda bai dace da Thomas Edison ba. A gefen hanyar, masu tsabta a cikin gidaje da wuraren kasuwanci suna ganin rashin amfani da ƙasa.
LEDs za su ci gaba da amfani da su a cikin nau'o'in samfurori iri iri, kuma ana amfani da sabon amfani a duk lokacin.