Menene LED?
LED yana nufin "Light Emitting Diode." Na'urar semiconductor ce da ke fitar da haske lokacin da wutar lantarki ta wuce ta. Ana amfani da LEDs a cikin aikace-aikace masu yawa, gami da haske, nuni, alamu, da ƙari. An san su da ƙarfin kuzarinsu, dorewa, da tsawon rayuwa idan aka kwatanta da fitilu na gargajiya ko fitilu masu kyalli. LEDs sun zo da launuka daban-daban kuma ana iya amfani da su a cikin nau'ikan samfura daban-daban, daga fitilun masu nuni zuwa ga nagartaccen nunin lantarki da na'urorin kunna wuta.
Ka'idar hasken LED
Lokacin da electrons da ramukan da ke cikin mahaɗin PN na diode mai fitar da haske suka sake haɗuwa, electrons suna canzawa daga matakin makamashi mai girma zuwa ƙananan makamashi, kuma electrons suna sakin makamashi mai yawa a cikin nau'i na photons (electromagnetic waves), wanda ya haifar da electroluminescence. Launi na haske yana da alaƙa da abubuwan abubuwan da ke tattare da tushe. Babban abubuwan da ke tattare da su kamar gallium arsenide diode yana fitar da haske ja, gallium phosphide diode yana fitar da haske kore, siliki carbide diode yana fitar da hasken rawaya, gallium nitride diode yana fitar da haske shuɗi.
Kwatancen tushen haske
LED: high electro-optical hira yadda ya dace (kusan 60%), kore da muhalli abokantaka, tsawon rai (har zuwa 100,000 hours), low aiki ƙarfin lantarki (game da 3V), babu asarar rai bayan maimaita sauyawa, kananan size, low zafi tsara , Babban haske, ƙarfi da ɗorewa, Sauƙi don dim, launuka daban-daban, katako mai ƙarfi da kwanciyar hankali, babu jinkiri a farawa.
Fitilar wuta: ƙarancin ƙarfin jujjuyawar wutar lantarki-kimanin 10%), gajeriyar rayuwa (kimanin sa'o'i 1000), zazzabi mai zafi mai zafi, launi ɗaya da ƙarancin zafin launi.
Fluorescent fitilu: low electro-Optical hira yadda ya dace (kimanin 30%), cutarwa ga yanayi (dauke da cutarwa abubuwa kamar mercury, game da 3.5-5mg / raka'a), maras daidaitacce haske (ƙananan wutar lantarki ba zai iya haskakawa), ultraviolet radiation, ultraviolet radiation, flickering sabon abu, jinkirin farawa Slow, farashin kayan albarkatun ƙasa da ba kasafai ba yana ƙaruwa, maimaita sauyawa yana shafar rayuwar rayuwa, kuma ƙarar yana da girma.Matsakaicin fitilun fitar da iskar gas: cinye iko mai yawa, ba su da aminci don amfani, suna da gajere. tsawon rayuwa, kuma suna da matsalolin zubar da zafi. Ana amfani da su galibi don hasken waje.
Amfanin LED
LED karamin guntu ne wanda aka lullube shi cikin resin epoxy, don haka karami ne kuma mara nauyi. Gabaɗaya magana, ƙarfin wutar lantarki na LED shine 2-3.6V, aikin yanzu shine 0.02-0.03A, kuma yawan wutar lantarki gabaɗaya bai fi girma ba.
0.1W. Ƙarƙashin ƙarfin lantarki da dacewa da yanayin aiki na yanzu, rayuwar sabis na LEDs na iya zama tsawon sa'o'i 100,000.
LED yana amfani da fasahar luminescence mai sanyi, wanda ke haifar da ƙarancin zafi fiye da na yau da kullun na hasken wutar lantarki iri ɗaya. LEDs an yi su ne da kayan da ba su da guba, ba kamar fitilun fitilun da ke ɗauke da mercury ba, waɗanda ke haifar da gurɓata yanayi. A lokaci guda kuma, LEDs kuma za a iya sake yin amfani da su da sake amfani da su.
Amfani da LED
Yayin da fasahar LED ke ci gaba da girma da haɓaka cikin sauri, ƙarin aikace-aikacen LED suna bayyana a rayuwarmu ta yau da kullun. LEDs ana amfani da ko'ina a LED nuni, zirga-zirga fitilu, mota fitilu, lighting kafofin, lighting kayan ado, LCD allon backlights, da dai sauransu.
Gina LED
LED guntu ce mai fitar da haske, sashi da wayoyi da aka lullube cikin resin epoxy. Yana da haske, mara guba kuma yana da juriya mai kyau. LED yana da halayen tafiyar da hanya ɗaya, kuma lokacin da ƙarfin wutar lantarki ya yi yawa, zai haifar da rushewar LED. Ana nuna babban tsarin abun da ke ciki a cikin adadi:
Lokacin aikawa: Oktoba-30-2023
