Diode yotulutsa kuwala (LED) ndi gwero la kuwala kwa semiconductor yotsogola ziwiri. Ndi diode ya pn-junction, yomwe imatulutsa kuwala ikayatsidwa.
Ndiwothandiza kwambiri pamabenchi ogwirira ntchito, ntchito zomangira zowunikira, komanso mwachindunji pazida zamagetsi chifukwa amagwiritsa ntchito mphamvu zochepa ndikutulutsa gwero lamphamvu komanso lokhazikika.
Ndi zomwe mukufuna mukamayatsa pulojekiti, kuwala komwe sikumang'ambika komanso kutha kuyendetsedwa mosavuta, kuchokera pa batri kapena chida chomwecho ngakhale.
Pamene magetsi oyenerera agwiritsidwa ntchito pazitsulo, ma elekitironi amatha kuyanjananso ndi mabowo a electron mkati mwa chipangizocho, kutulutsa mphamvu mu mawonekedwe a photons.
Izi zimatchedwa electroluminescence, ndipo mtundu wa kuwala (wogwirizana ndi mphamvu ya photon) umatsimikiziridwa ndi kusiyana kwa gulu la mphamvu la semiconductor.
Nyali ya LED nthawi zambiri imakhala yaying'ono m'dera (osakwana 1 mm2) ndipo zida zophatikizika za kuwala zingagwiritsidwe ntchito kupanga mawonekedwe ake.
Zowoneka ngati zida zamagetsi mu 1962, ma LED oyambilira adatulutsa kuwala kocheperako kocheperako.
Ma LED a infrared amagwiritsidwabe ntchito mobwerezabwereza ngati zinthu zotumizira m'mabwalo akutali, monga omwe ali mumayendedwe akutali amagetsi osiyanasiyana ogula.
Ma LED oyambirira owoneka-owala analinso otsika kwambiri, ndipo amangokhala ofiira. Ma LED amakono akupezeka kudutsa mawonekedwe owoneka, ultraviolet, ndi infrared wavelengths, ndi kuwala kwambiri.
Ma LED oyambirira ankagwiritsidwa ntchito ngati nyali zowonetsera zipangizo zamagetsi, m'malo mwa mababu ang'onoang'ono a incandescent.
Posakhalitsa adayikidwa m'mawerengedwe owerengera ngati mawonekedwe a magawo asanu ndi awiri, ndipo nthawi zambiri amawonedwa mu mawotchi a digito.
Zomwe zachitika posachedwa mu ma LED zimawalola kuti azigwiritsidwa ntchito powunikira zachilengedwe ndi ntchito.
Ma LED ali ndi maubwino ambiri kuposa magwero a kuwala kwa incandescent kuphatikiza kugwiritsa ntchito mphamvu pang'ono, moyo wautali, kulimba kwakuthupi, kukula kochepa, komanso kusintha mwachangu.
Ma diode otulutsa kuwala tsopano amagwiritsidwa ntchito m'mitundu yosiyanasiyana monga kuyatsa kwandege, nyali zamagalimoto, kutsatsa, kuyatsa kwanthawi zonse, ma siginecha amsewu, ndi kuwala kwamakamera.
Komabe, ma LED amphamvu mokwanira kuti aziunikira m'chipinda akadali okwera mtengo, ndipo amafunikira kasamalidwe kabwino katsopano komanso kutentha kuposa magwero a nyale zophatikizika za fulorosenti zotulutsa zofanana.
Ma LED alola kuti malemba atsopano, mawonedwe a mavidiyo, ndi masensa apangidwe, pamene kusintha kwawo kwakukulu kulinso kothandiza pa zamakono zamakono zamakono.
Ndine Joost Nusselder, woyambitsa Tools Doctor, content marketer, and dad. Ndimakonda kuyesa zida zatsopano, ndipo pamodzi ndi gulu langa ndakhala ndikupanga zolemba zakuya zamabulogu kuyambira 2016 kuthandiza owerenga okhulupirika ndi zida & malangizo opangira.
