ʻO kahi kukui-emitting diode (LED) kahi kumu kukui semiconductor alakaʻi ʻelua. He diode pn-junction, e hoʻopuka ana i ka mālamalama ke hoʻāla ʻia.
He mea maikaʻi loa ia no nā papa hana, nā hana hale kukui, a me nā mea hana mana no ka mea hoʻohana lākou i ka mana liʻiliʻi a hoʻopuka i kahi kumu kukui ikaika a paʻa.
ʻO ia ka mea āu e makemake ai i ka wā e hoʻomālamalama ai i kahi papahana, kukui ʻaʻole ʻōlino a hiki ke hoʻohana maʻalahi ʻia, mai ka pākaukau a i ʻole ka mea hana ponoʻī.
Ke hoʻohana ʻia kahi volta kūpono i nā alakaʻi, hiki i nā electron ke hui hou me nā lua electron i loko o ka hāmeʻa, e hoʻokuʻu ana i ka ikehu ma ke ʻano o nā photon.
Kapa ʻia kēia hopena i ka electroluminescence, a ʻo ke kala o ke kukui (e pili ana i ka ikehu o ka photon) e hoʻoholo ʻia e ka ʻāpana kaha o ka semiconductor.
He liʻiliʻi pinepine ka LED ma kahi (emi iho ma mua o 1 mm2) a hiki ke hoʻohana ʻia nā ʻāpana optical i hoʻohui ʻia e hana i kāna ʻano radiation.
Ke ʻike ʻia nei ma ke ʻano he ʻāpana uila i ka makahiki 1962, ua hoʻopuka nā LED mua loa i ke kukui infrared haʻahaʻa.
Hoʻohana pinepine ʻia nā LED infrared e like me ka hoʻouna ʻana i nā mea i nā kaʻa kaʻa mamao, e like me nā mea i nā mana mamao no nā ʻano mea uila uila.
He haʻahaʻa haʻahaʻa nō hoʻi nā kukui ʻike mua ʻia, a kaupalena ʻia i ka ʻulaʻula. Loaʻa nā LED hou ma waena o nā nalu ʻike, ultraviolet, a me ka infrared, me ka ʻōlinolino kiʻekiʻe loa.
Hoʻohana pinepine ʻia nā LED mua e like me nā kukui hōʻailona no nā mea uila, e pani ana i nā ʻōpuʻu kukui liʻiliʻi.
Hoʻopili koke ʻia lākou i nā helu helu helu ma ke ʻano o nā hōʻike ʻāpana ʻehiku, a ʻike pinepine ʻia i nā uaki kikohoʻe.
ʻO nā hoʻomohala hou i nā LED e ʻae iā lākou e hoʻohana ʻia i ke kukui kūlohelohe a me ka hana.
He nui nā pōmaikaʻi o nā LED ma mua o nā kumu kukui incandescent e like me ka emi ʻana o ka ikehu, ka lōʻihi o ke ola, hoʻomaikaʻi i ka ikaika kino, ka liʻiliʻi, a me ka hoʻololi wikiwiki.
Hoʻohana ʻia nā diodes māmā i nā noi like ʻole e like me ke kukui mokulele, nā kukui uila, nā hoʻolaha, nā kukui maʻamau, nā hōʻailona kaʻa, a me nā uila kamera.
Eia nō naʻe, ʻoi aku ka nui o ke kumukūʻai o nā LED no ka kukui lumi, a koi ʻoi aku ka pololei o kēia manawa a me ka hoʻokele wela ma mua o nā kumu kukui fluorescent compact o ka hoʻohālikelike like.
Ua ʻae nā LED e hoʻomohala i nā kikokikona hou, nā hōʻike wikiō, a me nā mea ʻike, ʻoiai ʻo kā lākou kiʻekiʻe kiʻekiʻe o ka hoʻololi ʻana he mea pono hoʻi i ka ʻenehana kamaʻilio holomua.
ʻO wau ʻo Joost Nusselder, ka mea nāna i hoʻokumu i ke Kauka Mea Hana, mea kūʻai maʻiʻo, a me ka makuakāne. Makemake au i ka hoʻāʻo ʻana i nā mea hana hou, a me kaʻu hui ua hana au i nā ʻatikala blog hohonu mai ka makahiki 2016 e kōkua i ka poʻe heluhelu kūpaʻa me nā mea hana a me nā ʻōlelo aʻoaʻo.
