He mea maʻamau ka noe a me ka ua. Ma kēia mau kūlana ʻike haʻahaʻa, hiki ke paʻakikī ke kaʻa ʻana a i ʻole ka hele ʻana ma ke alanui no nā mea hoʻokele a me nā mea hele wāwae, akā ke hāʻawi nei ka ʻenehana kukui alanui LED hou i ka poʻe huakaʻi i kahi huakaʻi palekana.
kukui alanui LEDʻO ia kahi kumu kukui anuanu paʻa, nona nā hiʻohiʻona o ka mālama ʻana i ke kaiapuni, ʻaʻohe pollution, haʻahaʻa mana hoʻohana, kiʻekiʻe luminous pono, a lōʻihi ke ola. No laila, e lilo ke kukui alanui LED i mea koho maikaʻi loa no ka hoʻoponopono hou ʻana i ka ikehu o ke kukui alanui. ʻO ke kukui alanui LED he kumu kukui paʻa paʻa kiʻekiʻe e pili ana i ka hui semiconductor pn, hiki ke hoʻokuʻu i ke kukui me ka ikehu uila nāwaliwali. Ma lalo o kekahi mana kūpono a me ka hoʻokuʻu ʻana i kēia manawa, nā lua i hoʻokomo ʻia i loko o ka p-region a me nā electrons injected i loko o ka n-region diffuse i ka ʻāpana hana ma hope o ka radiative recombination a emit photons, e hoʻohuli pololei i ka ikehu uila i ka ikehu māmā. ʻO ke kukui alanui LED he kumu kukui paʻa paʻa kiʻekiʻe e pili ana i ka hui semiconductor pn, hiki ke hoʻokuʻu i ke kukui me ka ikehu uila nāwaliwali. Ma lalo o kekahi mana kūpono a me ka hoʻokuʻu ʻana i kēia manawa, nā lua i hoʻokomo ʻia i loko o ka p-region a me nā electrons injected i loko o ka n-region diffuse i ka ʻāpana hana ma hope o ka radiative recombination a emit photons, e hoʻohuli pololei i ka ikehu uila i ka ikehu māmā.
ʻO nā pōmaikaʻi o ke kukui alanui LED i ka noe a me ka ua hiki ke ʻike ʻia i ʻekolu mau ʻano:
1. ʻO ke kuhikuhi pono ʻana o ka kukuna kukui i hoʻokuʻu ʻia;
2. Nā hiʻohiʻona hawewe o nā LED keʻokeʻo;
3. ʻO ke alapine o kēia nalu nalu i hoʻohālikelike ʻia me nā kumu kukui ʻē aʻe.
ʻO ka ʻokoʻa ma waena o nā kukui LED a me nā kumu kukui ʻē aʻe a pau, ʻo ia ka lōʻihi o ka nalu e hoʻopuka ai i ka ikehu, a me ke ʻano o ka pili ʻana a i ʻole ka hopena o nā kulu wai i ka beam ma kēlā lōʻihi nalu, ʻoi aku ka nui o nā kulu wai.
ʻO nā kumu māmā e hoʻopuka mua i ka ikehu māmā i nā lōʻihi hawewe polū o ka spectrum i ʻike ʻia, e like me nā LED, ʻoi aku ka maikaʻi ma mua o nā kumu kukui ʻē aʻe i nā kūlana haʻahaʻa.
ʻOi aku ka pōkole o nā lōʻihi nalu ma mua o ka mālamalama ma ka ʻāpana ʻulaʻula. ʻO nā ʻāpana mahu wai i ka lewa e hele maʻamau i ka mālamalama i ka laulā melemele-ʻalani-ʻulaʻula, akā hoʻopuehu lākou i ke kukui polū. Ma muli paha o ka like ʻana o nā ʻāpana wai me nā lōʻihi hawewe polū. No laila, i ka wā maʻemaʻe ka lani ma hope o ka ua a i ʻole ka lewa i ka hāʻule ʻana (he ʻuʻuku ka liʻiliʻi o nā ʻāpana koʻikoʻi i ka lewa, ʻoi aku ka nui o ka hoʻopuehu ʻana o ka molekala), ma lalo o ka hopena hoʻopuehu ikaika o nā molekala lewa, ua hoʻopuehu ʻia ke kukui polū e hoʻopiha i ka lewa. a uliuli ka lani. Ua kapa ʻia kēia hanana ʻo Rayleigh scattering.
Ma nā kūlana ʻike haʻahaʻa, hoʻonui ʻia ka nui o nā ʻāpana wai a hiki i kahi i like ʻole ai ka nui me nā lōʻihi o ka nalu kukui. I kēia manawa, hoʻohālikelike lākou i ka nui me nā lōʻihi nalu melemele-ʻalani-ʻulaʻula. Hiki i nā ʻāpana wai ke hoʻopuehu a hoʻopaʻa i ka mālamalama i loko o kēia mau pūʻulu, akā e hele i ke kukui polū. ʻO ia ke kumu e ʻike ʻia ai ka polū a i ʻole ka ʻōmaʻomaʻo o ka lā ma muli o ka noe.
Mai ka nui o ka wai a hiki i ka nalu, ʻo nā kukui alanui LED ke koho maikaʻi loa no nā kūlana ʻike haʻahaʻa. Hoʻokumu ka mahana kala a me ka hoʻolālā kukui i nā kūlana alanui maikaʻi loa i ka wā ua a me ka noe. Ma ka hoʻomaikaʻi ʻana i ka ʻike, mālama nā kukui alanui LED i nā alanui i ka ua a me nā wahi ʻino.
Inā 'oe i hoihoi i ke kukui alanui LED, e hoʻokipa i ka alakaʻi alanui kukui mea hana TIANXIANG iheluhelu hou.
Ka manawa hoʻouna: ʻAukake-02-2023