I kēia mau lā, ua lilo ka LED i mea hiki ʻole ke komo i loko o ko kākou ola. I kēia lā, e hāʻawi wau iā ʻoe i kahi hoʻolauna pōkole i ka manaʻo, nā ʻano, a me ka hoʻokaʻawale ʻana.

Ka Manaʻo o ka LED

ʻO ka LED (Light Emitting Diode) he mea hana semiconductor paʻa e hoʻololi pololei i ka uila i ka Mālamalama. ʻO ka puʻuwai o ka LED he ʻāpana semiconductor, me kekahi welau i hoʻopili ʻia i kahi scaffold, ʻo kekahi welau he electrode maikaʻi ʻole, a ʻo kekahi welau i hoʻopili ʻia i ka hopena maikaʻi o ka lako mana, i hoʻopuni ʻia ka ʻāpana holoʻokoʻa i loko o kahi resin epoxy.

Hana ʻia kahi ʻāpana semiconductor i ʻelua ʻāpana, ʻo kekahi he semiconductor ʻano-p, kahi e noho aliʻi ai nā lua, a ʻo kekahi he semiconductor ʻano-n, kahi e noho aliʻi ai nā electrons. Akā i ka wā e pili ai nā semiconductors ʻelua, hana ʻia kahi "pn junction" ma waena o lākou. Ke hoʻopili ʻia ke au i ka ʻāpana ma o ke kaula, hoʻokuke ʻia nā electrons i ka ʻāpana-p, kahi e hui hou ai lākou me ka lua a hoʻopuka i ka ikehu ma ke ʻano o nā photons, ʻo ia ke ʻano o nā LED e ʻālohilohi ana. A ʻo ka nalu o ke kukui, ke kala o ke kukui, ua hoʻoholo ʻia e ka mea e hana ana i ka PN junction.

Nā ʻano o ka LED

ʻO nā ʻano kūloko o ka LED e hoʻoholo ai ʻo ia ke kumu kukui kūpono loa e pani i ke kumu kukui kuʻuna, a he ākea nā noi.

• Leo liʻiliʻi

ʻO ka LED he ʻāpana liʻiliʻi loa ia i hoʻopuni ʻia i loko o kahi resin epoxy, no laila he liʻiliʻi loa ia a māmā loa.

-Hoʻohana Mana Haʻahaʻa

He haʻahaʻa loa ka hoʻohana ʻana i ka mana o nā LED, ma ke ʻano laulā, ʻo ka volta hana o nā LED he 2-3.6V.
ʻO ke au hana he 0.02-0.03A.
ʻO ia hoʻi, ʻaʻole ia e hoʻopau i ka uila ma mua o 0.1W.

• Ola lawelawe lōʻihi

Me ke au kūpono a me ka volta, hiki i nā LED ke loaʻa ke ola lawelawe a hiki i 100,000 mau hola.

• ʻĀlohilohi kiʻekiʻe a me ka wela haʻahaʻa

• Ka Palekana Kaiapuni

Hana ʻia nā LED me nā mea ʻawaʻawa ʻole, ʻaʻole e like me nā kukui fluorescent, nona ka mercury a hoʻoulu i ka haumia. Hiki ke hana hou ʻia.

• Ikaika a paʻa

Hoʻopili piha ʻia nā LED i loko o ka resin epoxy, ʻoi aku ka ikaika ma mua o nā kukui uila a me nā paipu fluorescent. ʻAʻohe ʻāpana wehe i loko o ke kukui, kahi e hiki ʻole ai ke luku ʻia nā LED.

Ka Hoʻokaʻawale ʻana o ka LED

1, Wahi a ka ʻōmole hoʻomālamalamakalanā kiko

Wahi a ke kala o ka ʻōmole hoʻomālamalama, hiki ke hoʻokaʻawale ʻia i ʻulaʻula, ʻalani, ʻōmaʻomaʻo (a me ka melemele ʻōmaʻomaʻo, ʻōmaʻomaʻo maʻamau a me ka ʻōmaʻomaʻo maʻemaʻe), uliuli a pēlā aku.
Eia kekahi, aia kekahi mau LED i loko o nā ʻāpana ʻelua a ʻekolu paha mau kala.
Wahi a ke ʻano o nā diode hoʻopuehu kukui i hui pū ʻia a i ʻole i hui ʻole ʻia me nā mea hoʻopuehu, kala a i ʻole kala ʻole, hiki ke hoʻokaʻawale ʻia nā kala like ʻole o ka LED i ʻehā mau ʻano i ʻehā mau ʻano: aniani kala, aniani kala ʻole, hoʻopuehu kala a me ka hoʻopuehu kala ʻole.
Hiki ke hoʻohana ʻia nā diode hoʻopuehu kukui a me nā diode hoʻopuehu kukui e like me nā kukui hōʻike.

2.E like me nā ʻano o ka luminousʻilikaio ka paipu hoʻomālamalama

Wahi a nā ʻano o ka ʻili hoʻomālamalama o ka paipu hoʻomālamalama, hiki ke hoʻokaʻawale ʻia i ke kukui poepoe, ke kukui huinahā, ke kukui ʻehā, ka paipu hoʻomālamalama maka, ka paipu ʻaoʻao a me ka paipu liʻiliʻi no ke kau ʻana i ka ʻili, a pēlā aku.
Ua māhele ʻia ke kukui poepoe i Φ2mm, Φ4.4mm, Φ5mm, Φ8mm, Φ10mm a me Φ20mm, a pēlā aku.
Hoʻopaʻa pinepine nā haole i ka diode hoʻomāmā Φ3mm e like me T-1, φ5mm e like me T-1 (3/4), a meφ4.4mm e like me T-1 (1/4).

3. Wahi a keʻano hanao nā diode hoʻomāmā

Wahi a ke ʻano o ka LED, aia nā epoxy encapsulation āpau, nā metal base epoxy encapsulation, nā ceramic base epoxy encapsulation a me ke aniani encapsulation.

4. Wahi aka ikaika o ka mālamalama a me ke au hana

Wahi a ka ikaika luminous a me ke au hana, ua māhele ʻia ke au i ka LED mālamalama maʻamau (ikaika luminous 100mCD);
ʻO ka ikaika mālamalama ma waena o 10 a me 100mCD i kapa ʻia he diode hoʻemi kukui ʻōlinolino kiʻekiʻe.
ʻO ke au hana o ka LED maʻamau mai ka ʻumi mA a i nā ʻumi o mA, ʻoiai ke au hana o ka LED haʻahaʻa ma lalo o 2mA (ʻo ka ʻōlinolino like me ka ʻōpuʻu kukui maʻamau).
Ma waho aʻe o nā ʻano hoʻokaʻawale i luna, aia kekahi mau ʻano hoʻokaʻawale e ka mea ʻāpana a ma ka hana.

ʻO Ted: ʻo ka ʻatikala aʻe e pili ana i ka LED. He aha ia? E ʻoluʻolu e nānā mai.