I kēia mau lā, ua lilo ʻo LED i ʻāpana hiki ʻole i ko mākou ola. I kēia lā, e hāʻawi wau iā ʻoe i kahi hoʻolauna pōkole i ka manaʻo, nā hiʻohiʻona, a me ka hoʻokaʻawale ʻana.

ʻO ka manaʻo o LED

ʻO kahi LED (Light Emitting Diode) kahi mea hana semiconductor solid-state e hoʻololi pololei i ka uila i Māmā. ʻO ka puʻuwai o ka LED he puʻupuʻu semiconductor, me kahi ʻaoʻao i hoʻopili ʻia i kahi scaffold, ʻo kekahi ʻaoʻao he electrode maikaʻi ʻole, a ʻo kekahi ʻaoʻao e pili ana i ka hopena maikaʻi o ka lako mana, i hoʻopaʻa ʻia ka chip holoʻokoʻa i kahi. epoxy resin.

Hana ʻia ka ʻāpana semiconductor i ʻelua ʻāpana, ʻo kekahi o ia he semiconductor p-type, kahi e noho aliʻi ai nā lua, a ʻo kekahi o ia mea he semiconductor n-type, kahi e hoʻomalu ai nā electrons. Akā, i ka hoʻohui ʻia ʻana o nā semiconductor ʻelua, ʻike ʻia kahi "pn junction" ma waena o lākou. Ke hoʻopili ʻia kahi au i ka chip ma o ka uea, ua hoʻokuʻu ʻia nā electrons i ka p-region, kahi e hui hou ai lākou me ka lua a hoʻokuʻu i ka ikehu ma ke ʻano o nā photons, ʻo ia ke ʻano o nā kukui LED. A ʻo ka nalu o ka mālamalama, ke kala o ke kukui, ua hoʻoholo ʻia e ka mea i hoʻokumu i ka hui PN.

ʻO nā hiʻohiʻona o LED

ʻO nā hiʻohiʻona koʻikoʻi o ka LED e hoʻoholo ai ʻo ia ke kumu kukui maikaʻi loa e hoʻololi i ke kumu kukui maʻamau, loaʻa iā ia kahi ākea o nā noi.

• Volume Li'ili'i

ʻO ke kukui he ʻāpana liʻiliʻi liʻiliʻi i hoʻopili ʻia i loko o kahi resin epoxy, no laila liʻiliʻi a māmā loa.

-Ka hoʻohana ʻana i ka mana haʻahaʻa

He haʻahaʻa loa ka hoʻohana ʻana i ka mana LED, ʻo ka ʻōlelo maʻamau, ʻo 2-3.6V ka uila hana LED.
ʻO ka hana o kēia manawa he 0.02-0.03A.
ʻO ia hoʻi, ʻaʻole ia e ʻoi aku ma mua o 0.1W o ka uila.

• Ola Hana lōʻihi

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

• Kiʻekiʻe Olino a me Haʻahaʻa Wela

• Palekana Kaiapuni

Hana ʻia nā LED me nā mea ʻawaʻawa ʻole, ʻaʻole like me nā kukui fluorescent, aia i loko o ka mercury a hoʻohaumia. Hiki ke hana hou ia lakou.

• Paʻa a Paʻa

Hoʻopili piha ʻia nā LED i loko o ka resin epoxy, ʻoi aku ka ikaika ma mua o nā ʻōpuʻu kukui a me nā tubes fluorescent.

ʻO ka hoʻohālikelike o nā LED

1, E like me ka ipu kukuikala kalakiko

E like me ke kala o ke kukui uila, hiki ke hoʻokaʻawale ʻia i ʻulaʻula, ʻalani, ʻōmaʻomaʻo (a me ka ʻōmaʻomaʻo melemele, ka ʻōmaʻomaʻo maʻamau a me ka ʻōmaʻomaʻo maʻemaʻe), uliuli a pēlā aku.
Eia kekahi, aia kekahi mau LED i nā ʻāpana ʻelua a ʻekolu mau kala.
E like me ke kukui emitting diode i hui pū ʻia a ʻaʻole i hui pū ʻia me nā mea hoʻopuehu, waihoʻoluʻu a kala ʻole paha, hiki ke hoʻokaʻawale ʻia nā waihoʻoluʻu like ʻole o ka LED i loko o nā ʻano ʻano ʻehā.
Hiki ke hoʻohana ʻia nā diodes e hoʻopuehu ana i nā kukui uila a me nā kukui - emitting diodes e like me nā kukui hōʻike.

2.E like me nā hiʻohiʻona o ka luminousʻilikaio ka paipu kukui

E like me nā hiʻohiʻona o ka ʻili uila o ka pahu kukui, hiki ke hoʻokaʻawale ʻia i ke kukui pōʻai, ke kukui square, ke kukui rectangular, ke alo kukui emitting tube, ka ʻaoʻao ʻaoʻao a me ka micro tube no ka hoʻokomo ʻana i luna, etc.
Hoʻokaʻawale ʻia ke kukui pōʻai i Φ2mm, Φ4.4mm, Φ5mm, Φ8mm, Φ10mm a me Φ20mm, etc.
Hoʻopaʻa maʻamau nā haole i ka Φ3mm light-emitting diode e like me T-1, φ5mm e like me T-1 (3/4), aφ4.4mm e like me T-1 (1/4).

3. Wahi a kahale kūkuluo na diodes kukui

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

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

Wahi a ka ikaika o ka luminous a me ka hana ʻana i kēia manawa ua māhele ʻia i nā kukui kukui maʻamau (luminous intensity 100mCD);
Ua kapa ʻia ka ikaika o ka mālamalama ma waena o 10 a me 100mCD.
ʻO ke ʻano hana o ka LED maʻamau mai ka ʻumi mA a hiki i ka nui o ka mA, ʻoiai ʻo ke ʻano hana o ka LED haʻahaʻa o kēia manawa aia ma lalo o 2mA (ua like ka ʻōlinolino me ka paipu hoʻoheheʻe kukui maʻamau).
Ma waho aʻe o nā ʻano hoʻohālikelike i luna, aia kekahi mau ʻano hoʻohālikelike e ka mea chip a me ka hana.

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