1907 Umuhanga mu Bwongereza witwa Henry Joseph Round yavumbuye ko luminescence ishobora kuboneka muri kirisiti ya silicon karbide mugihe ikoreshwa.
1927 Umuhanga mu Burusiya Oleg Lossew yongeye kwitegereza “Round effect” yo kohereza urumuri.Hanyuma yasuzumye asobanura ibi bintu muburyo burambuye
1935 Umuhanga w’umufaransa Georges Destriau yasohoye raporo kubyerekeranye na elector-luminescence phenomenon yifu ya zinc sulfide.Mu rwego rwo kwibuka abababanjirije, yise iyi ngaruka “urumuri rwa Lossew” maze atanga ijambo “elector-luminescence phenomenon” muri iki gihe.
1950 Iterambere rya fiziki ya semiconductor mu ntangiriro ya za 1950 ryatanze ubushakashatsi bwibanze ku bintu bitora-optique, mu gihe inganda za semiconductor zatangaga ibyuma bya semiconductor byera, ubushakashatsi bwa LED
1962 Nick Holon yak, Jr. na SF Bevacqua wo muri Sosiyete ya GF bakoresheje ibikoresho bya GaAsP kugirango bakore diode itanga urumuri rutukura.Numucyo wambere ugaragara LED, ifatwa nkabakurambere ba LED igezweho
1965 Gucuruza urumuri rutagira urumuri rutanga LED, no gucuruza fosifori itukura gallium arsenide LED vuba
1968 Azote-yuzuye gallium arsenide LED yagaragaye
1970s Hano hari gallium fosifate icyatsi kibisi na silicon karbide LED.Kwinjiza ibikoresho bishya bitezimbere imikorere ya LED kandi ikagura urumuri rwa LED kuri orange, umuhondo nicyatsi kibisi.
1993 Uruganda rukora imiti rwa Nichia Nakamura Shuji hamwe nabandi bakoze iterambere rya mbere ryubururu bwa gallium nitride LED, hanyuma bakoresha indium gallium nitride semiconductor kugirango babone ultraviolet ultra-ultraviolet, ubururu nicyatsi kibisi, bakoresheje aluminium gallium indium fosifide Igice cya kabiri cyakoraga LED itukura cyane kandi itukura.LED yera nayo yarakozwe.
1999 Kwamamaza LED hamwe nimbaraga zisohoka kugeza 1W
Kugeza ubu Inganda LED ku isi ifite inzira eshatu tekinike.Iya mbere ni inzira ya safiro ihagarariwe na Nichia yo mu Buyapani.Kugeza ubu ni tekinoroji ikoreshwa cyane kandi ikuze cyane, ariko ibibi byayo nuko idashobora gukorwa mubunini.Iya kabiri ni silicon karbide substrate inzira ya tekinoroji ya LED ihagarariwe na American CREE Company.Ubwiza bwibintu nibyiza, ariko igiciro cyibikoresho ni kinini kandi biragoye kugera kubunini bunini.Iya gatatu ni tekinoroji ya silicon substrate LED yahimbwe nu Bushinwa Jingneng Optoelectronics, ifite ibyiza byo kugiciro gito, imikorere myiza, ninganda nini.
Igihe cyo kohereza: Mutarama-27-2021