Tese tine chiitiko chehupenyu chakadaro. ZvichangotengwaMwenje dze LEDanogara achipenya zvakanyanya, asi mushure menguva yakati rebei, zviedza zvakawanda zvinozosviba nekusviba. Sei zviedza zve LED zvine maitiro akadaro?

Ngatikuisei kuzasi nhasi! Kuti tinzwisise kuti sei mwenje ye LED yemumba mako yava kudzima, tinoda kunzwisisa izwi rehunyanzvi – kuora kwemwenje we LED.

Iyo yakawanda mwenje ye LED inoshandiswa, iyo yakasviba zvakanyanya nekuti mwenje we LED uchange uine kuora kwechiedza.

The attenuation chiedza cheMwenje we LEDzvigadzirwa ndicho chiratidzo kushaya simba kwechiedza mukufambiswa. Parizvino, chiedza chekudzivirira dhigirii reLED zvigadzirwayakagadzirwa nevagadziri vakuru ve LED munyika dzakasiyana. Yakakwira simba inotungamirwa ine zvakare mwenje attenuation, iyo yakanangana netembiricha, inonyanya kutsanangurwa nechip, phosphor uye yekurongedza tekinoroji. Parizvino, kuora kwechiedza che LED chena pamusika ndeimwe yematambudziko akakosha mukuvandudzwa kwemwenje wevagari.

Kuora kwechiedza kunowanzoreva kupenya kwayo kunopenya. Paunenge uchichaja pamusoro peiyo photosensitive dhiramu, pamwe nekuunganidzwa kwechaji pamusoro peiyo photosensitive dhiramu, iyo inogona kuwedzera ichienderera, uye pakupedzisira inosvika "saturation" inogona, inova yakanyanya kugona. Kugona kwepamusoro kuchaderera nekufamba kwenguva. Kazhinji, simba rekushanda rakaderera pane izvi zvingaita. Iyo nzira iyo iyo inogoneka inodzikira nekufamba kwenguva inonzi "dark decay" process. Kana iyo photosensitive drum inotariswa uye yakafumurwa, kugona kwenzvimbo ine rima (pamusoro peiyo photoconductor isina kuvhenekerwa nechiedza) ichiri munzira yekuora kwakasviba; Munharaunda inopenya (pamusoro peiyo photoconductor yakavhenekerwa nechiedza), iyo inotakura density mufotoconductive layer inowedzera nekukurumidza, iyo conductivity inowedzera nekukurumidza, uye iyo photoconductive voltage inoumbwa, iyo charge inonyangarika nekukurumidza, uye kugona kwepamusoro kwephotoconductor zvakare. inoderera nokukurumidza. Inonzi "light decay".