Kuyera Nzira Yekupenya kwe LED

Kuyera Nzira Yekupenya kwe LED

Kufanana nemagetsi echinyakare masosi, iwo optical kuyerwa zvikamu zve LED mwenje masosi akafanana. Kuita kuti vaverengi vanzwisise uye vashandise zviri nyore, ruzivo rwakakodzera ruchaunzwa muchidimbu pazasi:

1. Ruminous flux

Luminous flux inoreva kuwanda kwechiedza chinoburitswa nechiedza pachikamu chenguva, kureva, chikamu chesimba rinopenya iro simba rinopenya rinogona kunzwikwa neziso remunhu. Iyo yakaenzana nechigadzirwa chesimba rinopenya reimwe bhendi panguva yeyuniti uye chiyero chekutarisa chebhandi ichi. Sezvo maziso emunhu aine chiyero chakasiyana chekutarisa kwechiedza chewavelengths akasiyana, kana simba remwaranzi rechiedza remawavelengths akasiyana rakaenzana, kupenya kunopenya hakuna kuenzana. Chiratidzo chechiedza chinopenya ndi Φ, uye iyo unit ndeye lumens (Lm).

Zvinoenderana neiyo spectral inopenya flux Φ (λ), iyo inopenya flux formula inogona kutorwa:

Φ=Km■Φ(λ)gV(λ)dλ

Muchimiro, V(λ) -chirevo che spectral luminous performance; Km - iyo yakanyanya kukosha yeradiated spectral luminous performance, muLm/W. Muna 1977, kukosha kweKm kwakatemwa neInternational Committee of Weights and Measures kuti ive 683Lm/W (λm=555nm).

2. Chiedza chakasimba

Kusimba kwechiedza (light intensity) zvinoreva simba rechiedza rinopfuura nepakati pechikamu chenguva. Simba racho rinoenzana nemafambiro uye ndiwo muunganidzwa wesimba rawo (kureva kuti mubatanidzwa). Inogona zvakare kunzwisiswa sekupenya kwakajeka I kwechiedza chegwaro mune yakapihwa gwara ndiko kunobva mwenje Iyo quotient yeinopenya flux d Φ inopfuudzwa mu cube kona element munzira yakakamurwa ne cube kona element d Ω.

Iyo unit yekupenya kwesimba ndeye candela (cd), 1cd=1Lm/1sr. Huwandu hwekusimba kwechiedza kumativi ese muchadenga ndiko kuyerera kwechiedza.

3. Kupenya

Mukuita kwedu kuyedza kupenya kwemachipi e LED uye kuongorora kuchengetedzwa kwemwenje we LED, nzira dzekufungidzira dzinowanzo shandiswa, uye kufungidzira kwe microscopic kunogona kushandiswa kuyera iyo chip kuyedzwa. Kupenya kwakajeka ndiko kupenya L kweimwe nzvimbo panzvimbo inoburitsa chiedza chechiedza, inova iyo quotient yekupenya kwechinhu chechiso d S mune yakapihwa nzira yakakamurwa nenzvimbo yeiyo face element's orthographic projection pa. ndege perpendicular kune yakapihwa gwara

Iyo unit yekupenya ndeye candela pa square mita (cd/m2). Kana nzvimbo inobuditsa chiedza ichitenderedza kunzira yekuyera, cosθ=1.

4. Kuvhenekera

Kuvheneka kunoreva mwero wekuvhenekerwa kwechinhu, uchiratidzwa neruvheneko rwekupenya rwunogamuchirwa pachikamu chechikamu. Kuvhenekera kwakabatana nemwenje unovhenekera sosi, iyo yakavhenekerwa pamusoro uye chinzvimbo chechiedza chinobva muchadenga. Saizi inoenzana nekusimba kwechivheneko uye nekona yechiitiko chechiedza, uye zvakapesana nehupamhi hwechinhambwe kubva pachitubu chechiedza kusvika pamusoro pechinhu chakavhenekerwa. Kuvhenekera kweE kwepoindi pamusoro ndiyo quotient yeinopenya flux d Φ chiitiko papaneru ine poindi yakakamurwa nenzvimbo yepaneru d S.

Iyo unit ndeye Lux (LX), 1LX=1Lm/m2.