Menene amfanin hasken nunin LED?Kamar yadda wani matsakaici na talla, LED nuni fuska akai-akai bayyana a cikin rayuwar mu, da kuma bukatar tabbatarwa ganewa bayani dangane da LED nuni fuska kuma ya karu.Bari mu tattauna yadda za a gane haske na LED nuni.
Da farko, bari mu fahimci menene hasken nunin LED:
Hasken bututu mai fitar da hasken LED yana nufin tsananin hasken da jikin mai haske ke fitarwa, wanda ake kira tsananin haske, wanda aka bayyana a cikin MCD.Hasken haske na nunin LED cikakkiyar ma'auni ne, wanda ke nufin ma'aunin ma'aunin jimillar haske mai haske (luminous flux) na dukkan na'urorin LED a kowace juzu'in raka'a da haske a wani ɗan nesa.
Hasken nunin LED: A cikin wata jagorar da aka bayar, ƙarfin haske a kowane yanki na yanki.Naúrar haske shine cd/m2.
Hasken ya yi daidai da adadin LEDs a kowane yanki da kuma hasken LED ɗin kanta.Hasken LED yana daidaita daidai da abin da ke gudana a halin yanzu, amma rayuwarsa ta bambanta da murabba'in da yake a halin yanzu, don haka ba za a iya ƙara yawan abin da ake amfani da shi ba don neman haske.A daidai wannan ma'aunin yawa, hasken nunin LED ya dogara da kayan, marufi da girman guntu LED da aka yi amfani da su.Babban guntu, mafi girman haske;akasin haka, ƙananan haske.
Don haka menene buƙatun haske na hasken yanayi don allon?
Abubuwan buƙatun haske gabaɗaya sune kamar haka:
(1) Nunin LED na cikin gida:> 800CD/M2
(2) Semi-na gida LED nuni:>2000CD/M2
(3) Nuni LED na waje (zauna kudu da fuskantar arewa):>4000CD/M2
(4) Nuni LED na waje (zauna arewa da fuskantar kudu):>8000CD/M2
Ingantattun bututu masu haske na LED da aka sayar a kasuwa ba daidai ba ne, kuma yawancin haske ba za a iya tabbatar da su ba.Ana yaudarar masu amfani da abin mamaki na shoddy.Yawancin mutane ba su da ikon bambance haske na LED masu haske bututu.Saboda haka, 'yan kasuwa sun ce haske ɗaya ne da haske.Kuma yana da wahala a iya gane shi da ido tsirara, to yaya za a gane shi?
1. Yadda ake gane haske na nunin LED
1. Yi wutar lantarki na 3V DC mai sauƙi don haɗawa da diode mai haske da kanka.Zai fi kyau a yi amfani da baturi don yin shi.Kuna iya amfani da baturan maɓalli guda biyu, saka su a cikin ƙaramin bututun filastik kuma fitar da bincike guda biyu azaman sakamako mai kyau da mara kyau.Ƙarshen wutsiya an yi shi kai tsaye a cikin sauyawa tare da shrapnel.Lokacin da ake amfani da shi, bincike mai inganci da mara kyau sun dace da ingantattun lambobin sadarwa mara kyau na diode mai fitar da haske.A kan madaidaicin fil, latsa ka riƙe canji a ƙarshen, kuma bututu mai haske zai fitar da haske.
2. Abu na biyu, hada photoresistor da multimeter na dijital don samar da na'ura mai sauƙi mai sauƙi.Jagorar photoresistor tare da ƙananan wayoyi guda biyu kuma haɗa su kai tsaye zuwa alkaluma biyu na multimeter na dijital.Ana sanya multimeter a matsayi na 20K (dangane da photoresistor, Yi ƙoƙarin yin karatun daidai yadda zai yiwu).Lura cewa ƙimar da aka auna shine ainihin ƙimar juriya na photoresistor.Sabili da haka, mafi kyawun haske, ƙananan ƙimar.
3. Ɗauki diode mai haske na LED kuma yi amfani da na'urar kai tsaye na 3V na sama don kunna shi.Shugaban da ke fitar da haske yana fuskantar kuma yana kusa da saman mai ɗaukar hoto na haɗin hoto.A wannan lokacin, multimeter yana karantawa don bambanta haske na LED.
2. Matsayin nuna wariyar haske yana nufin matakin haske na hoto wanda idon ɗan adam zai iya bambanta daga mafi duhu zuwa mafi fari.
Matsayin launin toka na allon nuni na LED yana da girma sosai, wanda zai iya kaiwa 256 ko ma 1024. Duk da haka, saboda ƙarancin hankali na idanun ɗan adam zuwa haske, waɗannan matakan launin toka ba za a iya gane su sosai ba.A wasu kalmomi, yana yiwuwa yawancin matakan da ke kusa da sikelin launin toka idanun ɗan adam suna kama da juna.Haka kuma, iyawar bambancewar idanu ta bambanta daga mutum zuwa mutum.Don nunin nunin LED, mafi girman matakin gane idon ɗan adam, mafi kyau, saboda hoton da aka nuna shine don mutane su gani bayan duk.Ƙarin matakan haske da idon ɗan adam zai iya bambanta, girman sararin launi na nunin LED, kuma mafi girman yuwuwar nuna launuka masu kyau.Ana iya gwada matakin nuna bambanci mai haske da software na musamman.Gabaɗaya, allon nuni zai iya kaiwa matakin 20 ko fiye, koda kuwa matakin mai kyau ne.
3. Abubuwan buƙatu don haske da kusurwar kallo:
Hasken nunin LED na cikin gida dole ne ya kasance sama da 800cd/m2, kuma hasken nunin cikakken launi na waje dole ne ya kasance sama da 1500cd/m2 don tabbatar da aikin al'ada na nunin LED, in ba haka ba hoton da aka nuna ba zai bayyana ba saboda haske yayi ƙasa da ƙasa.An ƙayyade haske da ingancin LED mutu.Girman kusurwar kallo kai tsaye yana ƙayyade masu sauraron nunin LED, don haka mafi girma ya fi kyau.An ƙayyade kusurwar kallo ta kunshin mutu.