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LED燈珠知識

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led燈珠變夜光燈

發布時間:2022-09-28 13:37:12

大家好(hao)我是小編燈(deng)漂亮今天我們(men)來介紹(shao)led燈(deng)珠變夜光燈(deng) 的(de)問題,以下就是燈(deng)漂亮對此問題和相關問題的(de)歸納整理,一起來看(kan)看(kan)吧。

文章目錄導航:

led白光熒光轉換方式

LED采用熒光(guang)(guang)粉實現白光(guang)(guang)主(zhu)要有三種(zhong)方法,但它(ta)們并沒有完全成熟,由此嚴重地影響白光(guang)(guang)LED在(zai)照明領域的應用。

第一種方法(fa):藍光(guang)(guang)(guang)LED芯片(pian)+黃色(se)熒光(guang)(guang)(guang)粉(fen),該(gai)(gai)技術(shu)被日(ri)本Nichia公(gong)司壟斷,而(er)且這種方案的一個原理性的缺點就是該(gai)(gai)熒光(guang)(guang)(guang)體中Ce3+離(li)子的發射(she)光(guang)(guang)(guang)譜不具連續光(guang)(guang)(guang)譜特性,顯色(se)性較差,難以滿足低色(se)溫(wen)照(zhao)明(ming)的要求,同時(shi)發光(guang)(guang)(guang)效率還不夠高(gao),需要通過開發新型的高(gao)效熒光(guang)(guang)(guang)粉(fen)來改(gai)善(shan)。

第(di)二種方法:藍光(guang)LED+綠色熒光(guang)粉(fen)+紅(hong)色熒光(guang)粉(fen),通過(guo)芯(xin)片發出(chu)的(de)藍光(guang)與(yu)熒光(guang)粉(fen)發出(chu)的(de)綠光(guang)和紅(hong)光(guang)復合得到白光(guang),顯(xian)色性(xing)較(jiao)好(hao)。但是,這種方法所(suo)用熒光(guang)粉(fen)有(you)效(xiao)轉(zhuan)換效(xiao)率(lv)較(jiao)低(di),尤其是紅(hong)色熒光(guang)粉(fen)的(de)效(xiao)率(lv)需要較(jiao)大幅度的(de)提高。

第三(san)種(zhong)方(fang)法:紫光(guang)(guang)LED+三(san)基色熒(ying)光(guang)(guang)粉(fen)(多種(zhong)顏色的熒(ying)光(guang)(guang)粉(fen)),利用(yong)該芯片發(fa)(fa)射的長波(bo)紫外光(guang)(guang)(370nm-380nm)或紫光(guang)(guang)(380nm-410nm)來激發(fa)(fa)熒(ying)光(guang)(guang)粉(fen)而(er)實(shi)現白光(guang)(guang)發(fa)(fa)射,該方(fang)法顯色性(xing)更好,但同樣存在和(he)第二種(zhong)方(fang)法相似的問題,且目前轉(zhuan)換效率較(jiao)高(gao)的紅色和(he)綠色熒(ying)光(guang)(guang)粉(fen)多為硫化物(wu)體(ti)系,這類熒(ying)光(guang)(guang)粉(fen)發(fa)(fa)光(guang)(guang)穩定性(xing)差、光(guang)(guang)衰(shuai)較(jiao)大,因此開發(fa)(fa)高(gao)效的、低光(guang)(guang)衰(shuai)的白光(guang)(guang)LED用(yong)熒(ying)光(guang)(guang)粉(fen)已成(cheng)為一(yi)項迫在眉睫(jie)的工作。

led燈珠變夜光燈

兩粒LED電珠一塊舊手機電池能做個小夜燈嗎

完(wan)全可以的(de)LED電(dian)(dian)珠(zhu)串聯起來接(jie)到舊手(shou)(shou)機電(dian)(dian)池(chi)(chi)上看(kan)看(kan)亮(liang)度如(ru)何如(ru)果不太(tai)亮(liang),就并聯。(舊手(shou)(shou)機電(dian)(dian)池(chi)(chi)一(yi)般都有過充保護(hu)把LED小電(dian)(dian)珠(zhu)直(zhi)接(jie)接(jie)到舊手(shou)(shou)機電(dian)(dian)池(chi)(chi)上把過充保護(hu)電(dian)(dian)路甩開(kai))。你(ni)看(kan)看(kan)我用手(shou)(shou)機舊電(dian)(dian)池(chi)(chi)改裝的(de)小臺(tai)燈和你(ni)講的(de)小夜燈是(shi)一(yi)個道(dao)理的(de)。

led燈珠制作小夜燈

1,先查看LED器件手冊,看你選的(de)這種LED點亮時的(de)壓降是(shi)多(duo)少(shao),能承受(shou)的(de)最大(da)電流(liu)是(shi)多(duo)少(shao)(一般20MA,所以你的(de)LED點亮一會兒就燒(shao)了),LED的(de)壽命就跟電流(liu)有關,主要控(kong)制(zhi)電流(liu)的(de)穩(wen)定(ding)性。

2,LED燈(deng)珠做小(xiao)夜(ye)燈(deng),需(xu)要給LED燈(deng)珠提供(gong)合適的工作電(dian)(dian)(dian)流(liu)。市電(dian)(dian)(dian)的小(xiao)夜(ye)燈(deng),可以(yi)用隔離電(dian)(dian)(dian)源降(jiang)壓后(hou),接電(dian)(dian)(dian)阻(zu)限流(liu),然后(hou)點亮LED。也(ye)可以(yi)直接阻(zu)容(rong)降(jiang)壓,限流(liu)點亮LED,但是(shi)容(rong)易觸電(dian)(dian)(dian)。

led夜光模式介紹

一般是放了夜光(guang)(guang)(guang)(guang)粉,在(zai)日光(guang)(guang)(guang)(guang)或燈(deng)光(guang)(guang)(guang)(guang)照(zhao)射下吸光(guang)(guang)(guang)(guang)520分(fen)鐘后(hou),將吸收的光(guang)(guang)(guang)(guang)能(neng)轉化(hua)后(hou)儲存在(zai)晶(jing)格(ge)中,在(zai)暗處又(you)可(ke)(ke)將儲存的能(neng)量(liang)轉化(hua)為光(guang)(guang)(guang)(guang)能(neng)而發光(guang)(guang)(guang)(guang),可(ke)(ke)有效持續發光(guang)(guang)(guang)(guang)(發光(guang)(guang)(guang)(guang)亮度(du)大于(yu)10 mcd/m2)達到(dao)8-10小時(shi),發光(guang)(guang)(guang)(guang)亮度(du)衰減(jian)到(dao)人的肉眼觀察下限(0.32mcd/m2)的時(shi)間更可(ke)(ke)達70小時(shi)以上,化(hua)學性質(zhi)穩(wen)定,吸光(guang)(guang)(guang)(guang)、蓄光(guang)(guang)(guang)(guang)、發光(guang)(guang)(guang)(guang)過程可(ke)(ke)重復進行,產品性能(neng)穩(wen)定,使用(yong)壽(shou)命可(ke)(ke)達20年以上。

該類材料無毒害(hai),不含(han)放射性,生產過程也無有(you)害(hai)物質產生,是新型的環保材料

怎樣改裝夜釣燈

現(xian)在(zai)(zai)向釣友推薦(jian)我(wo)的(de)(de)做法:將(jiang)原來連接LED電(dian)(dian)(dian)阻換掉裝(zhuang)上(shang)10歐(ou)姆的(de)(de)電(dian)(dian)(dian)阻,電(dian)(dian)(dian)阻在(zai)(zai)電(dian)(dian)(dian)子(zi)器(qi)材商店就(jiu)可買到,很便宜,一(yi)元錢就(jiu)能買到50-100粒(li),換過(guo)電(dian)(dian)(dian)阻的(de)(de)LED燈就(jiu)可以(yi)舍棄笨重的(de)(de)鉛酸蓄電(dian)(dian)(dian)池(chi)改裝(zhuang)上(shang)18650電(dian)(dian)(dian)池(chi)(有過(guo)電(dian)(dian)(dian)保護電(dian)(dian)(dian)路(lu)更(geng)佳) 更(geng)可以(yi)裝(zhuang)上(shang)手(shou)機鋰電(dian)(dian)(dian)池(chi)(所有手(shou)機鋰電(dian)(dian)(dian)池(chi)都有過(guo)電(dian)(dian)(dian)保護電(dian)(dian)(dian)路(lu)),以(yi)一(yi)盞8頭(粒(li))LED燈為例,裝(zhuang)上(shang)一(yi)快1200毫安(an)的(de)(de)鋰電(dian)(dian)(dian)池(chi)在(zai)(zai)不(bu)(bu)(bu)降低流明(ming)(亮(liang)度(du))的(de)(de)情況下就(jiu)可以(yi)亮(liang)一(yi)整晚(10-12小時(shi)沒問(wen)題),我(wo)去(qu)年(nian)改裝(zhuang)的(de)(de)8頭LED燈加(jia)了二(er)塊(kuai)1500毫安(an)的(de)(de)舊手(shou)機電(dian)(dian)(dian)池(chi),連續用三個(ge)晚上(shang)沒問(wen)題,而且(qie)流明(ming)度(du)更(geng)穩定。鋰電(dian)(dian)(dian)池(chi)是目前我(wo)們常(chang)見的(de)(de)各(ge)類(lei)電(dian)(dian)(dian)池(chi)中重量(liang)最輕的(de)(de),我(wo)那(nei)只(zhi)加(jia)了二(er)塊(kuai)手(shou)機電(dian)(dian)(dian)池(chi)的(de)(de)燈頭還不(bu)(bu)(bu)到一(yi)斤(jin)重,比照亮(liang)同等時(shi)間(jian)的(de)(de)鉛酸蓄電(dian)(dian)(dian)池(chi)輕了4/5充足電(dian)(dian)(dian)擱(ge)置一(yi)年(nian)也不(bu)(bu)(bu)會跑光電(dian)(dian)(dian),即使(shi)一(yi)年(nian)不(bu)(bu)(bu)充電(dian)(dian)(dian)也不(bu)(bu)(bu)會壞

以上就是(shi)天成小(xiao)編(bian)對(dui)于led燈珠變夜光(guang)燈 問(wen)題和相關問(wen)題的(de)解答了,希(xi)望(wang)對(dui)你有用 【責(ze)任編(bian)輯:燈漂(piao)亮(liang)】

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