Arimaha bulshada iyo deegaanka
In wax soo saarka ee chips LED, acids inorganic, oxidants, wakiilada isku dhafan, hydrogen peroxide, dareere organic iyo wakiilada kale ee nadiifinta loo isticmaalo habka wax soo saarka substrate, iyo sidoo kale wajiga gaaska organic birta iyo gaaska ammonia loo isticmaalo koritaanka epitaxial, waa sun. iyo wasakhaynta. Kuwani sidoo kale waa walxaha kiimikada caadiga ah ee sida caadiga ah loo isticmaalo soo saarista wareegyada isku dhafan ee semiconductor iyo warshadaha kale. Shirkadaha chip-ka LED-ka ee ka tirsan qaybtan tignoolajiyada sare, tignoolajiyada farsamayntooda iyo habraacooda waa kuwo adag oo waxtar leh, taas oo fududaynaysa in la sameeyo daaweyn aan dhib lahayn.
Qalabka kontoroolka LED-ka (oo loo yaqaan sahayda korantada ee wadista) kama duwana nalalka caadiga ah ee fluorescent, nalalka halide-ka birta ah, iyo ballastyada kale ee elektiroonigga ah, iyo sidoo kale sunta iyo wasakhowga ka soo baxa habka wax soo saarka ee noocyada kala duwan ee alaabta elektiroonigga ah ee caadiga ah.
Qalabka aluminiumka ah ee sida caadiga ah loo isticmaalo ee loogu talagalay nalalka LED-ku waxay la mid yihiin wax soo saarka aluminiumka aluminium-dhaqameedka, iyo sunta iyo wasakhowga ka soo baxa inta lagu jiro habka wax soo saarka ee qolofyada caagga ah ama birta ah ugu yaraan aan si weyn loo kordhin.
Marka la soo koobo, looma baahna in laga walwalo alaabta nalalka semiconductor ee dadku si toos ah ula xiriiraan, iyo sidoo kale arrimaha deegaanka inta lagu jiro habka wax soo saarka.
Welwelka badbaadada shakhsi ahaaneed ee dadka
1. Korontada yar ee LED waa mid aad u ammaan ah oo marin habaabinaysa dadweynaha
Shaqaale badan oo farsamo oo ka tirsan shirkadaha waxay leeyihiin faham qotodheer oo aan dhammaystirnayn oo ku saabsan badbaadada korantada ee alaabada iftiinka LED iyo wadista sahayda korantada, taas oo horseedaysa badbaadada korantada ee alaabooyin badan oo nalalka LED-ka loo qaabeeyey oo la soo saaray oo si buuxda ugu tiirsan badbaadada sahayda tamarta wadista. Si kastaba ha noqotee, go'doominta korantada iyo dahaarka sahayda korantada wadista LED-ka ee taageeraya badan ayaan buuxin shuruudaha caadiga ah. Intaa waxaa dheer, qadar badan oo kor u qaadis ah oo ku saabsan badbaadada korantada yar ee LED waxay marin habaabisaa dadka inay si joogto ah u taabtaan alaabada, taasoo keentay khatarta koronto ee ka sareysa alaabada nalalka dhaqameed ee dadku si miyir la'aan ah u ogaadaan dantooda sare inay khatar tahay oo aysan ku dhicin inay si caadi ah u taabtaan. .
2. Arrinta khatarta ah ee iftiinka buluugga ah
Nooca chip buluuga ah ee cad cad LED wuxuu leeyahay spectrum kaas oo si aad ah ugu urursan spectrum waxyeelada leh marka loo eego nalalka fluorescent, oo ay ku jiraan nalalka tamarta-badbaadiya, taasoo keentay spectrum kaas oo qiyaastii laba jeer waxyeello u leh nalalka fluorescent. Intaa waxaa dheer, barta sii dayntu waa yar tahay, dhalaalkuna waa sarreeyaa, taas oo ka dhigaysa waxyeellada iftiinka buluuga ah mid aad uga muuqda nalalka kale. Si kastaba ha ahaatee, aragtida iyo tijaabada shahaado nabdoonaanta alaabta muddada-dheer, ficil ahaan, in ka yar 5% nalalka miiska LED-ka ee adag ayaa ka sarreeya shuruudaha halista RG1. Laambadahani waxay kaliya u baahan yihiin in lagu calaamadiyo calaamad "Ha eegin isha iftiinka muddo dheer" calaamad meel caan ah oo muujisa marin fogaan ammaan ah si loo xasuusiyo isticmaalayaasha inay buuxiyaan shuruudaha caadiga ah. Waa la iibin karaa oo la isticmaali karaa iyada oo aan wax dhibaato ah, taas oo aad uga ammaan badan in si toos ah loo eego iftiinka qorraxda muddo gaaban. Iyo marka lagu daro daboolka bacaadka, nalalka LED-ka wax dhib ah ma laha. Mana aha LED-yada oo keliya kuwa keenaya arrin badbaado-nololeedka ah. Dhab ahaantii, qaar ka mid ah ilaha iftiinka dhaqameed, sida nalalka halide birta hore, ayaa laga yaabaa inay leeyihiin UV khataro badan oo halis ah.
3. Arrinka Strobe
Waa in la sheegaa in alaabta nalalka LED-ku ay noqon karaan kuwa ugu yar ee bilaashka ah iyo kuwa ugu xasilloon iftiinka soo baxaya (sida kuwa badan oo ku habboon darawallada sahayda korontada DC ee suuqa). Alaabooyinka si liidata loo sameeyay waxay sidoo kale yeelan karaan flicker daran (sida kuwa aan lahayn sahay koronto wadid, halkaas oo korantada AC ay si toos ah u siiso korantada xadhigga LED ama COB-LED), laakiin tani aad ugama duwana dhibaatada flicker ee tuubada toosan. nalalka fluorescent leh ballast inductive. Tani kuma xirna isha iftiinka LED-ka, laakiin waxay ku xiran tahay sahayda korontada iyo isha korontadu ee ku habboon. Isla mabda'a ayaa quseeya flicker-ka alaabta iftiinka ilayska dhaqanka.
Waqtiga boostada: Agoosto-02-2024