LED \u00e7ipleri test edilirken dikkate al\u0131nan en \u00f6nemli iki kriter (LED voltaj\u0131 gibi di\u011ferlerinin yan\u0131 s\u0131ra) \u015funlard\u0131r\u00a0renk s\u0131cakl\u0131\u011f\u0131<\/strong><\/a>\u00a0ve\u00a0parlakl\u0131k<\/strong><\/a>.<\/p>\n David MacAdam<\/strong><\/a>, Bir renk bilimci olan Roth, 20. y\u00fczy\u0131l\u0131n ortalar\u0131nda insan renk alg\u0131s\u0131 \u00fczerine yapt\u0131\u011f\u0131 ara\u015ft\u0131rmalar\u0131 tan\u0131tm\u0131\u015ft\u0131r. G\u00f6rsel g\u00f6zlemlerdeki renk farkl\u0131l\u0131klar\u0131n\u0131 incelemi\u015f ve bunlar\u0131 bir renk uzay\u0131 \u00fczerinde e\u015flemi\u015ftir. En yayg\u0131n kullan\u0131lan\u0131 1931 tarihli CIE renk uzay\u0131d\u0131r (soldaki resimde g\u00f6sterildi\u011fi gibi).<\/p>\n Grafik, renk uzay\u0131n\u0131 bir X-Y-Grafik olarak g\u00f6sterir, x ve y de\u011ferleri bir \u0131\u015f\u0131k kayna\u011f\u0131n\u0131n kromatikli\u011fini tan\u0131mlar.<\/p>\n MacAdam'\u0131n g\u00f6zlemcileri benzer renkleri \u201cneredeyse ayn\u0131 olanlar\u201d olarak k\u00fcmeleme e\u011filimindeydi. MacAdam k\u00fcmenin kromatikli\u011fini \u00f6l\u00e7t\u00fc\u011f\u00fcnde, renk diyagram\u0131nda elipsler olu\u015fturdular. MacAdam elipsleri (Standart Sapma Renk E\u015fle\u015fmesi olarak da bilinir), siyah bir nokta olarak g\u00f6sterilen (sa\u011fdaki resimde g\u00f6sterildi\u011fi gibi) orijinal \u0131\u015f\u0131k kayna\u011f\u0131ndan farkl\u0131 olacak kadar fark edilebilir alan\u0131 temsil eder.<\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n LED Binning, bir referans kromatiklik noktas\u0131n\u0131n merkezi etraf\u0131na yerle\u015ftirilen MacAdam elipslerine dayan\u0131r. Kromatiklik diyagram\u0131nda, insan g\u00f6z\u00fc taraf\u0131ndan merkezdeki renkten ay\u0131rt edilemeyen t\u00fcm renklere sahip alanlar\u0131 g\u00f6r\u00fcnt\u00fcler. Bu alanlara g\u00f6re gruplanan LED'lerin tek tip \u0131\u015f\u0131k renklerine sahip olmas\u0131 garanti edilir.<\/p>\n Renk bir \u0131\u015f\u0131\u011f\u0131n s\u0131cakl\u0131\u011f\u0131<\/a> kayna\u011f\u0131 idealize edilmi\u015f bir siyah cisim radyat\u00f6r\u00fc ile kar\u015f\u0131la\u015ft\u0131r\u0131larak tan\u0131mlan\u0131r. Siyah cisim \u0131s\u0131t\u0131ld\u0131\u011f\u0131nda g\u00f6r\u00fcn\u00fcr \u0131\u015f\u0131k yayar. Ne kadar \u00e7ok \u0131s\u0131t\u0131l\u0131rsa, renk s\u0131cakl\u0131\u011f\u0131 o kadar so\u011fuk olur. S\u0131cakl\u0131k ne kadar d\u00fc\u015f\u00fckse, radyat\u00f6r\u00fcn \u0131\u015f\u0131k rengi o kadar s\u0131cak olur. Siyah g\u00f6vdeli bir radyat\u00f6r\u00fcn s\u0131cakl\u0131k aral\u0131\u011f\u0131na siyah g\u00f6vde \u00e7izgisi denir. \u0130deal beyaz renk kromatiklik de\u011ferleri bu \u00e7izgi \u00fczerinde yer al\u0131r.<\/p>\n \u00dcretim s\u00fcre\u00e7leri ve malzeme nedeniyle, bir \u0131\u015f\u0131k kayna\u011f\u0131n\u0131n renk s\u0131cakl\u0131\u011f\u0131 siyah g\u00f6vde e\u011frisi \u00fczerinde yer almaz. I\u015f\u0131k rengi korelasyonlu renk s\u0131cakl\u0131\u011f\u0131 olarak tan\u0131mlan\u0131r ve siyah g\u00f6vde e\u011frisinde bulunmayan ancak siyah g\u00f6vde e\u011frisini kesen \u00e7izgilere kar\u015f\u0131l\u0131k gelen renk s\u0131cakl\u0131\u011f\u0131n\u0131n bir yakla\u015f\u0131m\u0131d\u0131r.<\/p>\n Binning sistemleri, seri \u00fcretim s\u0131ras\u0131nda renklilik ve \u0131\u015f\u0131k ak\u0131s\u0131 gibi LED performans\u0131ndaki varyasyonlar\u0131 y\u00f6netir. \u00dcreticiler, \u00fcretim sonu\u00e7lar\u0131na uyan binning sistemlerini geli\u015ftirme e\u011filimindedir. Bu nedenle NEMA SSL 3-2010 \u201cGenel Ayd\u0131nlatma i\u00e7in Y\u00fcksek G\u00fc\u00e7l\u00fc Beyaz LED Binning\u201d yay\u0131nlam\u0131\u015ft\u0131r. Bu belge minimum b\u00f6lmelendirme alanlar\u0131n\u0131 ve aral\u0131klar\u0131n\u0131 standartla\u015ft\u0131rmaktad\u0131r (a\u015fa\u011f\u0131daki resme bak\u0131n\u0131z).<\/p>\n K\u00fc\u00e7\u00fck bir gruplama se\u00e7mek genel bir \u00e7\u00f6z\u00fcm de\u011fildir. \u00dcretim s\u00fcreci varyasyonlarla ba\u011flant\u0131l\u0131d\u0131r. K\u00fc\u00e7\u00fck bir gruplama karar\u0131, ayn\u0131 \u00fcretim \u00f6rne\u011findeki di\u011fer t\u00fcm LED'lerin di\u011ferlerine sat\u0131lmas\u0131 zor oldu\u011fundan ola\u011fan\u00fcst\u00fc maliyetlere yol a\u00e7acakt\u0131r. m\u00fc\u015fteriler<\/a>. Binning i\u00e7in do\u011fru ve yanl\u0131\u015f yakla\u015f\u0131m belli de\u011fildir. \u00d6ncelikle \u00f6zel \u00fcr\u00fcn\u00fcn\u00fcz veya projeniz i\u00e7in hangi renk varyasyonlar\u0131n\u0131n kabul edilebilir oldu\u011funu belirlemelisiniz.<\/p>\n\n
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<\/p>\nRenk S\u0131cakl\u0131\u011f\u0131 ve \u0130li\u015fkili Renk S\u0131cakl\u0131\u011f\u0131<\/h2>\n
Uygulama<\/h3>\n
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