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Numerical Aperture(N.A) : ´ë¹°·»ÁîÀÇ ¼º´ÉÀ» Ç¥½ÃÇÏ´Â °ªÀ¸·Î ºÐÇØ´Â, ÃÊÁ¡ÀÇ ½Éµµ, Çö¹Ì°æÀÇ ±¤ÇÐÀû ½Ã½ºÅÛ¿¡ ÀÇÇØ »ý±ä »óÀÇ ¹à±â¸¦ °áÁ¤ÇÏ´Â ´ÜÀ§ÀÔ´Ï´Ù.
N.A=nSin(A.A/2) (n:´ë¹°·»Áî¿Í ½Ã·á»çÀÌ °ø°£ÀÇ ±¼Àý·ü)
 
 
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