¹®Á¦°¡ focal length (f) = 8 mm
object distance from lense (u) = 8mm ¶ó°í Á¦½ÃµÇ¾î ÀÖ½À´Ï´Ù. ¹®Á¦¿¡¼ image ´Â ¾îµð¿¡¼ Çü¼ºÀÌ µÇ´Â°¡? ¶ó´Â Áú¹®ÀÌ¿´½À´Ï´Ù.
´Ôµéµµ ¾Ë´Ù½ÃÇÇ image distance ±¸ÇÏ´Â°Ç ±²ÀåÈ÷ ½¬¿îµ¥¿ä... °ø½ÄÀ» ±×´ë·Î Àû¿ëÇغ¸¸é
1/f = 1/u + 1/v °¡ µÇ°í
0 = 1/v°¡ µÇ¼ °á±¹ V=0 ÀÌ ³ª¿À°Ô µË´Ï´Ù.
¿©±â¼ Àú´Â ´äº¯À» °Å±â¿¡´Â image°¡ Çü¼ºÀÌ µÇÁö ¾Ê´Â´Ù. ÀÌÀ¯¸¦ Á¦°¡ the focal point and object distance are in the same spot ¿¡ ÀÖ´Ù¶ó°í Àû¾ú´Âµ¥ ±³¼ö´ÔÀÌ ´äÀº ¸ÂÁö¸¸ ¼³¸íÀÌ Æ²·È´Ù°í Çϼ̾î¿ä.
ÀÌ·±°æ¿ì ¾î¶»°Ô ¼³¸íÀ» ÇØ¾ß ´ä°ú ¸ÅÄ¡°¡ µÇ³ª¿ä?