Patent ID: 6310727
Filing Date: 2001-10-30
Classification: G02B,H01L

Abstract:
A beam homogenizer comprising:a first optical lens for dividing a light beam into N(n'-1) beams in a vertical direction;a second optical lens for dividing the light beam into (2n+1) beams in a horizontal direction;a third optical lens for recombining the beams that are divided in the vertical and horizontal directions into (n'-1) beams while superimposing the (n'-1) beams so that they are deviated from each other in the horizontal direction; anda fourth optical lens for recombining the beams that are divided in the vertical direction,wherein N is a natural number, n is an integer that is greater than or equal to 3, and n' is an integer that satisfies 3.ltoreq.n'.ltoreq.n.