MICRO LENS ARRAY AND METHOD OF MANUFACTURING REPLICATION MOLD FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a micro-lens array having a large viewing field angle. SOLUTION: The micro-lens array is set at 0.1≤Dsav/D≤0.3 where D is the micro-lens bottom face width obtained by halving the summation of the maximum width and the minimum width of the bottom face on the lines passing the center of the micro-lens bottom face when the micro-lens 12a bottom face is other than the perfect circle or the micro-lens bottom face diameter when the micro-lens bottom face is the perfect circle; Ds is the sub-lens bottom face width obtained by halving the summation of the maximum width and the minimum width of the bottom face on the lines passing the center of the sub-lens bottom face when the sub-lens 12b bottom face is other than the true circle or the sub-lens bottom face diameter when the sub-lens bottom face is the true circle; Dsav is the average sub-lens bottom face width obtained by averaging a plurality of the sub-lens bottom face widths Ds or the average sub-lens bottom face diameter obtained by averaging a plurality of the sub-lens bottom face diameters Ds. COPYRIGHT: (C)2005,JPO&NCIPI