Patent ID: 7768711

Claim:
A method of manufacturing a lens, said method comprising exposing a photoresist to light using a phase shift mask, wherein the phase shift mask includes layout portions respectively corresponding to pixels and lenses, wherein each of the layout portions has: a light-blocking portion which has a substantially circular shape or a substantially concentric zone shape; a light-transmitting portion which has a substantially circular shape or a substantially concentric zone shape; a phase shift portion which has a substantially circular shape or a substantially concentric zone shape; and a light-blocking frame, wherein light which passes through the phase shift portion is phase-shifted 180 degrees with respect to light which passes through the light-transmitting portion, wherein the light-transmitting portion, the light-blocking portion and the phase shift portion are arranged alternately so as to form concentric circles, and wherein the light-blocking frame corresponds to a whole or a part of a perimeter of the lens.