Patent ID: 8454864

Claim:
A method for making a mold for forming an anti-flare lens, the lens including an optically active part and an optically inactive part surrounding the optically active part, the method comprising: providing a mold core blank having a bottom surface and a top surface, machining the bottom surface into a first surface portion, a second surface portion, and an annular surface portion, the second surface portion being located at a center of the mold core blank, the first surface portion surrounding the second surface portion, the annular surface portion being located between the second surface portion and the first surface portion, the annular surface portion connecting the second surface portion and the first surface portion; roughening the first surface portion to form a roughened molding surface for forming the optically inactive part; precisely machining the second surface portion to form a smooth molding surface for forming the optically active part; and precisely machining the annular surface to form a smooth transition surface, which smoothly connects the smooth molding surface to the roughened molding surface.