Patent ID: 9664820
Date: 2017-05-30
CPC Classifications: B05D,B29D,G02B,G02C

Claim:
1. A method for manufacturing an optical lens, comprising the steps of: obtaining a first maximum inclination angle and a second maximum inclination angle of an axis of an optical lens substrate, the first maximum inclination angle being a maximum inclination angle in which a peripheral edge of a lens surface of the optical lens substrate remains positioned at the highest position of the lens surface when the optical lens substrate is inclined, from the position in which the axis is horizontal, in the direction in which the lens surface formed from a convex curved surface is directed upward, and the second maximum inclination angle being a maximum inclination angle in which the peripheral edge of the lens surface remains positioned at the lowest position of the lens surface when the optical lens substrate is inclined, from the position in which the axis is horizontal, in the direction in which the lens surface formed from the convex curved surface is directed downward; as a first curing condition, setting an angle of the axis of the optical lens substrate with respect to a horizontal direction within an angle range between the first maximum inclination angle and the second maximum inclination angle; as a second curing condition, rotating the optical lens substrate around the axis at a rotational speed of 15 to 50 RPM at which a coating solution on the lens surface of the optical lens substrate is held in a coating position; and when the first curing condition and the second curing condition are satisfied, curing the coating solution applied to the lens surface of the optical lens substrate; and coating the coating solution onto the lens surface of the optical lens substrate by a spray coat method before the curing step.