| 摘要 |
<p>To manufacture a photochromic lens by uniformly applying a coating liquid having a photochromic function without leaving an uncoated area, with a minimum necessary coating amount. There is provided a manufacturing method of the photochromic lens for dripping and applying a coating liquid 9 having the photochromic function onto a coating surface 2 of a spectacle lens, while rotating a spectacle lens 1, and forming a photochromic film having the photochromic function on the coating surface, comprising dripping (ring-shaped drip part 25) the coating liquid in a ring shape in the vicinity of an outer circumference on the coating surface of the spectacle lens, and thereafter dripping (spiral-shaped drip part 26) the coating liquid in a spiral shape toward a geometrical center or an optical center of the spectacle lens from the vicinity of the outer circumference, wherein the coating surface has a convex curved shape, and a viscosity of the coating liquid is 25 to 500cps at 25°C.</p> |
