Dyeing method of dyeing plastic lens and base body to be used for dyeing plastic lens

Abstract

A dyeing method of dyeing a plastic lens includes: a step of producing a base body to be used for a dyeing operation, the base body being applied with dyeing solutions each containing a dissolved or fine-grained dispersed sublimatable dye to form a dye application area on the base body, and the base body having a first face and a second face and at least the first face including a region having at least one of a good heat absorption coefficient and a good infrared-light absorption coefficient and the second face being formed thereon with the dye application area; a step of placing the lens in a predetermined position in a vacuum vapor-deposition device; a step of placing the base body in the vapor-deposition device so that the dye application area on the second face of the base body faces the lens without contact therewith; and a step of heating the first face of the base body under vacuum in the vapor-deposition device, thereby sublimating the dye of the dye application area to vapor-deposit the sublimated dye on the lens.

Dependencies are inferred from the claim text.