Ophthalmic lens and ophthalmic lens treatment method
The present disclosure relates to an ophthalmic lens treatment method, comprising heating, in a humidified environment, a semi-finished lens ( 20 ) to a predetermined temperature, the semi-finished lens ( 20 ) containing a base lens ( 10 ) and a film structure ( 2 ) of a predetermined thickness, and surfacing the semi-finished lens ( 20 ) to a predetermined power, wherein the predetermined temperature is a temperature above a softening temperature of the film structure ( 2 ), the humidity of the humidified environment is between 30% and 99% and the predetermined thickness of the film structure ( 2 ) is between 200 μm and 800 μm.
1 . An ophthalmic lens treatment method, comprising:
heating, in a humidified environment, a semi-finished lens to a predetermined temperature, the semi-finished lens containing a base lens and a film structure of a predetermined thickness; and
surfacing the semi-finished lens to a predetermined power to form the ophthalmic lens,
wherein the predetermined temperature is a temperature between 70° C. and 120° C., and a humidity of the humidified environment is between 30% and 99%.
2 . The method according to claim 1 , wherein the humidified heating heats the semi-finished lens for a predetermined time period of at least 3 hours.
3 . The method according to claim 1 , wherein the humidified heating heats the semi-finished lens to, as the predetermined temperature, between 80° C. and 99° C.
4 . The method according to claim 1 , wherein the humidity of the humidified environment is between 50% and 90%.
5 . The method according to claim 1 , wherein the predetermined thickness of the film structure is between 200 μm and 800 μm.
6 . The method according to claim 1 , wherein the film structure includes optical microstructures of between 0.001 μm and 100 μm.
7 . The method according to claim 6 , wherein the optical microstructures include Fresnel structures or diffractive structures.
8 . An ophthalmic lens, comprising:
an annealed semi-finished lens including a base lens and a film structure having a predetermined thickness of between 400 μm and 800 μm, the annealed semi-finished lens being annealed in a humidified environment at a predetermined temperature between 70° C. and 120° C.,
wherein the annealed semi-finished lens is surfaced to a predetermined power to form the ophthalmic lens, and
wherein the humidified environment has a humidity of between 30% and 99%.
9 . The ophthalmic lens according to claim 8 , wherein the annealed semi-finished lens is annealed for a predetermined time period of at least 3 hours.
10 . The ophthalmic lens according to claim 8 , wherein the base lens is at least one of a material selected from the group consisting of polycarbonate, polymethyl methacrylate, polyamide, polyester, cellulose acetate butyrate, and triacetyl cellulose.
11 . The ophthalmic lens according to claim 8 , wherein the base lens or the film structure has properties including at least one selected from the group consisting of an ultraviolet cut filter, a blue light cut filter, an infrared cut filter, a selective wavelength cut dye, a color enhancement dye, a light filter dye, a light polarization filter dye, photochromic properties, and electrochromic properties.
12 . The ophthalmic lens according to claim 8 , wherein the film structure comprises microlenses.
13 . The ophthalmic lens according to claim 8 , wherein the predetermined power is of below −6D.
14 . The method according to claim 1 , wherein the film structure comprises microlenses.
15 . The method according to claim 1 , wherein the predetermined power is of below −6D.