Ophthalmic lens and ophthalmic lens treatment method
AssigneeEssilor International
InventorPeiqi Jiang
Life of this patent
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Abstract
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.
Claims15
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%.
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%.
Dependencies are inferred from the claim text.