Functional Layer Application System
AssigneeHOYA Optical Labs of America, Inc.
InventorsDavid Olund, Craig Drury, James Kunkel
Life of this patent
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Abstract
Systems and methods for adding a functional layer to a lens having a plurality of microlenses for inhibition of ametropia. The lens may include defocus incorporated multiple segments (DIMS) having a plurality of microlenses or lenslets producing refraction areas with different refraction forces. Injection molding may be utilized to add a functional layer to such a DIMS lens having a plurality of microlenses or lenslets. The functional layer may add a functional utility to the lens, including but not limited to photochromic functionality, polarization functionality, and the like.
Claims20
A method of fabricating a lens having microlenses with a functional layer, comprising the steps of:
- applying a first temperature to a first side of a mold;
- injecting a material into the mold at a velocity;
- applying a first pack plastic pressure for a first duration of time;
- applying a second pack plastic pressure for a second duration of time;
- and
- allowing the mold to cool.
A method of fabricating a lens having microlenses with a functional layer, comprising the steps of:
- applying a first temperature to a first side of a mold;
- applying a second temperature to a second side of the mold;
- injecting a material into the mold at a velocity;
- applying a first pack plastic pressure for a first duration of time;
- applying a second pack plastic pressure for a second duration of time;
- applying a third pack plastic pressure for a third duration of time;
- and
- allowing the mold to cool.
Dependencies are inferred from the claim text.