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US 2016/0031126 A1Published application
Systems and methods for the production of contact lenses
AssigneeMenicon Singapore Pte Ltd.
InventorStephen D. Newman
Life of this patent
Estimating the term…
Abstract
An apparatus for spin casting lenses includes a rotatable tube, the rotatable tube defining a longitudinal cavity, wherein the longitudinal cavity is configured to receive molds. According to one exemplary embodiment, the rotatable tube is made of metal and includes a plurality of apertures configured to permit the transmission of actinic radiation.
Claims21
An apparatus for spin casting lenses, comprising:
- a rotatable tube having a first end and a second end connected by a longitudinal surface that defines an interior longitudinal cavity configured to receive at least one contact lens mold;
- and
- an actinic radiation source disposed adjacent to the rotatable tube;
- wherein the rotatable tube includes at least one portion defining at least one aperture, wherein the at least one aperture extends through the longitudinal surface of the rotatable tube to the interior longitudinal cavity, wherein the at least one aperture is configured to permit the transmission of actinic radiation from the actinic radiation source into the interior longitudinal cavity during rotation of the tube, wherein the at least one portion is at least partially made of a material that is opaque to actinic radiation.
1 more element
(canceled)
9-12. (canceled)
A system for spin casting a lens comprising:
- a first curing device in the form of a rotatable tube, the rotatable tube having a first end and a second end connected by a longitudinal surface that defines an interior longitudinal cavity configured to receive at least one contact lens mold, wherein the rotatable tube includes at least one portion defining at least one aperture, wherein the at least one aperture extends through the longitudinal surface of the rotatable tube to the interior longitudinal cavity, wherein the at least one aperture is configured to permit a transmission of actinic radiation from an actinic radiation source into the interior longitudinal cavity during rotation of the tube, wherein the at least one portion is at least partially made of a material that is opaque to actinic radiation;
- and wherein the rotatable tube is configured to partially cure a polymerizable liquid contained in the at least one contact lens mold;
- and
- at least one second curing device, the second curing device being configured to finalize the curing of the polymerizable liquid contained in the at least one contact lens mold.
1 more element
(canceled)
Dependencies are inferred from the claim text.