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Vented optic power insert bushings and related systems and methods for producing ophthalmic lens molds and ophthalmic lenses
Vented optic power insert bushings and related systems and methods for producing ophthalmic lens molds and ophthalmic lenses
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机译:通风的光焦插入衬套以及用于生产眼科镜片模具和眼科镜片的相关系统和方法
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摘要
Devices, systems, and methods for producing ophthalmic lens molds and molded ophthalmic lenses are described. The present devices, systems, and methods provide venting of gases produced during injection molding of ophthalmic lens molds. With the present devices, systems, and methods, improvements in mold quality, lens quality, mold quality consistency, and lens quality consistency can be achieved compared to existing injection molding devices, systems, and methods. An optic power insert bushing (10) is described and includes a venting system comprising a plurality of channels (24) in the interior sidewall surface (19) that directs gas from a first end of the bushing toward a second end of the bushing. The gas is directed between an optic power insert and an inner sidewall surface of a bushing bore in which the optic power insert is located. The bushing or bushings, and optic power inserts, can be provided as components of an ophthalmic lens mold injection system. Methods of making and using the vented bushings are also described.
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