Abstract: A UV (ultraviolet) curing apparatus for a contact-lens polymerization process is provided. A UV curing module is equipped for the mold cavities of contact-lens curing molds, including a plurality of first UV light sources arranged above the mold cavities and a plurality of second UV light sources arranged below the mold cavities. A plurality of light output areas of a first light guide device guides the light beams emitted by the first UV light sources to illuminate upper light receiving surfaces of the molds. A plurality of reflecting plates of a second light guide device reflects and scatters the light beams emitted by the second UV light sources to lower light receiving surfaces of the molds. Thereby, the contact-lens polymer inside the molds is uniformly cured, and the yield is raised.

Abstract: A UV (ultraviolet) curing apparatus for a contact-lens polymerization process is provided. A UV curing module is equipped for the mold cavities of contact-lens curing molds, including a plurality of first UV light sources arranged above the mold cavities and a plurality of second UV light sources arranged below the mold cavities. A plurality of light output areas of a first light guide device guides the light beams emitted by the first UV light sources to illuminate upper light receiving surfaces of the molds. A plurality of reflecting plates of a second light guide device reflects and scatters the light beams emitted by the second UV light sources to lower light receiving surfaces of the molds. Thereby, the contact-lens polymer inside the molds is uniformly cured, and the yield is raised.

Abstract: A UV (ultraviolet) curing apparatus for a contact-lens polymerization process is provided. A UV curing module is equipped for the mold cavities of contact-lens curing molds, including a plurality of first UV light sources arranged above the mold cavities and a plurality of second UV light sources arranged below the mold cavities. A plurality of first light output areas of a first light guide device guides the light beams emitted by the first UV light sources to illuminate upper light receiving surfaces of the molds. A plurality of second light output areas of a second light guide device guides the light beams emitted by the second UV light sources to illuminate lower light receiving surfaces of the molds. Thereby, the contact-lens polymer inside the molds is uniformly cured, and the yield is raised.

Abstract: A lens for slowing or preventing the development of myopia includes an optical portion and a peripheral portion surrounding the optical portion. The distribution of the refractive power of the optical portion is expressed by an exponential growth function. Assume that a specific condition is satisfied. The farther away from the center of the lens, the greater the change in the refractive power. Thus, a defocus area is formed to control and prevent eye myopia. Besides, the distribution of refractive power can provide a larger visible area in order to effectively avoid visual instability caused by lens sliding.

Abstract: The present invention discloses a method and mold for fabricating a contact lens and controlling excess material and a method for fabricating the same mold and comprises steps: fabricating a first mold having a mold cavity and a side wall formed around the rim of the mold cavity and having protuberances, fabricating a second mold having a round protrusion; using a disc-shape cutter to cut the side wall and protuberances and form a groove; placing a liquid contact lens material in the mold cavity; matching the round protrusion with the mold cavity to make the liquid contact lens material have a spherical shell shape with the curvature of the round protrusion and make the residual material flow to the groove and between two protuberances. Thereby, all the excess material are attached to the first mold and separated together with the first mold from the second mold in demolding.

Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of penta(alkanol)alkoxy disiloxane, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.

Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of penta(alkynol)alkoxy solixane, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.

Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of TEOS, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.