Provided is a method for producing a resin lens, comprising: A) mixing a polyisocyanate, a modified isocyanate, a catalyst and a release agent, and performing vacuum defoaming at 0˜30° C. for 10˜90 min to obtain a material a; B) mixing the material a with a sulfur-containing compound, and performing vacuum defoaming at 15˜20° C. for 20˜120 min to obtain mixed monomers; and C) completing casting of the mixed monomers, and curing to obtain a resin lens. The present disclosure uses polyisocyanate and a modified isocyanate at the same time to prepare a resin lens with higher glass transition temperature and higher surface hardness without producing bank mark and edge fogging. The present disclosure further provides a method for producing modified isocyanate. The obtained modified isocyanate used with polyisocyanate further improves the glass transition temperature and surface hardness of the resin lens without producing bank mark and edge fogging.

A spectacle lens blank has an optically finished surface and a cylinder edge surface, and a protective film applied on the optically finished surface. The protective film is also arranged on the cylinder edge surface. A method for producing a spectacle lens from a spectacle lens blank having an optically finished surface and a cylinder edge surface, in which a protective film is applied onto the optically finished surface is also disclosed. Procedurally, the protective film is also applied onto the cylinder edge surface. Lastly, a device for producing a spectacle lens from a spectacle lens blank having an optically finished surface and a cylinder edge surface is disclosed, in which a protective film is applied onto the optically finished surface. An application unit for applying the protective film onto the cylinder edge surface is also disclosed.

A machine for disassembling a lens mold assembly including a first mold part, a second mold part, and a molded-lens sandwiched therebetween. The machine includes a centering unit to center the lens mold assembly. The machine includes a disassembling module having a mold engagement mechanism to engage the first and second mold parts to clamp and move the lens mold assembly. The disassembling module includes a molded-lens holder mechanism having at least two clamping members to clamp the molded-lens of the lens mold assembly. The machine includes an alignment guidance module to detect relative positions between the molded lens of the lens mold assembly and the molded-lens holder mechanism to align the molded lens for clamping by the molded-lens holder mechanism. The mold engagement mechanism is configured to hold the first and second mold parts individually and to separate the first and second mold parts from the molded lens.

A lens positioning mechanism includes: a member holding unit that has a function of holding a second surface of a lens member having a first surface, which is a convex optical surface, and the second surface, which is an optical surface facing the first surface, and biasing the held lens member toward a side of the first surface; and an attitude control unit that regulates edge positions of a plurality of portions on the first surface of the lens member biased by the member holding unit to position the lens member in a predetermined attitude.

A method for manufacturing an ophthalmic lens using an additive manufacturing technology, the ophthalmic lens having at least one useful optical surface and a peripheral region surrounding at least in part the useful optical surface, includes the steps of: providing a support; manufacturing a part of the ophthalmic lens including a portion of the peripheral region, and being in contact with the support by the portion of the peripheral region so that the support bears the part of the ophthalmic lens being manufactured while the useful optical surface is free from any contact with the support. A support designed to bear an ophthalmic lens and a manufacturing system are also described.

This application discloses a device and a method for separating optical adhered films. The device for separating optical adhered films includes: a separating workbench configured to separate optical films; a suction nozzle configured to adsorb the optical film; a driving device configured to drive the suction nozzle and the separating workbench. The suction nozzle includes a first group of suction nozzles and a second group of suction nozzles. The first group of suction nozzles and the second group of suction nozzles are arranged opposite to each other. The method for separating optical adhered films includes the following steps: separating, when the detection structure for two optical adhered films detect that at least two optical films are adhered to each other, the optical adhered films by using a first group of suction nozzles and a second group of suction nozzles.

The present disclosure includes systems, devices, and methods for preventing contamination during formation of an optical article. In some implementations, a device for preventing contamination of a mold cavity during injection molding of a function wafer includes a containment band having an annular base that defines a first opening configured to receive a functional wafer. The device also includes one or more sidewalls that project a first direction from and surround at least a portion of the first opening. The one or more sidewalls may be configured such that, during formation of an optical article, a first portion of the functional wafer is in contact with the one or more sidewalls.

The present disclosure includes systems, apparatuses, and methods for an optical system. In some aspects, the systems and devices may produce a wafer for use in the manufacture of an optical article. The wafer includes a laminate having a first layer that includes a first matrix material having a lower surface and an upper surface opposite the lower surface and a second layer that includes a second matrix material, the second layer is coupled to the first layer and covers at least a portion of the lower surface or the upper surface. The first layer includes a first thickness at a central portion that is greater than a second thickness at an edge portion.

A lens with antifog coating having an improved properties and methods of forming such a coating are disclosed. The lens with an antifog coating may include: a lens composed of a transparent optical material; a hydrophilic layer applied only on a first surface of the lens; and a hydrophobic nanolayer applied on top of the hydrophilic layer, In some embodiments, the hydrophobic nanolayer may be applied only on top of the hydrophilic layer applied on the first surface of the lens.

Optical films that are thermo-formed to create a curved surface while maintaining a fixed magnitude and orientation of the local in-plane birefringence. While perhaps not practical to maintain the magnitude of the differences in index of refraction between three orthogonal axes in a material undergoing an arbitrary deformation, it is possible to maintain the difference between two of the indices under certain conditions. This enables the incorporation of functional retarder layers into curved structures such as lenses and reflective polarizer films. Furthermore, it enables the minimization of retardation induced in the surrounding initially isotropic substrates.