B29D11/00432

FUNCTIONAL WAFERS BY 3D PRINTING
20230147427 · 2023-05-11 ·

A method of manufacturing an optical lens (417, 901), comprising: obtaining (S301) a transparent thermoplastic (TP) carrier (410, 1210) with at least one smooth surface; printing (S305), via a 3-D printer on the side opposite to the at least one smooth surface of the transparent TP carrier (410, 1210), at least one transparent layer (420, 1220) using a thermoplastic filament (403), each transparent layer (420, 1220) having a predetermined light filtering property, thereby forming a functional layer (420, 1220); and performing (S307) an injection over-molding process (415) to fuse bond the functional layer (420, 1220) to a thermoplastic substrate thereby forming the optical lens, wherein the at least one smooth surface of the transparent TP carrier (410, 1210) forms a smooth surface of the manufactured optical lens (417, 901).

Method For Printing An Optical Component Utilizing Layer Compensation
20230135074 · 2023-05-04 ·

The present invention refers to a Method for printing a three-dimensional optical structure (1), wherein the three-dimensional optical structure (1) is built up from layers (L) of printing ink deposited through targeted placement of droplets of printing ink at least partially side by side in consecutive printing steps, wherein in order to at least partially compensate for deviations of a thickness from a nominal thickness of at least one layer (2), possible deviations are determined prior to printing said layer (2) and depositing the printing ink is controlled dependent on the determined possible deviations during printing of said layer (2).

Method of making an eyeglass lens

The invention relates to a spectacle lens (3) which comprises at least one structural element (SE) on the outer edge (4) and/or the front or rear surface thereof, wherein the at least one structural element (SE) is formed by a material which is applied in liquid form on the edge (3) and/or the front/rear surface of the spectacle lens (4), is connected in a bonded manner to the lens and is hardened chemically or by radiation. The invention further relates to a method for the production thereof.

LENS SYSTEMS AND METHODS OF MANUFACTURE

Systems and methods according to one or more embodiments are provided for annealing a chalcogenide lens at an elevated temperature to accelerate release of internal stress within the chalcogenide lens caused during a molding process that formed the chalcogenide lens. In particular, the annealing process includes gradually heating the chalcogenide lens to a dwell temperature, maintaining the chalcogenide lens at the dwell temperature for a predetermined period of time, and gradually cooling the chalcogenide lens from the dwell temperature. The annealing process stabilizes the shape, the effective focal length, and/or the modulation transfer function of the chalcogenide lens. Associated optical assemblies and infrared imaging devices are also described.

Method and an Assembly for Removing an Intraocular Lens from an Injection Molded Mold Half

A method and assembly for removing an intraocular lens from an injection molded mold half. With the method and the assembly, first spill ring material is removed from the mold half. Subsequently, the mold/lens-assembly is subjected to an oscillating mechanical load without substantial deformation of at least a part of the mold half that is in direct contact with the lens body. The oscillating mechanical load has an oscillation frequency which is in a range that excites the mold/lens-assembly to break bonds between the intraocular lens and the mold half. After that, a static mechanical push force is exerted on the bottom side of the mold half to at least partly separate the intraocular lens from the mold half.

APPARATUS, SYSTEMS, AND METHODS OF FORMING OPHTHALMIC LENS COMPONENTS WITH SOLUBLE CORES AND MOLDS

Disclosed are methods, systems, and apparatus for manufacturing an ophthalmic lens component. In one embodiment, a method includes placing at least part of a soluble core component on a first molding surface of a first mold component or a second molding surface of a second mold component, mating the second mold component to the first mold component to form an assembled mold comprising a mold cavity, introducing a lens component material into the mold cavity, curing the lens component material within the assembled mold to form a molded lens component, and immersing the molded lens component in a solvent to dissolve the soluble core component. At least one of the first mold component and the second mold component can also be made of a soluble material.

System and method for processing of optical lenses
09840373 · 2017-12-12 · ·

A system and a method for processing of optical lenses in which the processing takes place by different processing apparatus between which there is a respective transfer apparatus. The transfer apparatus are used both for longitudinal and also cross conveyance. Each processing apparatus has its own conveyor apparatus which is controlled by the processing apparatus itself. The transfer apparatus are controlled by a central transfer control.

Eyeglass of 3D glasses and fabrication method thereof, and 3D glasses

An eyeglass of a 3D glasses, a fabrication method thereof and a 3D glasses are provided. The eyeglass of the 3D glasses comprises: a substrate (2), configured to have a 3D function; and a lens (1) having a converging or diverging function, laminated on the substrate. The eyeglass of the 3D glasses and the 3D glasses have a myopic or hyperopic function simultaneously.

Supply Device for a Molding Device, Molding Line and Method for Controlling Said Molding Line

The invention relates to a device (1) for supplying at least one molding device (2) with a polymerizable mixture of at least two reactants.

According to the invention, said supply device comprises: a buffer tank (10) suitable for receiving said polymerizable mixture via an inlet (101) of said buffer tank, a supply circuit (11), looped with said buffer tank, to convey the polymerizable mixture to an inlet (110) of said at least one molding device and including, beyond said inlet of the molding device, a return pipe (115) connected to the inlet of the buffer tank for sending a portion of the polymerizable mixture from said return pipe, and a filling pipe (42) of said buffer tank, connected to said inlet of said buffer tank, separate from the return pipe, wherein said buffer tank is also suitable for receiving said polymerizable mixture or at least one of said reactants from said filling pipe.

OPHTHALMIC LENS TREATMENT SYSTEM
20170348928 · 2017-12-07 ·

An ophthalmic lens treatment planning System receives lens and ophthalmic lens treatment information from a customer lens order, identification of available equipment to apply ophthalmic lens treatment(s) from the customer order, and performance and parameters of the available equipment. The ophthalmic lens treatment planning System formulates an optimal ophthalmic lens treatment plan to be implemented by the available equipment to apply the ophthalmic lens treatment(s) from the customer order to the lens. Following application of the optimal ophthalmic lens treatment plan to the lens, the resulting lens may be measured to provide last run results and the last run results may be fed back to the ophthalmic lens treatment planning System to provide further performance and parameters of the available equipment to the ophthalmic lens treatment planning System.