A method for producing a semi-finished spectacle lens and a semi-finished spectacle lens includes identifying the semi-finished spectacle lens by applying a removable sticker having a unique code to the semi-finished spectacle lens. The semi-finished spectacle lens has an embossed code that is engraved into the semi-finished spectacle lens. The sticker is applied to at least partially cover the embossed code. The sticker can be applied directly onto the semi-finished spectacle lens early in the manufacturing process, for example immediately after molding or injection molding. The sticker can also be applied to the semi-finished spectacle lens before further surface treatment is carried out.

An imprinting apparatus includes a first conveyer unit, a flexible imprinting mold film and a driving roller set. The first conveyer is adapted to convey a workpiece to a working region of the imprinting apparatus. The flexible imprinting mold film has imprinting segments. At least one of the imprinting segments is located in the working region. The workpiece is adapted to be imprinted in the working region through the corresponding imprinting segment. The flexible imprinting mold film is partially rolled around the driving roller set, the imprinting segment located in the working region is expanded from the driving roller set, and the driving roller set is adapted to drive the flexible imprinting mold film, such that at least another one of the imprinting segments rolled around the driving roller set is expanded from the driving roller set and moved to the working region. Besides, an imprinting method is also provided.

This invention relates to a die tool, a device and a method for producing, in particular embossing, a monolithic lens wafer that has a large number of microlenses.

Disclosed is a method implemented by computer for determining a lens blank intended to be used for the manufacturing of a finished optical article. The method includes: —a virtual volume data determining step, during which virtual volume data are determined based at least on finished optical article data representative of the volume of the finished optical article and over-thickness data representative of over-thickness requirements, the virtual volume data are determined so that the virtual volume defined by the virtual volume data includes the volume of the finished optical article volume of the finished optical article and the over-thickness, —a lens blank determining step, during which a lens blank is determined based on the virtual volume data so as to include the virtual volume defined by the virtual volume data.

Techniques for generating electronics components that operate free of unwanted distortions such as edge diffraction and unwanted phase jumps are described. A modified production master or a modified working stamp can be implemented to generate an electronic or optical component having structures that are positioned within a desired distance from a planar surface. A production master or a working stamp is modified in dependence upon a comparison of an identified distance for each respective structure to the planar surface and a desired distance. The modified production master or the modified working stamp generates the electronic or optical component by positioning the structures in accordance with the desired distance. By positioning the structures in accordance with the desired distance, electronic components generated using the modified production master or the modified working stamp minimize distortions, such as a phase jump between the structures.

A method and system for identifying a given geometrical feature of an optical component or semi-finished ophthalmic lens blank, where an optical component is made of an organic material that can emit light at an emission wavelength λ.sub.e when being lighten at an illumination wavelength λ.sub.i different from the emission wavelength λ.sub.e, a surface of the optical component is illuminated with an incident light beam including at least light at the illumination wavelength but devoid from light at the emission wavelength, light emitted at the emission wavelength by the illuminated surface is collected to build an image of the surface, and the surface image is processed to apply metrics to compare the image with reference data specific to the given geometrical feature.

Disclosed is a method for manufacturing an ophthalmic lens including a substrate and a functional film securely fastened to a curved face of the substrate. This method includes a method for gluing the initially flat functional film to the curved face. To ensure that the functional film when securely fastened to the curved face filters a preset band of wavelengths centered on a wavelength denoted λp, multiple functional films are preselected; two knowledge bases are established experimentally; a film is selected, using the two knowledge bases, from the plurality of preselected films, the wavelength λi′ on which is centered the band of wavelengths that this film filters for a certain degree of deformation being equal to λp when the degree of deformation is that given for the curvature in question; and the gluing method is implemented in order to securely fasten the selected film to the curved face.

Device and method for producing a plurality of microlenses from a lens material. The method includes: applying lens material intended for the embossing of the microlenses to a plurality of first lens molds distributed on a first embossing side of a first die for embossing of the microlenses, moving the first die and a second die located essentially parallel, in an X-Y plane, and opposite the first die, on top of one another in a Z-direction running essentially perpendicular to the X-Y plane, embossing the microlenses by shaping and curing the lens material, the shaping taking place by moving the first and second embossing sides on top of one another, up to a thickness D.sub.1 of the lens material in the Z-direction, wherein the lens material of each microlens at least during curing is separate from the lens material of each microlens which is adjacent in the X-Y plane.

An optical bonding machine is provided, including a transparent datum located within the optical bonding machine, wherein the transparent datum supports a first substrate, a robotic placement head configured to pick up a second substrate and place the second substrate into contact with the first substrate, on the transparent datum, a camera disposed proximate the transparent datum, the camera capturing a video of a flow of an optically clear adhesive between the first substrate and the second substrate, and a curing source disposed proximate the transparent datum, the curing source emitting UV rays that pass through the transparent datum and the first substrate to cure an optically clear adhesive between a bonded substrate comprising the first substrate, the optically clear adhesive, and the second substrate. An associated method is also provided.

A method for determining residual moisture on and/or within a lens forming surface of a mold half includes the steps of carrying out an infrared inspection of at least a central portion of the lens forming surface of the mold half with the aid of an infrared camera, collecting measurement values resulting from the infrared inspection, which represent a degree of residual moisture on and/or within the lens forming surface, comparing the collected measurement values with a predefined threshold value representing a maximum tolerable residual moisture on and/or within a lens forming surface of a reference mold half, and, upon detection of an exceedance of the predefined threshold value representing the maximum tolerable residual moisture, preventing the inspected mold half from being used further.