B29D11/0098

DEVICE (SYSTEM) AND METHOD FOR DETERMINING EDGE PROFILE OF LENS

A machine for processing an edge profile of an ophthalmic lens. The machine is defined by mutually perpendicular X, Y and Z axes. The machine comprises a machine frame, a lens holder unit for selectively holding the ophthalmic lens, a laser scanner unit for determining an edge profile of the ophthalmic lens mounted to the lens holder unit, and a main controller operatively connected to each of the lens holder unit and the laser scanner unit. The lens holder unit is configured to selectively rotate the ophthalmic lens around a C-axis of the lens holder unit, tilt the ophthalmic lens relative to the laser scanner unit and move rectilinearly relative to the machine frame in the directions of the Y axis. The laser scanner unit is selectively moveable rectilinearly relative to the machine frame in the directions of the X and Z axes.

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.

HIGH PRECISION NANOSCALE THIN FILM FABRICATION PROCESSES
20230185000 · 2023-06-15 ·

A method for fabricating one or more elements in a multi-lens column. Drops of ultraviolet (UV)-curable liquid are dispensed by an inkjet on a substrate, which may be supported by a chuck. A non-uniform liquid film is then formed, such as by spreading and merging of the inkjetted drops. The film is then locally heated, such as by using a digital micromirror device array. The film is then cured by exposing it to UV light, where the cured film together with the substrate form an element of the multi-lens column. The substrate is then brought to a metrology station where optical metrology is performed on the cured film and the substrate for quality control.

OPTICAL LENS
20230176400 · 2023-06-08 ·

Disclosed is a method implemented by a computer for determining surfacing data to obtain a surface of a lens element, the surface of the lens element including: a refraction area having a first curvature; and multiple optical elements placed on at least part of the finished optical surface, each optical element having at least a second curvature.

METHOD FOR MANUFACTURING A SPECTACLE LENS ACCORDING TO AT LEAST ONE DATA SET OF EDGING DATA
20220308360 · 2022-09-29 ·

A method for manufacturing a spectacle lens according to at least one data set of edging data and a computer program product with instructions for performing the method are disclosed. A spectacle lens blank, semifinished spectacle lens product, or a finished spectacle lens product is inspected for defects and compared to a data set to determine if it can be manufactured into an edged finished spectacle lens that fits into a specific spectacle frame such that the defect is not present in the edged finished spectacle lens.

Method and system for identification of a given geometrical feature of an optical component

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.

SURFACE PROCESSING EQUIPMENT AND SURFACE PROCESSING METHOD

A surface processing equipment using energy beam including a multi-axis platform, a surface profile measuring device, an energy beam generator and a computing device is provided. The multi-axis platform is configured to carry a workpiece and move the workpiece to the first position or the second position. The surface profile measuring device has a working area, and the first position is located on the working area. The surface profile measuring device is configured to measure the workpiece to obtain surface profile. The energy beam generator is configured to provide an energy beam to the workpiece for processing, and the second position is located on a transmission path of the energy beam. The computing device is connected to the surface profile measuring device and the energy beam generator. The computing device adjusts the energy beam generator according to the error profile.

SYSTEM AND METHOD FOR LOW-STRESS OPTICAL LENS USING A 3D-PRINT CORRECTION TECHNIQUE

A corrected optical lens includes an inner layer that includes a low stress optical lens and an outer layer that includes one or more corrective layers. The outer layer may be formed on at least a portion of an outer surface of the inner layer by scanning the outer surface of the inner layer, generating a surface characterization file based on the outer surface scan, and 3D printing the one or more corrective layers on the outer surface of the inner layer based on the surface characterization file as input to a 3D printer. The surface characterization file may be corrected based on a particular predetermined contour of the inner layer prior to being input to the 3D printer. The correction may include, for example, reduction of root mean square (RMS) values of deviations of detected peaks and valleys on the surface of the inner layer.

TESTING DEVICE AND METHOD FOR MEASURING THE HOMOGENEITY OF AN OPTICAL ELEMENT
20220170867 · 2022-06-02 · ·

A testing device for measuring the homogeneity of an optical element in a beam path of the testing device and related method. The testing device includes an interferometer, which comprises a monochromatic light source, an adjustable objective, a reference surface associated with a surface of the optical element to be tested or an interferometry surface, and an analysis unit for the interference of the wave fronts of the light reflected by the reference surface and the associated surface of the optical element to be tested or of the interferometry surface. The testing device and method facilitate highly precise measurement of the homogeneity of an entire optical element—not merely individual surfaces. The method is suitable for the highly precise measurement of plastic lenses or other injection molded components for refractive laser eye surgery for example.

Method for evaluating cosmetic defects of an optical device
11169049 · 2021-11-09 · ·

Disclosed is a method for evaluating cosmetic defects of an optical device, including: a first step of acquiring a first set of cosmetic defects of the optical device; a second acquiring step during which a second set of cosmetic defects of the optical device is acquired, the second set of cosmetic defects being different from the first set of cosmetics defects and including at least one cosmetic defect corresponding to a cosmetic defect of the first set of cosmetic defects; a determining step, during which a subset of the first set of cosmetic defects of the optical device is determined based on the comparison of the cosmetic defects of the second set of cosmetic defects and the cosmetic defects of the first set of cosmetic defects; and a determining step, during which a quality factor of the optical device is determined based on the subset of cosmetic defects.