摘要:
A laminated optical lens having an edging-optimized laminar configuration and method for manufacturing same. The laminated optical lens includes an optical base lens and a film layered structure including an external film furthest from said lens. An adhesive layered structure is placed between the film layered structure and the optical base lens so as to permanently retain the film layered structure on the surface of the optical base lens. The laminated lens is manufactured by laminating a film layered structure having an external film to an optical base element with an adhesive layered structure. The external film has a thickness of at least 100 μιπ, and preferably a thickness in the range of 150 microns to 300 microns inclusive. The adhesive layered structure has a thickness in the range of 5 microns to 100 microns inclusive, and preferably of 25 microns to 50 microns inclusive
摘要:
A method of deblocking a lens component (1) fixed on a thermoplastic block (2) of an ophthalmic lens block comprising the steps of: a) applying a pushing strain on the surface (14) of the lens component fixed on the thermoplastic block; b) providing a warm gas flow at the interface between the lens component (1) and the thermoplastic block; and maintaining the pushing strain during the step of providing the warm gas flow at the interface between the lens component and the thermoplastic block, wherein the stress applied to obtain the pushing strain of step a) is greater or equal to 0.1 MPa and/or less or equal to 1 Mpa, and wherein the temperature of the warm gas flow of step b) is greater or equal to 30° and/or less or equal to 70° C.
摘要:
Ophthalmic lens comprising: a primary zone on a first face; a secondary zone on the first face between said primary zone and the peripheral edge of the lens; first and second regions forming a partition of the secondary zone, which are contiguous and alternate with a pitch. A spectacle eyeglass obtained from said lens produces a first ophthalmic correction in the primary zone and in the first regions, and a second ophthalmic correction in the second regions different from said first ophthalmic correction. An active system of vision comprises an occultation device comprising: a selection device for selecting the wearer's viewing state; an optical occultation system to occult alternatively a first group and a second group according to the wearer's viewing state selected by the selection device, the first group comprising at least the primary zone and the first regions, and the second group comprising at least the second regions.
摘要:
A refractive Fresnel lens used for an optical system including an image plane, which includes a plurality of zone lens surfaces disposed concentrically and a plurality of side wall surfaces each formed between adjacent zone lens surfaces, is characterized in that the side wall surfaces are modulated so as to spatially spread in the image plane noise light due to reflection and/or refraction at the side wall surfaces.
摘要:
The invention relates to an antistatic coating composition comprising a hydrolyzate resulting from the at least partial hydrolysis of: a component A consisting of one or more compounds containing at least one polyalkylene oxide segment and at least one —Si(X)n hydrolyzable group, in which n is an integer ranging from 1 to 3 and the X groups are precursors of OH groups; at least one inorganic metal salt; and optionally, at least one component B, consisting of one or more compounds of formula Rn,Si(Z)4-n′ or formula R1n1Ym1Si(Z1)4-n1-m1, in which the R groups are monovalent alkyl groups, the Z and Z1 groups are hydrolyzable groups or hydrogen atoms, the R1 groups are monovalent organic groups linked to the silicon atom through a carbon atom, the Y groups are monovalent organic groups linked to the silicon atom and containing at least one epoxy function, n′ is an integer equal to O, 1 or 2, m1 and n1 are integers such that m1 is equal to 1 or 2 and n1+m1=1 or 2, component A and optional component B being chosen such that a cross-linked structure is generated upon polymerization of said composition, the dry extract of said composition containing less than 5% by weight of free polyalkylene oxide polymers.
摘要:
The present invention is drawn to a process of drilling organic glasses, comprising the steps of: (a) providing a substrate of organic glass, preferably of optical grade, (b) laminating onto at least one surface of said organic glass substrate via an adhesive layer selected from the group consisting of pressure sensitive adhesives and hot melt adhesives, a thermoplastic polymer film having a thickness of at least 40 μm and an elastic modulus of at least 3 GPa, the peel strength of the thermoplastic polymer on the organic glass substrate being higher than 1.3 N/25 mm, preferably of at least 1.5N/25 mm, (c) drilling a hole through the substrate and polymer film by means of a drill, and (d) optionally removing the thermoplastic polymer film and adhesive.
摘要:
The invention relates to a method for manufacturing an ophthalmic lens (40) having at least one optical function, which comprises the step of additively manufacturing (118) a complementary optical element (12) by depositing a plurality of predetermined volume elements (24) of a material having a predetermined refraction index on a predetermined manufacturing substrate (10), said complementary optical element (12) being configured such as to be assembled with an initial optical system (30), said manufacturing step comprising the step of determining a manufacturing setting (116) from properties relating to the deformation of said complementary optical element (12), which deformation is caused by transferring the latter onto said initial optical system (30), and said step of determining a setting comprising the step of determining said deformation properties (113) of said complementary optical element (12) from geometric properties of said manufacturing substrate (10) and said initial optical system (30) and from properties of said optical function to be provided to said ophthalmic lens (40).
摘要:
Systems and methods for processing jobs in a Laboratory Management System (LMS) are disclosed. In some embodiments, a method may include identifying, by a user operating an LMS interface provided via one or more computer systems, an electronic record related to one of a plurality of manufacturing orders, determining, by the user, that the identified manufacturing order is being temporarily suspended from production, and adding the electronic record to a hot jobs queue in the LMS interface.
摘要:
The invention relates to a display comprising an optical imager (5) for shaping light beams emitted by a light beam generator system (4), said beams being introduced into said imager via an inlet face, and for directing the beams towards the eye (O) of a wearer in order to enable an image (I) to be viewed, two hooks (10, 11) being in reference positions relative to the imager, and said light beam generator system including a connection arrangement for connection to said hooks (10, 11), the connection between said system and said hooks being releasable and said hooks (10, 11) being designed to be received in housings carried by the connection arrangement. According to the invention, said housings are arranged in such a manner that said connection arrangement is assembled on said hooks by applying thrust against one of said hooks (11), by turning about said hook, and by snap-fastening onto the other hook (10).
摘要:
A method for preparing an abrasion resistant optical article comprising: providing an optical article having at least one main face bearing an abrasion resistant coating; positioning said optical article in a vacuum deposition chamber; depositing a first inorganic layer comprising SiO2 onto and in direct contact with said abrasion resistant coating by vacuum evaporation of SiO2 and/or SiOx, with 1