737 patents
Page 5 of 37
Utility
Lens holding block and method for blocking, unblocking an optical lens component
30 May 23
Disclosed is a lens holding block for positioning and retaining a lens substrate in a processing machine, including a bottom part that is able to immobilize the lens holding block in the processing machine and an upper part.
Michael Mauderer, Holger Schaefer, Herger Alt
Filed: 22 Mar 19
Utility
Method of Preparing Wafers with Stretched Polymers for Wafer Thermoforming and Injection Molding Ophthalmic Lenses Comprising Said Wafer
25 May 23
A method of forming an ophthalmic laminate lens, includes: forming a planar laminate (100) by adhering a first stretched polymer layer (115) to a first side of a thermoplastic elastomer layer (120), and adhering a second polymer layer (125) to a second side of the thermoplastic elastomer layer (120), the first stretched polymer layer (115) having a thickness greater than 250 μm, the second polymer layer (125) having a thickness greater than 250 μm, and the thermoplastic elastomer layer (120) having a thickness in a range of 15 μm to 150 μm; thermoforming the planar laminate (100) into a curved laminate (105), the curve laminate (105) having a pre-molding curvature; arranging the curved laminate(105) in a mold (145a); and molding, via the mold set (145a, 145b) at a predetermined temperature and a predetermined pressure, the curved laminate (105) with a polymer melt (140) into a curved lens, wherein a temperature of the polymer melt (140) is above a stretch temperature of the first stretched polymer layer (115).
Zbigniew TOKARSKI, Ahmed DRAMMEH, Eric BEGG, Mauricio AMAYA GUTIERREZ
Filed: 25 Feb 21
Utility
Lens with Surface Microstructures Encapsulated by a Thick Low Refractive Index Hard Coat
25 May 23
The invention relates to an optical article comprising a base lens substrate having a at least one or a plurality of optical elements such as microlenses, a Fresnel structures, etc protruding from a surface thereof, and a hard coat covering encapsulating each optical elements.
John BITEAU, Peiqi JIANG
Filed: 15 Apr 21
Utility
Method of Manufacturing an Ophthalmic Lens
25 May 23
Disclosed is a method of manufacturing an ophthalmic lens to be mounted into a frame, including: a step of acquiring an optical prescription for the future wearer of the ophthalmic lens and an information relative to the ophthalmic lens and/or to the future wearer and/or to the frame; a step of calculating a surfacing instruction of the ophthalmic lens, the surfacing instruction being determined so that the ophthalmic lens once surfaced satisfies the optical prescription; and a step of surfacing during which the at least one optical face of the ophthalmic lens is surfaced according to the surfacing instruction.
Yu LIU, Jinhhao NG, Yassine FAKHREDDINE, Muhammad LEMAN, Eric GACOIN
Filed: 20 Apr 21
Utility
Method for manufacturing an optical article
23 May 23
A method for manufacturing an optical article including the following steps: a. providing a first substrate with a main surface, b. depositing a second substrate on the main surface with an adhesive layer so that the space between the first substrate and second substrate is filled by the adhesive layer, c. curing the adhesive layer to induce a polymerization of the adhesive layer, wherein a tension step takes place after steps a. and b., and before step c., the tension step including applying symmetrically a tension, preferentially with a central symmetry, preferentially a radial isotropic tension or an ortho-distributed symmetrical tension, on the edges of the second substrate sensibly in a tension plan parallel to a plan representative of the main surface.
Mathieu Meynen, Ludovic Jouard, Marc Reignault, Sira Uhalte Nogues
Filed: 26 Apr 18
Utility
Method for injection molding plus power lens elements
23 May 23
A method for injection molding of a plus power lens element comprises injecting a melt of thermoplastic material comprising at least one UV absorber at a temperature higher than a glass transition temperature (Tg) of the thermoplastic material in an initial molding cavity delimited by two facing mold inserts.
Hao-Wen Chiu, David Bracero, Shawn McDermott
Filed: 26 Jan 18
Utility
Eyewear frame, an eyewear, and a method of adjusting an eyewear frame
23 May 23
An eyewear frame having at least one frame component including a stimuli-responsive polymer is provided.
Muriel Godeau, Mathieu Feuillade, Pauline Colas, Anna Yeo, Yee Ling Wong
Filed: 19 Feb 19
Utility
Lens with Surface Microstructures Encapsulated by a Self-stratified Hard Coat
18 May 23
The invention relates to an optical article comprising a base lens substrate having at least one optical element or a plurality of optical elements such as microlenses, said article exhibiting good optical properties and good mechanical properties.
John BITEAU
Filed: 22 Apr 21
Utility
Methods for preparing functional optical films
16 May 23
The disclosure provides post-production methods for functionalization of optical quality films produced by top tier manufactures.
Zbigniew Tokarski
Filed: 25 Jun 18
Utility
Optical systems, spectacle lens and eyewear including the same
16 May 23
An illumination system adapted for an eyewear that includes a light source configured to emit a first light including a power spectrum having full width at half maximum of less than 100 nm in a first range of wavelengths and a second light including a power spectrum having full width at half maximum of less than 100 nm in a second range of wavelengths, the power spectrum of the first light and the power spectrum of the second light differ from each other, and the light source is further configured to emit pulses of light with a pre-determined time function.
Daniel Spiegel
Filed: 19 Jul 19
Utility
Method of Determining an Attitude of an Eyewear
11 May 23
An aspect of the disclosure relates to a method of determining an attitude of an eyewear.
Damien PAILLE, Daniel SPIEGEL, Yu Richard LIU, Gilles GARCIN, Denis ROUSSEAU
Filed: 22 Apr 21
Utility
Optical Microstructure-containing Laminate for Ophthalmic Lens Incorporation
11 May 23
The present disclosure relates to a laminate, comprising a first film including a pattern of microstructures embossed on a first surface of thereof, each microstructure being arranged at a predetermined distance between adjacent microstructures, and a second film including structures arranged on a first surface thereof at positions corresponding to areas of the first surface of the first film defined by the predetermined distance, wherein when the second film is laminated to the first film, the structures arranged on the first surface of the second film are in contact with the areas of the first surface of the first film defined by the predetermined distance, a height of the structures is greater than a height of each microstructure, and a delta defined therebetween encapsulates a void fill material in at least a portion of at least one void defined by the delta.
Aref JALLOULI, Zbigniew TOKARSKI, Hao-Wen CHIU
Filed: 13 Apr 21
Utility
Water Based Anti-abrasion Coating
11 May 23
The invention relates to a water based composition to be used for the preparation of anti-abrasion coatings on ophthalmic lenses.
Anaelle MORTREUX, Chefik HABASSI, Philippe VANEECKHOUTTE
Filed: 22 Apr 21
Utility
a Thermoforming Machine and Method
11 May 23
This thermoforming machine includes a thermoforming chamber having at least one heated air inlet through which heated air flows into the thermoforming chamber at a controlled pressure.
Youval KATZMAN
Filed: 25 Feb 21
Utility
Primer Coating Composition for Polarizing Ophthalmic Lens
11 May 23
A primer coating composition for bonding a functional laminate to a lens during cast-polymerization, including an acrylic polymer; a urethane acrylate oligomer; a reactive component capable of reacting with a lens-casting monomer for casting the cast-polymerized lens, a UV initiator or a thermal initiator, and a solvent.
Peiqi JIANG, Ronald BERZON
Filed: 25 Feb 21
Utility
Method of Preparing a Functional Laminate
11 May 23
The present disclosure relates to a method of preparing a laminate or a laminated lens, comprising obtaining a first plastic substrate having a front surface and a back surface, treating the front surface of the first plastic substrate or the back surface of the first plastic substrate, and laminating a second plastic substrate on the treated front surface of the first plastic substrate or the treated back surface of the first plastic substrate.
Peiqi JIANG
Filed: 25 Feb 21
Utility
Method and Apparatus for Microstructured Filters In Laminates for Light Attenuation
11 May 23
A laminate, includes: a first layer, a first material of the first layer having a first refractive index, the first layer including a first surface; a first microstructure layer including a first microstructure pattern formed on a first surface of the microstructure layer, a first microstructure material of the first microstructure layer having a first microstructure material refractive index, the first microstructure pattern having first repeating structures with a first predetermined periodicity, the microstructure layer being disposed on the first surface of the first layer; a second layer, a second material of the second layer having a second refractive index, the second layer being disposed adjacent to the first surface of the first microstructure layer; and a third layer, a third material of the third layer having a third refractive index, the third layer being disposed adjacent to the second layer on a side opposite the microstructure layer.
Ahmed DRAMMEH, Zbigniew TOKARSKI
Filed: 13 Apr 21
Utility
Method for Forming an Optical Article Comprising Microlenses
11 May 23
It is disclosed a method of forming an optical article comprising: providing a base lens substrate (10) having opposite first and second optical surfaces, and at least one microlens protruding from the second optical surface, placing the base lens substrate in a mold (90) comprising first (91) and second (92) mold portions such that the first optical surface is disposed on a molding surface of the first mold portion (91), and that a volume is defined between a molding surface of the second mold portion and the second optical surface, filling the volume with a moldable material suitable for forming abrasion resistant coating; and setting the moldable material to form an abrasion-resistant coating (20) over the base lens substrate (10), wherein the abrasion resistant coating encapsulates each microlens (30).
Peiqi JIANG, John BITEAU
Filed: 15 Apr 21
Utility
Method for Producing a Mold
11 May 23
Disclosed is a method for producing a mold obtained by providing a monolithic optical lens element having at least a finished optical surface, the monolithic optical lens element being made of an organic material.
Eric GACOIN, Michèle THOMAS, Sébastien HENRION
Filed: 7 Apr 21
Utility
Functional Wafers by 3D Printing
11 May 23
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).
Hao Wen CHIU, Aref JALLOULI, Haifeng SHAN
Filed: 31 Mar 21