737 patents
Page 4 of 37
Utility
Optical Deficiency Monitoring Equipment Comprising a Pair of Eyeglasses
17 Aug 23
A monitoring equipment including an eyewear that includes a frame, at least one lens that is fixed to the frame and that is able to change the natural evolution of an optical deficiency, a wearing sensor able to determine if the eyewear is being worn by a wearer, and a processing unit that is programmed to acquire the data determined by the wearing sensor, deduce therefrom a parameter relative to the length of time the wearer has worn the eyewear during a predetermined period, and compare said parameter with at least a predetermined datum to determine a level of efficiency of the optical deficiency treatment.
Bjorn DROBE, Adeline YANG
Filed: 20 Jul 21
Utility
Process for manufacturing light absorbing polymer matrix
15 Aug 23
An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix, wherein the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound, and the shell of core shell nanoparticles comprises a mineral compound.
John Biteau, Ronald Berzon, Pierre Fromentin
Filed: 19 Dec 18
Utility
Centering Apparatus and Process
10 Aug 23
Disclosed is a centering apparatus including: a chassis; a holder mounted on the chassis, which is suitable for receiving an ophthalmic lens; and a centering unit mounted on the chassis, which includes: a camera for acquiring images of the ophthalmic lens when received on the holder, and a screen for displaying the images acquired by the camera and a centering target superimposed onto the images, the centering target including two coaxial and parallel outlines.
Laurent ROUSSEL, Hugues AMEURLAIN
Filed: 5 May 21
Utility
Molds having cooling behind insert technology and related methods
8 Aug 23
This disclosure includes injection molds for reducing cycle times and related methods.
Tareq Haque, Gary Clark, David Rys
Filed: 1 Mar 19
Utility
Polymerizable and Polymer Compositions for an Optical Material Having a Refractive Index of 1.54-1.58, Ophthalmic Lens and Manufacturing Method
3 Aug 23
The invention relates to a polymerizable composition intended to form a polymer composition for an optical material, such as a substrate of an ophthalmic lens, to this polymer composition obtained by polymerizing the polymerizable composition and having a refractive index of from 1.54 to 1.58, to an ophthalmic lens comprising this polymer composition and to a method for manufacturing this optical material.
Laurie MARION, Pierre FROMENTIN
Filed: 2 Jun 21
Utility
Pair of Optical Element for Augmented Reality Equipment
27 Jul 23
A pair of ophthalmic lenses adapted for a wearer whose prescriptions for the left and right eye are different by at least 0.25D in cylinder, the rear surfaces of both ophthalmic lenses having a substantially identical shape.
Alain GOULET, Samy HAMLAOUI, Olivier ROUSSEL
Filed: 4 Jun 21
Utility
Item having improved thermomechanical properties, comprising an organic-inorganic layer
25 Jul 23
The invention relates to an item comprising a substrate having at least one main surface coated with a multilayer interferential coating comprising at least one layer with a refractive index higher than 1.65 and at least one layer with a refractive index lower than, or equal to, 1.65, at least one of the layers of the interferential coating being an organic-inorganic layer that has been deposited in a vacuum environment and has a thickness of at least 30 nm, said interferential coating having a thickness of at least 450 nm and/or at least 8 layers.
Sébastien Chiarotto, Karin Scherer
Filed: 8 Jul 20
Utility
Method for detecting a defect in a zone of interest of an optical lens
25 Jul 23
Method for detecting a defect in a zone of interest of an optical lens, the method including: an image reception step, during which a plurality of images is received, each image includes a view of the zone of interest in front of a plurality of specific patterns, each specific pattern including a bright area and a dark area, and at least one image received is saturated in light intensity; a sampling step, during which each image of the plurality of images are sampled based on a common sampling pattern; a recombination step, during which a recombined image of the zone of interest is determined based on the common sampling pattern; and a defect detection step, during which a defect is detected in the zone of interest of the optical lens based on an analysis of the recombined image.
Cédric Lemaire
Filed: 21 Jun 19
Utility
Heat curable epoxy compositions and transparent heat-cured coatings with durable adhesion prepared therefrom
25 Jul 23
The present disclosure provides heat-curable coating compositions for optical articles.
Haipeng Zheng, Christopher Thai
Filed: 3 Oct 19
Utility
Methods for Preparing Functional Optical Films
20 Jul 23
The disclosure provides post-production methods for functionalization of optical quality films produced by top tier manufactures.
Zbigniew TOKARSKI
Filed: 22 Mar 23
Utility
an Eyewear Frame
13 Jul 23
An eyewear frame (10) comprising: - a central portion (12) configured to receive at least one optical lens (14a, 14b), - a first temple (16a) having a first embedded electronic device (18a) and a first battery (20a), - a second temple (16b) having a second embedded electronic device (18b) and a second battery (20b), the first temple (16a) is pivotably fixed to a first end (22a) of the central portion (12) and second temple (16b) is pivotably fixed to a second end (22b) of the central portion (12), wherein the first electronic and the second electronic devices (18a, 18b) are configured to communicate in a wireless manner, and the first and second electronic devices (18a, 18b) comprise each a close-range communication system (24a, 24b) configured to synchronize the first and the second electronic devices (18a, 18b).
Cedric GILBERT
Filed: 18 May 21
Utility
Curable Coating Composition
13 Jul 23
The present invention relates to a curable coating composition, especially a radiation curable coating composition comprising at least one poly(meth)acrylate compound comprising at least 6 (meth)acrylate groups, at least one unsaturated silane compound, and at least one photoinitiator.
Robert VALERI
Filed: 3 Jun 21
Utility
Electrochromic Solution
13 Jul 23
The present invention relates to an electrochromic solution and a use thereof, wherein the said solution comprises: a solvent; a thickening polymer agent having a molecular weight of at least 50,000 g/mol, preferably 200,000 g/mol, more preferably of at least 250,000 g/mol; at least an additive having a molecular weight between 300 and 50,000 g/mol, preferably between 320 and 20,000 g/mol; a redox chemical mixture in solution in said solvent said mixture being constituted of at least one electrochromic reducing compound and at least one electrochromic oxidizing compound, and which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage.
Samuel ARCHAMBEAU, Claudine BIVER, Fabien BERIT DEBAT, Jerôme BALLET, Jean-Paul CANO
Filed: 9 Jun 21
Utility
Method for injection molding weld line free minus power lens elements
11 Jul 23
A method for injection molding of a weld line free minus power lens element comprises injecting a melt of thermoplastic material 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, wherein the melt of thermoplastic material comprises at least one UV absorber.
Hao-Wen Chiu, Shannon Loiselle, Shawn Mcdermott
Filed: 26 Jan 18
Utility
Optical Lens
6 Jul 23
An optical lens to be worn in front of an eye of a wearer having at least one prescribed refractive power Px, the optical lens including two opposite optical faces and a plurality of contiguous optical elements at least part of the optical elements having an optical function of not focusing an image on the retina of the eye of the wearer so as to slow down the progression of the abnormal refraction of the eye.
Eric GACOIN, Matthieu GUILLOT, Bruno FERMIGIER, Gilles LE SAUX
Filed: 28 May 21
Utility
Lens Element
6 Jul 23
An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px, the optical lens comprising two opposite optical faces and a plurality of contiguous optical elements at least part of the optical elements having an optical function of not focusing an image on the retina of the eye of the wearer so as to slow down the progression of the abnormal refraction of the eye, wherein: —over a pupil having at least a 4 mm diameter, one can measure in a plane corresponding to the at least one prescribed refractive power along at least one direction, a Modulation Transfer Function through the optical lens greater than 0.1 between 0 and 20 cyc/deg; —a majority of the light rays passing through the optical lens over said pupil pass through at least one of the plurality of optical elements, and —each of the contiguous optical element verifies that Formula (I) with d a characteristic dimension of the contour of said optical element in mm, |P| the absolute value of a characteristic optical power of said optical element expressed in diopter, and K a number greater or equal to 0.9 and smaller than or equal to 1.7.
Eric GACOIN, Matthieu GUILLOT, Bruno FERMIGIER, Gilles LE SAUX
Filed: 2 Jun 21
Utility
Fluidic Optical Article with a Mobile Element and Method for Controlling Same
6 Jul 23
The disclosure relates to an optical article comprising an optical lens shell having an internal surface, a support element mounting said shell, disposed in a fixed position, and movably mounting a moveable element between a first position and a second position.
Sylvain CHENE
Filed: 5 May 21
Utility
Eyeglass Device and Method for Driving a Variable Transmission Ophthalmic Lens
6 Jul 23
An eyeglass device including a variable transmission ophthalmic lens, a method for driving the transmission of such lens, and a non-transitory computer-readable storage medium for implementing such method.
Bruno FERMIGIER, Cédric GILBERT, Alexandre GOURRAUD, Marius PELOUX, Vincent ROPTIN
Filed: 23 Jun 21
Utility
a Filter and a Method for Determining a Filter Taking into Account the Spectral Transmittance of an Ocular Media of an Eye of a Wearer
6 Jul 23
Disclosed is a method for determining a filter for a visual equipment to be placed in front of the eye of a user to improve visual comfort and/or visual performance of the user, the method including: determining the spectral transmittance of an ocular media of an eye; and determining a filter based on the determined spectral transmittance of the ocular media so the filter has a spectral transmittance profile including: a first portion having a maximum transmittance value between 380 nm and a predetermined threshold, and a second portion with a decreasing transmittance value between the threshold and 670 nm.
Marie DUBAIL, Prakhar KASTURE, Anne-Catherine SCHERLEN
Filed: 27 May 21
Utility
Apparatus and method for measuring subjective ocular refraction with high-resolution spherical and/or cylindrical optical power
30 May 23
Disclosed is an apparatus for measuring subjective ocular refraction including a display device configured to display a least one optotype and a refractive optical system arranged between an eye of a viewer and the display device, the refractive optical system having an optical power that can be varied according to a determined minimum step.
Gildas Marin, Philippe Pinault
Filed: 23 Oct 17