Essilor International

Essilor International (compagnie Generale D'optique)

Marc Reignault

Mathieu Meynen

Ludovic Jouard

Benoit Callier

Loic Quere

Sira Uhalte Nogues

Eric Gacoin

Claudine Biver

Marius Peloux

Loïc Quere

Denis Cohen Tannoudji

Guillaume Martin

Loïc Baillon

Dominick Hubacz

Sunil Madhukar Bhangale

Laurent Berthelot

Pascal Le Bouillonnec

Alexis Raposo

Hasana Sadiki

The present disclosure includes an optical article for use with an eyewear apparatus. In some implementations, the optical article includes a single optical member having opposing first and second lens surfaces and a magnet coupled to the optical member and configured to be coupled to a frame of an eyewear apparatus. The optical article may also include a mounting bracket coupled to the optical member and configured to be coupled to the frame of the eyewear apparatus.

Rx add-on for glasses

A spectacle frame including a first part, at least a second part, a joining part joining the second part to the first part allowing to fold and unfold the second part relative to the first part so that the second part be movable between respective closed position and open position, at least an electrical wiring arranged through the joining part to allow an electrical connectivity between the first part and the second part, wherein the joining part is elastically deformable with curvature radius values higher than a predefined minimum curvature radius value.

Spectacle frame comprising electrical conductors and having a controlled foldability, method of manufacturing

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.

Method for manufacturing an optical article

The present invention relates to an optical device usable in a head-mounted display which comprises a light conducting element and at least one wafer, and to a head-mounted device which is configured to provide an informative display of augmented reality for a wearer of the head-mounted device and which comprises such an optical device. This optical device () comprises: a light conducting element () which has two first and second opposite main faces (and) and which inputs and conducts by total internal reflections a light () received from the light source () and partially outputs it out of said element, at least one wafer () which comprises an internal surface () facing a said first main face of said light conducting element, and interposition means in contact with said first main face and said internal surface and defining a gap () optically isolating said element. According to the invention, said interposition means comprise a peripheral sealing arrangement () which extends along its peripheral length between and in sealing contact with a peripheral area () of said internal surface and a facing zone () of said first main face, at least one portion of said sealing arrangement exhibiting a locally reduced optical coupling with said first main face to preserve said internal reflections at said at least one portion toward the inside of said element.

Optical device for a head-mounted display, and head-mounted device incorporating it for augmented reality

Method for providing a head mounted optical system, the method comprising: an optical system providing step (S), during which an optical system with an active function is provided and, an encapsulating step (S), during which the optical system is at least partly encapsulated in a transparent capsule by stacking in close contact the optical system with at least one substrate of the transparent capsule and made integral with an adhesive.

Method for providing a head mounted optical system

An optical device for a wearer including an optical system with an active function configured to be mounted into a frame, a wafer comprising an internal face facing the optical system, the wafer being configured to be mounted into the frame, and holding means configured to maintain the optical system and the wafer in the frame without contact at least between a part of the optical system and the internal face of the wafer.

Optical device adapted for a wearer

Method for encapsulating at least partly a light-guide optical element in a transparent capsule, the method comprising at least: &#x2014;a transparent capsule providing step during which a transparent capsule is provided, &#x2014;a light-guide optical element providing step during which a light-guide optical element is provided, &#x2014;an adhesive deposing step during which an adhesive is deposited on at least part of a face of the transparent capsule and/or of a face of the light-guide optical element, &#x2014;a positioning step during which the transparent capsule and the light-guide optical element are positioned one relative to the other so as to form an optical system, &#x2014;a bonding step during which the light-guide optical element and the transparent capsule are made integral with the adhesive, wherein the method further comprises prior to the bonding step a control step during which at least one parameter of the optical system is controlled.

Method for encapsulating a light-guide optical element in a transparent capsule

The invention relates to a process for manufacturing an ophthalmic lens element equipped with an insert (), this ophthalmic lens element comprising a front face and a back face, comprising steps consisting in: providing a first portion or intermediate product (&#x2033;) made of a first material comprising a first and second frontal face (A,B,A&#x2033;,B&#x2033;), said second face forming the back or front face of said ophthalmic lens element; placing the insert () on said first face of said intermediate product; depositing a second material in liquid form on said first face of the intermediate product (&#x2033;) so as to cover at least partially said insert with said second material; and solidifying said second material in order to form an integral second portion () of said intermediate product. According to the invention, said first material is organic.

Process for manufacturing an ophthalmic lens equipped with an insert

An optical device adapted for a wearer includes an emitting system, a first wafer and a gap. The emitting system includes a halt conducting element configured to output a light through an exit face of the light conducting element towards an eye of the wearer. The first wafer includes an internal face facing the light conducting element. The gap is arranged between at least the exit face of the light conducting element and the wafer. The internal face of the wafer includes at least a curved surface facing the exit face and has a curvature greater than 0 D.

A method of blocking a lens member having a surface to be manufactured on a lens holding unit, the method comprising: a lens member providing step during which a lens member comprising engraved markings is provided, a contrast providing step during which contrast elements are placed on the engraved markings, a taping step during which the marked surface of the lens member is taped with an adhesive tape over the contrast elements, and a blocking step during which the lens member is blocked on a lens holding unit via the taped surface.

Method of blocking an optical lens

A machining method for machining a surface of a spectacle lens at a fixed rotation speed, includes a step of determining the rotation speed from geometric characteristics of the surface, characterized in that the step of determining the rotation speed includes the following steps: a value (Maxdiff) representative of the largest difference in geometric value of the mean sphere on the surface is determined; and the rotation speed is deduced from the value (Maxdiff) of the largest difference in geometric values of the mean sphere on the surface and from a geometric value of the cylinder (FV torus) at a predetermined far-vision control point.

Growing community of inventors

Charenton-le-Pont, France

Marc Reignault