Essilor International (compagnie Generale D' optique) Patent applications |
Patent application number | Title | Published |
20160054583 | NOSE SUPPORT ASSEMBLY AND CORRESPONDING SPECTACLE FRAME - A nose support assembly for a spectacle frame, includes two nose support elements ( | 02-25-2016 |
20140240663 | METHOD FOR OBTAINING AN OPHTHALMIC LENS - A method for obtaining an ophthalmic lens, includes: —the step of selecting a material that displays a threshold of pinhole formation during a machining step of a finished surface ( | 08-28-2014 |
20140071541 | Optical Device with Adjustable Optical Surface - An adjustable optical device comprising at least a deformable optical surface activated by linear fluidic actuators comprising: a material layer comprising an upper surface on which the optical surface is provided and a bottom surface; an actuator layer comprising a plurality of linear fluidic actuators separated by at least one cavity, where at least one linear fluidic actuator is a pillar extending in the actuation direction (L) which is non parallel to the bottom surface of the material layer, said pillar comprising a wall delimiting an internal cavity and where an upper surface of said pillar is continuously linked to a zone of the bottom surface of the material layer; fluidic inlets suitable for introducing a fluid in at least one internal cavity of a pillar linear fluidic actuator. | 03-13-2014 |
20130278892 | METHOD OF MAKING OPHTHALMIC LENSES WITH A STRUCTURED SURFACE - A method for fabricating a Fresnel lens or other lens having a structured surface such as refractive and/or diffractive bi-focal or other multi-focal lenses includes press-coating the structured surface with a low or very low refractive index coating material. The coating is sufficient thick to adequately cover the structured surface so that a smooth coating surface with good optical properties is obtained, for example in the case of a Fresnel structure a thickness greater than 1.5 times and less than 5 times the Fresnel structure height, and is cured in situ. A film, e.g., of PET, PC or PU or a film stack, e.g. a TAC/PVA/TAC film stack is prepared and a heat melting adhesive is applied to the side of the film or film stack to be contacted with the coated structured surface of the lens blank. The film or film stack is then laminated to the cured coating. | 10-24-2013 |
20130022739 | METHOD OF DIP-COATING A LENS - A method of dip-coating a lens includes the steps of: immersing the lens ( | 01-24-2013 |
20130011665 | HEAT CURABLE COMPOSITIONS FOR TINTABLE ABRASION RESISTANT TRANSPARENT HARD-COATINGS - The present invention is relative to a heat-curable coating composition forming transparent tintable abrasion-resistant coatings, said compositions comprising, in an aqueous or hydro-organic solvent:
| 01-10-2013 |
20110166834 | Method for Optimizing the Settings of an Ophthalmic System - A method implemented by computer means, for optimizing the settings of an ophthalmic system comprising an ophthalmic lens arranged to be fitted in a spectacle frame according to a given wearer, the method comprising the steps of: providing to the computer means wearer, frame and lens data comprising a 3D representation of the, respectively wearer's face, frame and lens, generating positioning data based on the wearer, frame and lens data, said positioning data comprising the respective position of the wearer face with respect to the spectacle frame associated with the ophthalmic lens, and upon a modification request, modifying the settings of the ophthalmic lens to be manufactured and fitted in the spectacle frame, so as to modify the positioning data. | 07-07-2011 |
20100283963 | PROGRESSIVE LENS FOR OPHTHALMIC SPECTACLES, HAVING AN ADDITIONAL ZONE FOR INTERMEDIATE VISION - A progressive lens for ophthalmic spectacles has an additional zone for intermediate vision. This additional zone is located beneath a near-vision zone. It enables objects located at a distance of between 1.0 and 1.5 meters, in a direction inclined at about 35 degrees to a line of sight passing through a cross mark (CM) on the lens, to be seen clearly. To achieve this, the optical power progression between a far-vision point (FV) and a near-vision point (NV) of said lens has a power-increase threshold which is located approximately at the cross mark. | 11-11-2010 |
20100202033 | 3H-NAPHTH0 [2,1-B] PYRANS AS PHOTOCHROMIC DICHROIC DYES AND OPTICAL ARTICLE CONTAINING THEM - A naphthopyran compound represented by the formula (I): | 08-12-2010 |
20090022554 | Tool and Machine for Machining Operations Posing an Inverse Operation Risk - The invention relates to a tool ( | 01-22-2009 |
20080265452 | Inflatable Membrane Pressing Apparatus for a Film or Coating Application or Lamination Process - An inflatable membrane pressing apparatus ( | 10-30-2008 |
20080246914 | Ophthalmic Lens - The invention concerns an ophthalmic lens having a complex surface, with a substantially umbilic meridian and an average sphere progression ranging between 0.50 diopter and 0.75 diopter. The lens is prescribed for esophoric and non-presbyopic users. The lens is prescribed as a standard unifocal lens. Through the presence of the average sphere progression, the user is less adapted to near vision, thus compensating for his/her esophoria. | 10-09-2008 |