Essilor International (compagnie Generale D'optique)

Essilor International

Centre National De La Recherche Scientifique

Sylvie Vinsonneau

Jean-Paul Cano

Samuel Archambeau

Claudine Biver

Jerome Ballet

David Escaich

Stephane Perrot

Christian Bovet

Francis Maury

Jérôme Ballet

Fabien Berit Debat

Stéphane Perrot

Jean-Jacques Lussagnet

Julien Duchene

Virginie Santucci

François Senocq

The invention relates to an ophthalmic device including an electrically controllable amplitude variation cell, in particular an electrochromic transmission variation cell. More particularly, the cell () comprises a main convex surface on the front. This arrangement makes it possible for the cell to process a lateral luminous flux (RP), unlike cells in the prior art (AA).

Ophthalmic device with improved amplitude variation cell

The invention relates to an ophthalmic device () which includes an electrochromic cell () comprising at least two transparent layers () having curved inner surfaces () and defining therebetween a closed recess () filled with an electrochromic composition (), the recess () being defined peripherally by a sealing gasket () made from an adhesive material (), the sealing gasket () being suitable for keeping the two transparent layers () assembled together.

Ophthalmic device comprising an electrochromic cell

The invention relates to an ink-jet printing deposition method including a compensation of deviations (&#x3b4;l, &#x3b4;l, &#x3b4;l, . . . ) of ejection nozzles (. . . ) carried by a printing head (). To this end, the deviations are measured first at the moment of the deposition, and then, during the deposition, each nozzle is activated when it shows a shift in relation to the point on a support where the substance is to be deposited, substantially opposite the deviation of said nozzle. Said depositions carried out in this way do not comprise accidental Moir&#xe9; patterns.

Ink-jet printing deposition method

A transparent optical component having cells () filled with an optical material is proposed, which has a high transparency. The cells of the component are filled to levels (h, . . . , h) which vary randomly, and the variations of which are adapted so as not to cause a perceptible optical defect. To do this, the fill levels of the cells are adapted so that the phase shifts experienced by the light rays (R, . . . , R) which pass through the cells have a root mean square deviation of less than one quarter of the wavelength (). Such a component may in particular be an ophthalmic lens.

Transparent optical component having cells filled with optical material

Growing community of inventors

Charenton le Pont, France

Sylvie Vinsonneau