Patent ID: 7878649
Filing Date: 2011-02-01
Classification: G02B,G02C,G02F

Abstract:
1. Optical element comprising: a base component having a set of cells placed side by side parallel to a face of the component, the cells being open at said face and being separated by walls; a film for sealing the cells arranged on the face of the base component provided with the cells; and a layer of an adhesive material carried by a face of the sealing film which faces the cells, wherein the ends of the walls separating the cells penetrate into the layer of adhesive material to bring about the sealing of the cells, and wherein the adhesive material comprises a mixture of a base adhesive material and of an additional substance, the refractive index value of the adhesive material being intermediate between the respective refractive index values of said base adhesive material and of said additional substance, and an amount of the additional substance in the mixture being adapted so that a material of said ends of the walls and the adhesive material have values for an optical refractive index which are substantially equal.