Transparent optical component having cells filled with optical material
AssigneeEssilor International (Compagnie Generale d'Optique)
InventorsSamuel Archambeau, Christian Bovet, Jean-Paul Cano, Sylvie Vinsonneau
Life of this patent
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Abstract
A transparent optical component having cells (1) filled with an optical material is proposed, which has a high transparency. The cells of the component are filled to levels (h1, . . . , h5) 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 (R1, . . . , R5) which pass through the cells have a root mean square deviation of less than one quarter of the wavelength (1). Such a component may in particular be an ophthalmic lens.
Claims19
Method for the production of a transparent optical component having cells filled with optical material, said method comprising the following steps:
- /1/ obtaining a base optical component comprising a set of separate cells juxtaposed parallel to a surface of said component, each cell being open with an opening section parallel to the surface of the component;
- and
- /2/ introducing an optical material into the inside of each cell up to an average fill level (h1, . . . , h5) determined for this cell, and measured along a direction perpendicular to the surface of the component,
- wherein random or pseudo-random variations of the average fill levels of the cells (h1 . . . , h5) are introduced voluntarily between at least some of the cells of the component,
- the variations of the fill levels (h1 . . . , h5) between the different cells of the component are determined so that phase shifts respectively for rays of a visible light (R1 . . . , R5) passing through the cells along said direction perpendicular to the surface of the component have a root mean square deviation of less than one quarter of a wavelength (λ) of said light, and
- said fill levels of the cells are selected so as to exhibit a discontinuity between at least two of the cells.
Transparent optical component comprising a set of separate cells juxtaposed parallel to a surface of said component, each cell being filled with an optical material up to an average fill level (h1 . . . , h5) measured for said cell along a direction perpendicular to the surface of the component,
- wherein the average fill levels of the cells (h1 . . . , h5) have random or pseudo-random variations between at least some of the cells of the component,
- the variations in the fill levels (h1 . . . , h5) between different cells are adapted so that the phase shifts respectively for rays of a visible light (R1 . . . , R5) passing through the cells along said direction perpendicular to the surface of the component have a root mean square deviation of less than one quarter of a wavelength (λ) of said light, and
- said fill levels of the cells are selected so as to exhibit a discontinuity between at least two of the cells.
Dependencies are inferred from the claim text.