摘要:
An electrically controllable optical component (10) comprises a transparent array of cells (3) and two transparent electrodes (5a, 5b) which are parallel and lying opposite each other on either side of the array of cells. Certain of the cells located between the two electrodes contain different electroactive materials, so that said cells exhibit different respective variations in at least one optical quantity in response to an electrical signal applied to the electrodes. An optical function is thus temporarily conferred on the component, resulting from gradients in the optical quantity that are formed parallel to the surface of the component.
摘要:
An optical component comprises a transparent network of cells juxtaposed and separated by walls parallel to a surface of the component, each cell being hermetically sealed and comprising at least one substance with an optical property, and all or part of the surface of said component comprises walls less than 100 nm thick. The optical component is thus pixelized by a cell network, the cells being separated by walls which may themselves be pixelized. Such an optical component is particularly useful for making optical elements such as ophthalmic lenses.
摘要:
The invention concerns a method for producing a transparent optical element (1) including filling cells (10) of the element with a substance having an optical property. It consists in moving an amount of the substance (20) radially on the cells, towards a peripheral edge of the optical element, such that the substance penetrates each cell. Optionally, the cells may be sealed with a film (30) fixed on the partition walls (11) of the cells. The filling and the sealing of the cells may be carried out in a single step of the process.
摘要:
A stamp for patterning onto a receiving surface of an object (101) according to a defined pattern (P) comprises a stamping surface (21) of a resilient diaphragm (20). The stamping surface is planar at rest. The pattern is reproduced on the stamping surface and the diaphragm is affixed to a rigid body (13) along a peripheral edge, so that a middle part of the diaphragm can move along a direction perpendicular to the stamping surface. The diaphragm (20) is more flexible near the peripheral edge than in the middle part. Then, the pattern (P) printed on a pseudo-spherical receiving surface (103) using the stamp exhibits few distortion.
摘要:
An ophthalmic lens comprises a transparent substrate and electro-optical means integrated with the substrate to perform an optical function in response to an electrical stimulus. The ophthalmic lens further comprises at least one photovoltaic cell integrated with the substrate to power the electro-optical means in response to an incident light, and optionally also a control circuit for controlling the electrical voltage. The photovoltaic cell may be incorporated in an opaque element occupying a small fraction of the area of the lens. Alternatively, the photovoltaic cell may be transparent and may cover at least a portion of the area of the lens.
摘要:
This invention relates to a method for preparing a photochromic latex, photochromic thin films obtained therefrom, and articles coated with such thin films, in particular photochromic ophthalmic lenses.
摘要:
This invention relates to a method for preparing a photochromic latex, photochromic thin films obtained therefrom, and articles coated with such thin films, in particular photochromic ophthalmic lenses.
摘要:
The method comprises introducing into a reactor including a transparent polymer substrate containing a free plasticizer and the photochromic additive, supercritical fluid and maintaining this fluid in the reactor for the time necessary for incorporating the photochromic additive into the article, removing the supercritical fluid and recovering the ophthalmic article in which the photochromic additive has been incorporated.
摘要:
An electrically controllable optical component (10) comprises a transparent array of cells (3) and two transparent electrodes (5a, 5b) which are parallel and lying opposite each other on either side of the array of cells. Certain of the cells located between the two electrodes contain different electroactive materials, so that said cells exhibit different respective variations in at least one optical quantity in response to an electrical signal applied to the electrodes. An optical function is thus temporarily conferred on the component, resulting from gradients in the optical quantity that are formed parallel to the surface of the component.
摘要:
The present invention relates to a method for making a device provided with at least one closed enclosure filled with at least one liquid and closed with at least one flexible membrane based on an elastic material, comprising the steps of: a) depositing on a support (100) at least one given material in liquid form, b) at least partly solidifying said given material (130), c) depositing at low pressure an elastic material onto said solidified material so as to form a membrane, the membrane and the support forming at least one closed enclosure filled with said given material, d) melting said given material (130), so as to again liquefy said given material in the closed enclosure.