B29D11/0073

THERMOFORM WINDSHIELD STACK WITH INTEGRATED FORMABLE MOLD
20230115800 · 2023-04-13 ·

A method of installing a stack of two or more lenses on a curved substrate includes placing a moldable covering on a curved substrate, the moldable covering including a stack of two or more lenses, an adhesive layer interposed between each pair of adjacent lenses from among the two or more lenses, and a sacrificial layer disposed on an outermost lens of the stack, the sacrificial layer including a sacrificial lens and a sacrificial adhesive interposed between the sacrificial lens and the outermost lens of the stack. The method may include applying heat and pressure to the sacrificial layer and peeling off the sacrificial layer to reveal the stack of two or more lenses.

METHOD FOR PRODUCING LIGHT CONTROL PANEL USED IN OPTICAL IMAGE FORMING DEVICE
20230113203 · 2023-04-13 · ·

This method for producing a light control panel used in an optical image forming device includes: a step of forming a laminate 22 by laminating a plurality of transparent plate materials 20 having the same thickness while alternately shifting them by a predetermined length in the width direction so as to form protruding portions 21; a step of forming light-reflecting layers 13 at least on facing surfaces 16 of the adjacent protruding portions 21; a step of filling gap regions 26 between the adjacent protruding portions 21 with a transparent resin 27; a step of cutting and separating the protruding portions 21 integrated at each side of the laminate 22 from a laminated body 28 thereby making preforms 29, 30 for the light control panels 10, 11; and a step of flattening both end surfaces of each of the preforms 29, 30 in the width direction.

Method for manufacturing polarizing plate using mask film and polarizing plate manufactured by same
11623420 · 2023-04-11 · ·

The present specification relates to a method for manufacturing a polarizing plate using a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same.

Method for producing an accommodative intraocular lens
11602911 · 2023-03-14 · ·

A method for producing an accommodative intraocular lens includes providing first and second components and a support body with an interior space and open to the top, fastening the first component to the support body, generating pressure which is higher in the exterior space than in the interior space such that the first component deforms downward, producing an adhesive surface on the upper side of the first component and/or on the second component, applying a liquid to the first component from above into the latter's downwardly deformed region, the liquid at no time contacting the adhesive surface, fastening the second component to the first component with the adhesive surface, as a result of which the accommodative intraocular lens is formed and the liquid is encapsulated with the first component and the second component in a cavity arranged in the interior of the intraocular lens.

Optical Articles Comprising Encapsulated Microlenses and Methods of Making the Same

The present disclosure includes optical articles comprising a lens having first and second lens surfaces and a protective layer having first and second protective surfaces that is coupled to the lens such that the first protective surface is disposed on the second lens surface. The optical article can comprise a plurality of convex or concave optical elements defined on the second lens surface or the first protective surface. The protective layer can have a maximum thickness larger than a maximum height of each of the optical elements such that the protective layer encapsulates the optical elements.

METHOD OF LAMINATING A FUNCTIONAL FILM ONTO AN OPTICAL ARTICLE AND OPTICAL ARTICLE
20230106436 · 2023-04-06 ·

This method of laminating a functional film onto an optical article includes: thermoforming the functional film so as to provide the functional film with a predetermined target curvature based on a curvature of a face of the optical article on which the functional film is to be applied; applying the functional film onto that face of the optical article; pressing the functional film against that face of the optical article so as to adhere the functional film to that face of the optical article. This method further includes heating the functional film at at least one predetermined temperature after the applying, so that the functional film conforms to the curvature of that face of the optical article.

SHAPING AN OPHTHALMIC LENS

Apparatus and methods are described including an additional lens (24) made from an amorphous viscoelastic material and having an optical design. A curvature of the additional lens (24) is changed such as to conform with a curvature of abase eyeglasses lens (22), without causing a loss of the optical design of the additional lens (24), by heating the additional lens (24) to a temperature at which a Tan Delta of the amorphous viscoelastic material is between 0.2 and 0.8, and shaping the additional lens (24). Subsequently, the additional lens (24) is adhered to the base eyeglasses lens (22). The optical design of the additional lens (24) is such that, upon being adhered to the base eyeglasses lens (22), the adhered base eyeglasses lens (22) and the additional lens (24) provide a combined lens (20) having a desired optical prescription. Other applications are also described.

SPLIT GRADIENT INDEX LENS
20220317341 · 2022-10-06 ·

The systems, devices, and methods described herein relate to split GRIN lenses which may compartmentalize a single optical element into various zones of stacked film layers with geometrically coupled interfaces. The optical zones may include independent index of refraction values but may be connected through a nested GRIN contour geometry to allow for fabrication of all zones simultaneously.

A THERMOFORMING MACHINE AND METHOD
20230143337 · 2023-05-11 ·

This thermoforming machine includes a thermoforming chamber having at least one heated air inlet through which heated air flows into the thermoforming chamber at a controlled pressure. The air inlet cooperates with a heated air flow distribution regulator located in the thermoforming chamber and through which the heated air flows out of the thermoforming chamber at a predetermined temperature. The regulator includes a heated air flow regulating mask receiving heated air flow, having a plurality of flow restricting elements providing different air flow restrictions.

PRIMER COATING COMPOSITION FOR POLARIZING OPHTHALMIC LENS
20230145154 · 2023-05-11 ·

A primer coating composition for bonding a functional laminate to a lens during cast-polymerization, including an acrylic polymer; a urethane acrylate oligomer; a reactive component capable of reacting with a lens-casting monomer for casting the cast-polymerized lens, a UV initiator or a thermal initiator, and a solvent. A method for cast-polymerizing a lens, including applying the primer coating composition to at least one external surface of a functional laminate; cutting and forming the functional laminate, placing the shaped functional laminate to which the primer coating is applied and a monomer for casting a lens in a casting cell so that the monomer contacts the primed surface of the functional laminate, and cast-polymerizing the monomer in the casting cell. An ophthalmic lens, including a cast-polymerized lens including at least one polymer, a functional laminate, and a primer coating obtained y curing the primer coating composition and deposited on at least one external surface of the functional laminate.