Described herein is a method for producing a contact lens comprising a central photochromic zone that has a diameter of about 13 mm or less and is concentric with the central axis of the contact lens. The method comprises: applying, in the center of the molding surface of a male mold half, a drop (having a volume of about 5 μL or less) of a first polymerizable fluid composition containing at least one photochromic compound and a relatively-high molecular weight polysiloxane vinylic crosslinker for increasing the viscosity and adhesion on the molding surface of the male mold half; dosing a second polymerizable fluid composition in a female mold hald; closing the female mold hald with the male mold half with the drop thereon to form a molding assembly; and curing the second polymerizable fluid composition and the drop of the first polymerizable fluid composition in the molding assembly.

The present invention relates to a photochromic compound having a core fused ring structure represented by at least one of the following Formula (Ia) or Formula (IIa), (Ia) (IIa) Independently for each of Formula (Ia) and Formula (IIa): R.sup.1 is in each case independently selected from substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —SO.sub.2R.sup.5, or —C(O)—XR.sup.5, where, X is selected from a single bond, —N(R.sup.5)—, or —O—, and R.sup.5 in each case is independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; and B and B′ are each independently selected from substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. The present invention also relates to photochromic compositions and articles including such photochromic compounds.

##STR00001##

The invention relates to an ophthalmic article (1) in particular for sunglasses, comprising: first layer (9) made of photochromic cellulose triacetate having a rear face (9.sub.R) to be oriented toward an eye (7) of a user and a front face (9.sub.F) to be oriented toward the field of vision (13) of the user, and a second layer (10) made of polyamide having a rear face (10.sub.R) to be oriented toward an eye (7) of a user and a front face (10.sub.F) to be oriented toward the field of vision (13) of the user, the first layer (9) being disposed proximate to the field of vision (13) of the user with regard to the second layer (10) being disposed proximate to the eye (7) of the user.

An optical lens intended to be placed before a wearer's eye and having a front surface and a rear surface, the rear surface being the surface intended to be the closest to the wearer's eye when the optical lens is placed before a wearer's eye, the optical lens having a mineral glass element on the front surface and further comprising an eye protector that is configured to prevent any piece of the mineral glass element from reaching the wearer's eye when the element is broken, said eye protector comprising a polymer wafer arranged on the rear surface.

A photochromic curable composition comprising a radically polymerizable monomer having at least one oxetanyl group in one molecule, a photochromic compound and radically polymerizable monomers other than the above polymerizable monomer, and a photochromic cured body obtained by polymerizing the photochromic curable composition.

A device and method of making the device is described. In some implementations, an eyeglass lens is colored so that it is semi-opaque or opaque and approximates the color of a particular user's skin. In an example, the lens can be colored by placing an adhesive material on the front or rear surface of the lens. In an additional or alternative example, the lens can be colored by dyeing the lens material. In an additional or alternative example, the lens can be colored by painting the lens material. The colored lens blocks the view of passersby of the ocular region of the wearer and is itself inconspicuous because the approximate skin color camouflages its presence.

Provided is a photochromic film laminate including (a) a first polymeric film layer having a first surface and an opposing second surface; and (b) an adhesive layer over at least a portion of and in direct contact with the first surface of the first polymeric film layer (a). The adhesive layer is formed from a composition of a thermoplastic polyol having a number average molecular weight greater than or equal to 30,000 g/mol; a poly(anhydride); and a photochromic material. The thermoplastic polyol (i) is present in the composition in an amount greater than or equal to 60 percent by weight based on total combined weight of solids present in the thermoplastic polyol (i) and the poly(anhydride) (ii). Also provided is an optical article prepared with the photochromic film laminate.

The photochromic compound is represented by general formula (1):

##STR00001## wherein, X denotes an oxygen atom, or a nitrogen atom unsubstituted or substituted by a substituent selected from Y.sup.1 group: —R.sup.1, -A.sup.1(B.sup.1).sub.l(A.sup.2).sub.m(B.sup.2).sub.nR.sup.2, -A.sup.3A.sup.4, -A.sup.5R.sup.3 R.sup.1 denotes a cyano group or the like, R.sup.2 denotes an alkyl group or the like, R.sup.3 denotes a halogen atom or the like, A.sup.1, A.sup.2, A.sup.3, and A.sup.5 each independently denote an alkylene group or the like, A.sup.4 denotes a naphthyl group which may be substituted, B.sup.1 and B.sup.2 each independently denote a divalent group selected from the following group:

##STR00002## l, m, and n are each independently 0 or 1, provided that n is 0 when m is 0, Y.sup.2 denotes a hydrogen atom or the like, R denotes a hydrogen atom or the like, and

##STR00003##

denotes a norbornylidene group, a bicyclo[3.3.1]nonylidene group, or an adamantylidene group which may each be substituted.

Various embodiments of the present invention provide systems, methods, and processes for constructing a contact lens. In one embodiment, a contact lens assembly is provided, comprising: a curved polymer polarizer with an aperture; a lenslet disposed inside the aperture, wherein the lenslet enables imaging near objects; and a filter attached to the lenslet. In further embodiments, a method for fabricating a flexible contact lens is provided, comprising: fabricating an element having an extrusion; providing a front concave mold, wherein the front mold has an intrusion to accommodate the extrusion of the optical element; affixing the extrusion of the optical element to the intrusion of the front mold; attaching a back convex mold to the front concave mold, thereby forming a mold cavity; and filling the mold cavity with a pre-polymerized liquid, whereby upon polymerization, the pre-polymerized liquid forms the flexible contact lens and the optical element is partially encapsulated within the lens.

The present invention provides: a photochromic curable composition which contains (A) a (meth)acrylate composition that contains from 24 to 100% by mass of a polyfunctional (meth)acrylate which has three or more (meth)acryloyl groups in each molecule and (B) a photochromic compound that is obtained by bonding at least one specific naphthopyran to a long-chain group having a number average molecular weight of from 300 to 10,000; and a photochromic optical article which is obtained by polymerizing this photochromic curable composition.