Abstract: An aspect of the present invention relates to a polarizing lens comprising a polarizing layer on a substrate, wherein the polarizing layer comprises polarization axes that are at least partly in the form of a closed curve.

Abstract: An aspect of the present invention relates to a polarizing lens comprising a polarizing layer on a substrate, wherein the polarizing layer comprises polarization axes that are at least partly curved.

Abstract: The invention relates to an ophthalmic lens arrangement (10) comprising a polariser (11) for polarising light in a polarisation axis; at least one lens cell (13) including a switchable light rotator; a lens member (15) having birefringence properties such that incident light encounters a first refractive index n on an ordinary axis or a second refractive index on an extraordinary axis according to the rotation of the incident light; and a sub lens member (17) having a refractive index n; characterized in that: the or each rotator is operable to rotate incident light by 0° or by 90°, and the polariser is arranged such that the polarisation axis coincides with either the ordinary axis or the extraordinary axis of the or each lens member. The invention further relates to an apparatus for and a method for demonstrating a plurality of optical functions.

Abstract: Curved lenses and methods for making curved lenses are described. One embodiment of a method of making a curved lens includes curving a lens blank made of a linear polarizer layer laminated together with a plurality of polymeric layers. The lens blank is curved by engendering rotational motion about a rotational axis of a roller having a forming surface thereon and lateral motion of a belt in contact with the forming surface. The lens blank is heated and pressed between the belt and the forming surface at a pressure, the pressure being supplied by tension on the belt. The pressure is maintained for a time sufficient to allow the lens blank to conform to the shape of the forming surface. Methods of the invention may be used to make curved lenses with different polarization properties and curvatures.

Abstract: A method for laminating a functional film on to an optical base element and a tri-layer adhesive system for use in the method. The tri-layer adhesive includes a first latex adhesive layer disposed on the functional film and a second latex adhesive layer disposed on the optical base element. An HMA layer is disposed in between the latex layers to form a tri-layer adhesive to permanently retain the functionalized film on the optical base element. The method includes first coating a latex adhesive on the functional film and second coating a latex adhesive on the optical base element. An HMA is then coated on to one of the dried latex adhesive layers. The film is hot pressed on to the optical base element with the HMA sandwiched in between the latex layers to form a laminated optical device.

Abstract: An infrared absorbing polarized eyeglass lens substrate includes a polarizing element including a polarizing film and a polyurethane resin material containing an infrared absorbing agent and covering both surfaces of the polarizing film, and an eyeglass lens substrate made of a polyurethane resin not containing an infrared absorbing agent and configured to be ground for adjusting lens power. The polarizing element is superposed on one side of the eyeglass lens substrate and integrated therewith by insert molding which accompanies polymerization reaction of the polyurethane resin material.

Abstract: A method of making an optical element that includes a thermoplastic power portion, the method including laminating a first thermoplastic sheet to one side of a functional film, laminating a second thermoplastic sheet to a second side of the functional film, and affixing either the first thermoplastic sheet or the second thermoplastic sheet to the power portion, with the other of the first or second thermoplastic sheets being open to atmosphere.

Abstract: A wavefront device produces adjustable amplitudes in optical path differences and adjustable axis orientation angles. two substantially identical wave plates have a wavefront profile of at least the third order Zernike polynomial function which are not circularly symmetric, as denoted by Z(i,j) where i?3 and j?0. The wave plates are mounted in rotatable mounts with their optical centers substantially aligned with each other. An subjective wavefront refraction instrument and method are provided to correct low and high order aberrations of the eye, using the adjustable wave plates that have astigmatism and higher order Zernike function optical path difference wavefront profiles.

Abstract: Curved polarization filters and methods of manufacturing thereof. One method includes laminating a planar polarization layer to a planar retarder layer at a predetermined orientation and bending the laminate to create a curved filter. The strain on the retarder layer results in stress-induced birefringence, and the predetermined orientation of the retarder substantially compensates for the stress-induced birefringence.