503 results about "Eyeglass lenses" patented technology

A plastic spectacles lens containing an organic dye instead of a neodymium compound and having an optical transmission equivalent to a plastic spectacles lens containing a neodymium compound is provided. The plastic spectacles lens comprises a plastic lens wafer formed from a thermosetting or thermoplastic resin, or the plastic lens wafer and one, or two or more component layers formed on at least one side of the plastic lens wafer, and an organic dye satisfying the specific conditions.

A pair of eyewear has transparent waveguides in each eyewear lens. An illumination subsystem directs a beam of light through the waveguides onto a wearer's eyes. A First Purkinje point imaging subsystem for each lens uses light reflected from the eyes through the waveguides. A controller calculates from the positions of the First Purkinje points the wearer's gaze parallax angle and/or the distance to an object of interest on which the gaze of the wearer's eyes converges. The output of the controller may drive variable-focus eyeglass lenses to enable a presbyopic wearer to focus on the object. Modified Alvarez variable-focus lenses are described.

Described herein are methods and systems for forming lenses. In one embodiment, systems for use in forming eyeglass lenses are described that include one or more LED lights. The LED lights may be used to cure lens forming compositions and coating compositions. In other embodiments, methods of determining an appropriate spacing for mold members are described. In other embodiments, methods of forming anti-reflective coatings, photochromic coatings, hardcoat coatings, and combinations thereof, on eyeglass lenses, are described.

The present invention provides a method and apparatus for designing and visualizing the shape of eyeglass lenses and of the front rims of eyeglass frames, and for allowing the customer to modify the design by changing the shape and style interactively to suit his/her preference and perceived character. The present invention comprises an interface for a lens grinding machine that allows the retailer to manufacture the selected frame at the store for certain specified styles, or allows the retailer to transmit the shape and style data to a manufacturer that can implement the selected design and deliver it directly to the customer. Another embodiment of the present invention is to provide a method for designing, visualizing, modifying the shape and style of eyeglass lenses and frames remotely through the Internet or other communication channel, and to transmit the design to a manufacturer, which enables the customer to select and purchase eyeglasses directly from manufacturers.

This invention relates to an optical device such as a soft or rigid contact lens, intra ocular lens (IOL), ocular insert, or spectacle lens that improves visual acuity by reducing chromatic aberration. Chromatic aberration is reduced by filtering or blocking ultraviolet and high energy blue/violet light below about 455 nm and red and infrared light above about 655 nm. This is accomplished by including in the polymer formulations blue/violet absorbing colorants and ultraviolet light absorbers to filter or block light below about 455 nm; and red absorbing colorants and infrared absorbers to filter or block light above about 655 nm. When these materials are used for wavefront designed lenses, vision better than 20/20 is attainable.

Eyeglasses including two video displays having a surface substantially equal in area to that of a lens of the eyeglasses, that may be pivoted forwardly and outwardly to an open position for viewing, and may be folded rearwardly and inwardly to a stored position for retention by the temple members of the eyeglasses when not in use, is described. Telescoping arms permit adjustment of the distance between the video displays and the lenses to suit a user. The video displays may be mildly concave in shape so that when in the closed position against the temple members, the eyeglasses present the appearance and function of conventional eyewear.

An interchangeable lens system is provided where a first eyewear frame is configured with a snap-in engagement with any one of a plurality of sub-frames having lenses therein. The sub-frames can be engaged through a snap-in engagement with recesses in lens apertures of the first frame or with a slot formed or positioned on the bridge of the first frame. The bridge engaged sub-frame can be rotated out of view through the lens apertures.

A three-dimension display suitable for a viewer wearing a pair of eyeglasses is disclosed. The eyeglasses have two circular polarized eyeglass lenses with different polarizations. The three-dimension display includes a flat display panel, a quarter-wave plate and a patterned half-wave plate. The flat display panel has a plurality of pixels arranged in an array, wherein the flat display panel is suitable to display a linear polarized image. The quarter-wave plate is disposed between the flat display panel and the eyeglasses. The patterned half-wave plate is disposed between the flat display panel and the eyeglasses, wherein the patterned half-wave plate corresponds to a part of the pixels. The present invention also provides a fabrication method of a three-dimension display.

A system and method for remotely ordering and purchasing eyeglasses via a network includes a user interface unit, an eyeglass ordering and marketing service center, and a network that connects therebetween. The system includes an eyeglass frame selection unit for selecting eyeglass frames from among a plurality of eyeglass frames in response to user input, a unit for creating display information concerning eyeglass frames, a unit for testing the vision of the user, and an eyeglass lens selection unit for selecting lenses from among a plurality of eyeglass lenses in response to user input. The system also includes an eyeglass ordering and marketing processor wherein the frame selection unit, the vision test unit, and the lens selection unit performing a vision test in response to the requirements of the user. Appropriate eyeglass frames and eyeglass lenses are determined which best fit the user.

Systems and methods for storing, locating, identifying and coating eyeglass lens mold members for use in the production of eyeglass lenses are disclosed. An embodiment includes storing eyeglass lens mold members in a storage array. A plurality of indicators may be coupled to the storage array and associated with storage locations. A controller may be configured to select mold members, and to identify the locations of the mold members. A user may input mold member identifying information. The controller may activate indicators associated with determined storage location. A mold reader may be used to input the mold member identifying information. The mold reader may detect a light pattern formed by illumination of the identifying information and determine the identity of the mold member based on the light pattern. Additional embodiments relate to separating a cast lens from a lens mold. Such embodiments may include a clamping mechanism for elastically deforming the lens mold. The lens mold and lens may then be separated by applying a separating force.

A method and apparatus for mounting auxiliary eyeglasses on conventional eyeglasses in which magnets having shaped surfaces are attached to appendages on the auxiliary eyeglasses mating with magnets having complimentary shaped surfaces mounted on the temple extensions of conventional eyeglasses. The magnets on the auxiliary eyeglasses are mounted in sockets formed on the appendages on the auxiliary eyeglass frame fit beneath the temple extensions on the conventional eyeglasses frame to hold the auxiliary frames in place solely by the magnetic attractive force. The shaped surfaces of the magnets mate when the auxiliary eyeglasses are mounted on the conventional eyeglasses. The magnets may be recessed in sockets formed on one side while the magnets extend out of the sockets on the other side. A wide variety of magnet shapes and configurations are possible. An additional unique feature is the inclusion of a reflective surface on a portion of the rear surface of the auxiliary eyeglass lenses to act as a rearview mirror for the wearer.

A high volume lens curing system is described. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. An embodiment of the lens curing system includes an apparatus for preparing an eyeglass lens. The apparatus may include one or more lens curing units and a mold assembly. At least one lens curing unit may include a heating system. One or more computer systems may be coupled to one or more lens curing units. At least one computer system may receive prescription information for the eyeglass lens. At least one computer may control at least one lens curing unit in response to the prescription information. In some embodiments, the apparatus may include a conveyor system configured to convey the mold assembly to, through or from the apparatus. In some embodiments, the apparatus may include an annealing unit, an air distributor and/or filters.

A high volume lens curing system is described. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. An embodiment of a system may include a mold assembly, a lens curing apparatus, a mold filling apparatus and/or a controller.

A high volume lens curing system is described. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. An embodiment of the lens curing system includes an apparatus for preparing an eyeglass lens. The apparatus may prepare greater than about 25 eyeglasses lenses per hour.

A method of correcting the effects of a bend angle of 200 degrees or larger of spectacle frames, and astigmatism correcting characteristics in such spectacle frames. An exemplary embodiment of the present invention includes a design method for a spectacle lens mounted in a spectacle frame having a bend angle of 200 degrees or larger including an astigmatic power adding step, on the object side refractive surface or eyeball side refractive surface of the spectacle lens, for canceling astigmatic aberration caused by the bend angle of the spectacle frame, at a design reference point of the spectacle lens, and a step setting prismatic power by tilting the refractive surface, which is on an object side or an eyeball side, of the spectacle lens for canceling prismatic power caused by the bend angle of the spectacle frame, at the design reference point of the spectacle lens.