Abstract: A method for demonstrating an optical disorder includes providing two ophthalmic lenses in a first position relative to each other. Each lens includes a first vision zone and a second vision zone. The first vision zone includes a distance vision zone having a distance vision reference point and a power of between about ?1.00 Diopters and ?4.00 Diopters. The second vision zone includes a near vision zone having a near vision reference point and a power of between about +1.00 Diopters and about +4.00 Diopters. Each lens includes an Add power of between +2.00 Diopters and +3.25 Diopters; the ophthalmic lenses are repositioned to a second position relative to each other, so the distance vision zone of each lens is viewable by a wearer through the near vision zone and the near vision zone of each lens is viewable by a wearer through the distance vision zone.

Abstract: Glasses having a frame and two lenses. Each of the lenses is attached to the frame. A distance measurement module determines a distance to an object viewed from the glasses. The glasses also include a motion control module for raising and lowering the first and second lens and a controller for determining when it is appropriate to raise the first and second lenses. When the controller determines that it is appropriate to raise the first and second lenses to a raised position, the controller directs the motion control module to raise the first and second lenses. In one embodiment, each lens has a plurality of lens sections which may provide different types of focus. The lenses may be raised or lowered appropriately to allow view through one of the lens sections.

Abstract: Mask headband eyeglasses include a mask body and a pair of eyeglass lenses contained in the mask body. The mask body has a substantial headband shape. The mask body includes a front portion and a pair of support arms. Strip headband eyeglasses include a strip of material and a pair of eyeglass lenses. A top of the pair of eyeglass lenses are secured to the strip of material. Fabric covered headband eyeglasses include a fabric body and a pair of eyeglass lenses retained in the fabric body. Styled rod headband eyeglasses include a rod body and a pair of eyeglass lenses retained in the rod body. The rod body includes a bridge rod, a first lens retainer, a first support arm, a second lens retainer and a second support arm. The headband eyeglasses are worn as either a headband or as eyeglasses/sunglasses. Reversible headband eyeglasses may be worn upside down.

Abstract: The present invention discloses glasses comprising an invertible nose bridge and invertible temples. The glasses can be worn in two manners by rotating the glasses 180 degrees in the plane of the lens or lenses. The lenses are asymmetrical along an axis which is drawn through the nose bridge. The invention additionally discloses an invertible nose bridge characterized in that it comprises two recesses into which the nose fits.

Abstract: The present invention is made to provide a method for manufacturing progressive-power lenses in a manner in which inventory burden of semis can be reduced. The progressive-power lens is designed by arranging a progressive-power surface on a convex surface and combining the convex surface with a concave surface so as to meet prescription values of a spectacles wearer. The method for manufacturing progressive-power lenses includes the steps of: previously preparing the concave surface side as a concave surface semi group based on a predetermined classification table, selecting a most suitable semi-finished lens according to an order, designing a progressive-power surface on the convex surface side by adding the difference between cylindrical component of a most suitable concave surface semi selected based on an order and cylindrical component of the prescription values to the convex surface side so as to meet the prescription values, and finishing the lens by performing free-form processing.

Abstract: Glasses such as bifocals, which have refractive lenses which are rotatable at least between two positions. A manual control rotates the lenses such that if bifocal, the relatively small, high magnification zone of each lens can be moved to a high position opposed to the usual low position of fixed bifocals. The user is spared the necessity of holding the head at an awkward posture when viewing overhead objects.

Abstract: Glasses such as bifocals, which have refractive lenses which are rotatable at least between two positions. A manual control rotates the lenses such that if bifocal, the relatively small, high magnification zone of each lens can be moved to a high position opposed to the usual low position of fixed bifocals. The user is spared the necessity of holding the head at an awkward posture when viewing overhead objects.

Abstract: This is a configurable eyewear system that has at least one temple member, at least one lens, a pair of mating members, and a connector. The at least one temple member and the at least one lens are rotatably connected by coupling at least one first mating member and at least one second mating member with the connector. The invention also has at least one containment structure and at least one lens that is rotatable within the containment structure. The invention further includes an eyewear lens that has a rotator and an eyewear lens that has an anchor cut-out. In addition, the invention includes an eyewear lens, that has at least a first prescription, an interior side and an exterior side on flip sides of the lens, wherein the viewing effect of the first prescription exists from the interior side and from the exterior side.

Abstract: Adjustable focus eyeglasses with two lens units, each lens unit having two lens elements. The eyeglasses are focused by adjusting the position of at least one of the two lens elements relative to the other in a direction generally perpendicular to a viewing direction. The relative motion can be linear or pivotal about a pivot location outside the lenses.

Abstract: An eyeglasses assembly includes a pair of bifocals. Each of the bifocals includes a regular lens portion and a magnifying lens portion. A bridge is attached to the bifocals. The bifocals lie in a same plane as each other and the magnifying lens portions is aligned with each other. Each of a pair of temples has a first end and a second end. Each of the first ends is coupled to one of the bifocals. Each of the temples has a break therein to define a first portion and a second portion of each of the temples. A pair of couplers is provided. Each of the couplers rotatably couples one of the first portions to a corresponding one of the second portions. The first and second portions are rotatable with respect to each other along a common longitudinal axis.

Abstract: A method for assembling eyeglasses is disclosed. The method consists of selecting a pair of lenses from an inventory of circular lenses according to a patient's prescription. The circular lenses have the same geometric and optical center so they do not require ground (grinded) decentration. The round shape also allows the lenses to be rooted geometric and optical center, so they do not within the eyewires when the clasps are open. The lenses are mounted into the annular eyewires of the eyeglasses, rotated so that the cylindrical axis is appropriately aligned, and secured in place so that the lenses may not rotate. The correct pupillary distance is achieved by varying the width of the nosepiece. Bifocal lenses may be selected based on the patient's bifocal prescription and positioned on the existing lens according to the bifocal markings on the eyewires.

Abstract: A method and apparatus for protecting removable markings on an optical lens during grinding thereof to a desired prescription. A mask is placed over the markings prior to application of an adhesive tape, to which a low temperature alloy block is bonded for holding of the lens during grinding. The mask preferably covers only the markings, and is transparent to allow alignment thereof. Preferably the mask is held in place on the lens surface without the use of an adhesive, although a low tack adhesive may be used which does not remove the markings when the mask is peeled away from the lens. A preferred material for the mask is a static cling vinyl.

Abstract: Multi-focal prescription composite lenses having at least two corrections are made by adhering a first-part lens having a predetermined positive or negative diopter correction realized by a cylinder correction prescription on a rear surface and a preselected front surface, to a second-part lens having a predetermined prescription correction at a portion of a front surface and a preselected rear surface that is complimentary to the front surface of the first lens. A lens attachment feature, normally a tab, is integral with at least one of the first- and second-part lens, and persists in the multi-focal prescription composite lens. An eyeglass frame has and presents a complimentary feature, normally a channel within a front piece to the frame, that engages and holds the multi-focal prescription lens to the frame at an adjustable pupillary distance. Two composite lenses are assembled, and permanently mounted in and to the frame, totally without power tools.

Abstract: The present invention includes a pair of glasses to be worn by a golfer where only one of the lenses contains a reconfigured bifocal lens, i.e. bifocal element. The placement of the bifocal element may be determined by the writing hand of the wearer or may be determined by whether the wearer has a right-handed golf swing or a left-handed golf swing, depending upon the preference of the wearer. In an alternative embodiment, the bifocal element may be placed in both lenses provided that the near vision segment is positioned in the upper outermost temporal portion of the lenses.

Abstract: A liquid crystal display having a plurality of sets of matrix wiring elements, a plurality of active elements and a liquid crystal layer includes a conductive layer for being maintained at a predetermined potential, which layer is selectively provided around each of pixel electrodes individually provided for each pixel. An image information processing apparatus includes such a liquid crystal display. The selective formation of the conductive layer makes it possible to reduce cross-talk while reducing the risk of the generation of unwanted parasitic capacitance and leakage current.

Abstract: An attachment for bifocal eyeglasses including at least one eyeglass lens having a first correcting region providing corrected distant-vision and a second correcting region providing corrected near-vision, the attachment including a compensating lens sized and shaped for covering the second correcting region of the eyeglass lens without substantially covering the first correcting region of the eyeglass lens and providing optical compensation for the second correcting region so that corrected distant-vision is provided over substantially all of the first and second regions of the eyeglass lens; and an attachment for attaching the compensating lens to the eyeglasses.

Abstract: A multifocal trial frame system includes a trial frame shaped to engage the head of a wearer and which includes an adjustable nose bridge and a pair of downwardly-depending studs which are laterally adjustable relative to the nose bridge, a pair of lens brackets adjustably attachable to the studs, each including first and second lens rims; a pair of distance prescription lenses shaped to be retained by the first pair of rims; and a pair of multifocal lenses shaped to be received by the second pair of rims. The multifocal lenses each include a neutral portion and an insert portion having a close-viewing prescription. The insert portion is incorporated into the neutral portion to form a continuous, unitary lens with the neutral portion, so that the distance and the multifocal lenses cooperate to simulate multifocal eyeglasses of a predetermined prescription and configuration.

Abstract: An auxiliary nosepiece for eyeglasses is disclosed which is designed to be mountable on a pair of eyeglasses at the location of the existing nosepiece thereof. The auxiliary nosepiece of the present invention is designed to allow the user to wear a pair of eyeglasses upside down. The invention is useful in conjunction with half glasses and bifocals to allow the user to look through the close magnifying portion of the eyeglasses without having to look downwardly to do so.

Abstract: A pair of eyeglasses has a frame with hubs at each side of the frame, and a lens carrier rotatably mounted in the hubs to allow the lenses to be rotated slightly to adjust the pantoscopicity or to be rotated 180.degree. to invert multifocal lenses. The lens carrier may have studs extending laterally to be received through the hubs, and fixed by a nut, the lens carrier may include a frame for the lenses, the frame being freely rotatable on a pin extending from the hub. A spring latch then, locks the lens carrier to the frame to prevent rotation. The lens carrier can therefore be inverted and latched.