Abstract: A device for the subjective determination of aberrations of higher orders Xi in an optical system, in particular in an eye includes at least one observation channel into which defined plates can be introduced, the individual plates having optically active structures which correspond to a defined Zernike polynomial and to a defined amplitude, at least one order Xi of the Zemike polynomial being greater than two.

Abstract: A method, system and device for detecting an ocular dysfunction with optic neuropathy, such as the glaucoma group of diseases. More particularly, one eye is exposed to a series of flashes, and the resulting pupillary reflexes of both eyes are measured. The pupillary reflexes can then be evaluated to determine if the ocular dysfunction is present. A device that includes at least one light source can be incorporated into a system for recording and evaluating the pupillary reflexes.

Abstract: The present invention is directed toward specially tinted lenses for use in flying airplanes. In the present invention, the far field of vision is highly tinted to reduce the light from a sunlit sky, over sunlit cloud tops, or in clouds. This enables an aircraft pilot to easily see out of the cockpit into highly illuminated environments. The intermediate field of vision is essentially clear to enable the pilot to easily see a dimly illuminated instrument panel as compared to outside the aircraft. The near field of vision may have a range of tinting from clear to up to a medium tinted value for reading maps and other material. In addition, the change in tinting is discontinuous, that is, sharp, from one field of vision to another. The present invention works because the aircraft structure, that is, the nose and instrument panel, blocks outside light from coming into the intermediate field of vision where the lens is clear.

Abstract: Opaque films adhering electrostatically to lenses of eyewear, are used to train baseball fielders and golfers. For baseball, the films, placed on the lower parts of the lenses establish opaque areas which encourage the player to follow a ball visually throughout its entire path of travel toward the player's glove. The opaque areas may have a convex upper edge or a concave upper edge. In the latter case, the training aid can be used, without modification to train the player in batting. For golf an opaque film covers one lens, and an opaque film having a lenticular transparent opening in its upper part is placed on the other lens. The films encourage the golfer to keep his or her head down and behind the ball during the downswing.

Abstract: Glasses adapted to be mounted on caps having an interior band such that terminal temple connecting portions are mounted on such band at two circumferentially-spaced positions, and the glasses so mounted are further adapted to upwardly pivot such that the glasses are easily utilized with caps worn in both the brim rearward and forward positions and wherein the temple connecting portions include means for limited relative rotation therebetween.

Abstract: The present invention provides protective eyewear, also referred to as sport goggles, where the lens and the flexible frame are easily separated and interchangeable. The lens and the flexible frame are both available in a variety of colors. Therefore, the wearer can select and easily assemble a preferred color combination. More specifically, the protective eyewear includes a lens received within a flexible frame and a strap that is permanently attached to the lens for securing the eyewear to a wearer's face. There are at least two connection apertures spaced around an outer perimeter of the lens. The flexible frame has at least two connection protrusions that are aligned with the connection apertures in the lens for removably receiving the connection apertures.

Abstract: Primary and auxiliary lens assemblies are provided that allow a wearer easy usage with a reduced risk of misalignment or detachment through the use of micromagnets. Conventional magnetic auxiliary lens assemblies are difficult to manufacture and functionally limited due to the limitations of conventional magnets and the composition of the auxiliary frames. The improved lens assemblies disclosed herein instead employ high strength micromagnets advantageously aligned and embedded in the auxiliary lens frame to improve the ease and reliability of coupling to a primary frame, and to provide aesthetic and functional advantageous over the known art.

Abstract: A pivotal mechanism for suspending a lens to a spectacle is disclosed. The pivotal mechanism includes a front suspension lens module and a spectacle, characterized in that a frame support is provided to connect the two lens frame of the spectacle, the vertical face of the inner side of the two ends of the frame support is provided respectively with an engaging recess which can be circular arch shape or square or other shape, the engaging recess is mounted with engaging bead which is retractable; and the front suspension lens module includes a front suspension support having two ends for positioning front suspension lens, the bottom end face of the support is protruded to form two engaging protrusions having a shape matching the engaging recess of the spectacle, the protrusion face of the engaging protrusion is provided with an engaging hole; whereby the engaging protrusion is correspondingly inserted into the engaging recess such that the engaging bead engages with the engaging hole.

Abstract: An integral and biased lens interchange system configured to be used with various types of eyewear. The eyewear includes at least one lens and a frame having a rim supporting the at least one lens. The interchange system includes a biasing member incorporated in at least one of a bridge of the frame and the rim of the frame.

Abstract: An eye refractive power measurement apparatus which is capable of measuring even an eye with a small pupil diameter and measuring a normal eye with a large enough pupil diameter with accuracy and stability. The apparatus includes a measurement optical system for photo-receiving measurement light from a fundus via a ring-shaped aperture arranged at an approximately conjugate position with a pupil by using a photodetector, a changing device for changing a size of the ring-shaped aperture on a pupillary surface to a size different in both inside diameter and outside diameter, and a calculation device for calculating the eye refractive power based on a photo-receiving result obtained by the photodetector.

Abstract: A pair of windproof glasses has a frame assembly and a windproof shield assembly. The frame assembly has a frame, two lenses, two legs and at least two first engaging elements embedded in the frame. The windproof shield assembly mounted detachably on the frame assembly and has two windproof shields mounted detachably on sides of the frame. Each windproof shield has at least one engaging element detachably engaging respectively with at least one of the at least two first engaging elements with a magnetic force. A wearer may quickly attach the windproof shields to the frame without sequentially align the first and second engaging elements.

Abstract: A lens module using electromagnetic force to drive the focus-adjusting lens is disclosed. The lens module includes a base, two steel plates, four springs, a bottom plate, a lens holder, a coil, a lens, a top plate, two magnets, a magnet housing and a top cover. The lens holder, the coil and the top plate are disposed outside the circumference of the lens to form a linked body and the coil is clipped between the lens holder and the top plate so as to reduce diameter and volume of the coil. By the two arc magnets disposed on right and left sides of the coil instead of general circular magnets, volume of the magnets is reduced. By the four springs vertically hooked between four corners of two steel plates respectively and four corresponding brackets of the lens holder, the lens is provided with axial traction for focus adjustment. Therefore, the lens with smaller volume moves steadily to adjust the focus.

Abstract: The expandable and flexible bridge member is adapted for use a a part of clip-on sunglasses. It permits the sunglasses to be mounted on any eyeglasses, including those with a protruding bridge, with the bridge member of the sunglasses in alignment with the bridge of the eyeglasses. The bridge member can take the form of a uniquely shaped spring with a shrink wrapped plastic sleeve or one or more strips of elastic or rubber-like material. The bridge member is provided with a bridge engaging capability so that proper alignment is maintained with the eyeglasses bridge. The bridge engaging structure may take the form of a recess or a hook.

Abstract: The invention relates to a method for designing color filters which improve or modify color vision of the human eye. According to the invention a desired opponent signal function to be attained is divided by a real opponent signal function characteristic of the eye color vision to be improved or modified, the negative range of the resulting function is replaced by zero, the whole function is normalized to give a spectral transmission function, and, if desired, one or more section(s) of this spectral transmission function is modified. The invention also relates to color filter means designed by the above method.

Abstract: Glasses for use in sports activities and the like have a frame, at least one lens formed to the frame, and a strap formed to the frame which is configured to inhibit the glasses from falling off of a wearer. A leash is formed to the strap and a collar formed to the leash. The strap, leash, collar or other component of the present invention may optionally be sufficiently buoyant so as to float the glasses in water. A breakaway clip releases the collar from a wearer if the glasses, strap, leash, or collar get caught.

Abstract: Apparatuses whose system parameters and operation can be adapted in particular to a wide range of applications for imaging, testing, stimulating, measuring and treating the eye for carrying out a wide variety of examination tasks or treatment tasks substantially without taking technical steps in the manufacturing process through the control of beam manipulation units—EMS whose elements are independently controllable and which are in marked planes of the optical arrangement of the apparatus; methods for operating apparatuses of this type.

Abstract: A dichroic is positioned to separate color beams of polarized input light. The color beams are directed to microdisplays that contain correspondingly colored content in a kernel of a Light Management System (LMS). Adjustment of a voltage amplitude of the microdisplays is set to produce a maximum black state of the LMS. In one embodiment, a passive nematic liquid crystal device is utilized as a quarter waveplate. A thickness of a liquid crystal layer (d) is matched to a birefringence (?n) of the nematic such that retardation d?n =¼?.

Abstract: A polarizing conversion device in accordance with the invention includes a first optical element for condensing an incident beam and forming a plurality of intermediate beams spatially separated from one another, and a second optical element for spatially separating each intermediate beam into two polarized beams and aligning the polarization directions of the polarized beams, thereby obtaining the same type of polarized beams. In the second optical element, a shading plate is placed to prevent light from directly entering a section corresponding to a reflecting plane of a polarizing separation unit array. Since the ability of separating the intermediate beam into two polarized beams is thereby enhanced, it is possible to perform conversion into the same type of polarized beams polarized in the same direction, with high efficiency.

Abstract: Eyeglasses convertible into an eyeglass case, including a frame, seats, rotary blocks, upper and lower covers, and hinges. The frame has lenses and a larger nose pad at the center. The seats are provided on both ends of the frame and have upper and lower grooves on one side, with a screw hole disposed intermediate of the upper and lower grooves. The rotary blocks have a projection and can turn about an angle of 180 degrees in the seats. The rotary blocks further have a recess on one side with a through hole for receiving a screw rod, whereby the hinge is pivotally secured in the recess. The hinges are provided at front ends of the upper and lower covers that serve as casings of the eyeglass case or earpieces of the eyeglasses.

Abstract: Plastic injection-compression multi-cavity molding of flash-free improved-cleanliness thermoplastic spectacle lenses (16) are suitable to be robotically dip hardcoated. Special spring-loaded (25, 26) molds having variable-volume mold cavities are used in an injection-compression molding process to form, without parting line flash, pairs of a wide range of differing optical power of polycarbonate Rx spectacle lenses (16). These pairs have special molded-on design features which are specially suited for full automation, starting with a novel way for ejection out of the mold into a takeout robot which is integrated via full automation with subsequent dip hardcoating. A molded-on tab with each pair of lenses is specially suited for manipulation by SCARA type robot.