Abstract: A method of eyewear manufacture including: adhering frame material onto a surface of a corrective lens, the frame material extending along at least 10% of an edge circumference of the lens; and attaching the lens to a second lens.

Abstract: Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact lenses and intraocular lenses (IOLs). Exemplary IOL optics can include an aspheric refractive profile imposed on a first or second lens surface, and a diffractive profile imposed on a first or second lens surface. The aspheric refractive profile can focus light toward a far focus. The diffractive profile can include a central zone that distributes a first percentage of light toward a far focus and a second percentage of light toward an intermediate focus. The diffractive profile can also include a peripheral zone, surrounding the central zone, which distributes a third percentage of light toward the far focus and a fourth percentage of light toward the intermediate focus.

Abstract: A contactless visualization system is for a surgical microscope for eye surgery. The system includes an ophthalmic loupe positionable in front of a patient's eye and for supplying a real and vertically and laterally inverted image of an eye fundus of the patient's eye in an intermediate image plane observable by the surgical microscope. The ophthalmic loupe includes a first and a second lens element. In a state positioned in front of the patient's eye, the first lens element is closer to the patient's eye than the second lens element. A wall extends from the first to the second lens element. The wall has a free end in a form of a mount in which the second lens element is held. The mount includes at least one cutout in which an edge of the second lens element is exposed in order to give a surgeon operating space.

Abstract: In the device and method, the angle of incidence of slit light onto an eye to be examined is determined from its Purkinje reflection recorded in an image by measuring the offset from the reflection to the apex of the image of the cornea. In another embodiment, Purkinje reflections of light sources arranged around the optical axis of the microscope are correlated with a reference pattern of radial stripes in order to determine the offset between the optical axis and the apex of the eye.

Abstract: The blood flow analysis apparatus includes an acquisition unit and an extractor. The acquisition unit is configured to acquire blood flow information representing time-course changes in a blood flow velocity of a single retinal artery or retinal vein. The extractor is configured to extract one or more parameters corresponding to change in the blood flow velocity from the blood flow information.

Abstract: A contact lens may include a body of contact lens material extending between a first surface and a second surface. An electromechanical component may be supported in the contact lens material between the first surface and the second surface. A support comprising a plurality of pillars may be formed of the contact lens material and may extend from at least one of the first surface and the second surface to the electromechanical component.

Abstract: A vehicular interior rearview mirror assembly includes a mirror head and a mirror mount that attaches at the interior surface of the vehicle. The mirror head includes an actuator having a body portion attached at a back plate at the rear of the reflective element and an adapter plate attached at the mirror mount and pivotable relative to the body portion. The actuator includes a pair of arcuate gear elements that attach at one end to the adapter plate and that are movably received at the body portion. The actuator includes a pair of motors operable to rotatably drive respective gears that engage the respective arcuate gear elements. When the gears are rotably driven, the gears impart pivotal movement of the body portion and mirror head in tandem relative to the mirror mount to adjust the mirror head relative to provide a rearward view for a driver of the vehicle.

Abstract: A full-color reversible switching device controlled by electrochemistry, and its preparation method and use are provided. The device controlled by electrochemistry includes a color-changing layer, an electrolyte and a counter electrode. The color-changing layer includes a substrate, a conductive layer and an active material layer. The active material layer and the conductive layer form a physical interference color. The electrolyte is connected to the conductive layer or the active material layer. When an electrochemical reaction occurs between the electrolyte and a surface of the conductive layer or the active material layer, the thickness of the active material layer changes. The device controlled by electrochemistry has rich tunable colors that can cover the entire color gamut, and can achieve reversible switching of colors at a small voltage.

Abstract: An example system for tracking motion of an eye during an eye treatment includes an image capture device configured to capture a plurality of images of an eye. The system includes controller(s) including processor(s) that receive the plurality of images from the image capture device. The processor(s) implement a plurality of trackers. Each tracker is configured to detect a respective feature in the plurality of images and provide, based on the respective feature, a respective set of data relating to motion of the eye. The respective features detected by the plurality of trackers are orthogonal relative to each other and the respective sets of data provided by the plurality of trackers are independent of each other. The processor(s) coalesce the sets of data from the plurality of trackers and determine an indicator of the motion of the eye based on the coalesced sets of data.

Abstract: A progressive addition lens and the related technology, the progressive addition lens including a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion between the near portion and the distance portion and having a progressive refraction function, in which the transmission astigmatism is added to the near portion and the intermediate portion of the distance portion, the near portion, and the intermediate portion, and in the near portion and the intermediate portion to which the transmission astigmatism is added, the progressive addition lens further includes a portion where an amount of horizontal refractive power is greater than an amount of vertical refractive power after subtracting the refractive power for astigmatism correction.

Abstract: An optical mounting assembly is adapted for use with wrap-around type eyeglass frames of the type that utilize a single sheet of curved lens material to form right and left lenses which may carry through-the-lens or TTL oculars or loupes. The optical mounting assembly may attach to an existing pair of wrap-around type eyeglass frames, or the invention may include the frames. The bridge portion of the frames and the lens material are sandwiched between front and rear components, with a nose pad component coupled to the rear component. The nose pad component may comprise a pair of bendable wire arms covered with, or terminating in, cushioning material. An illuminator or video camera may couple to the front component. The rear component may be adapted to receive an optical accessory such as a light-blocking or light-admitting filter material.

Abstract: Apparatus and methods are presented for non-contact in-vivo measurement of one or more properties of a cornea or tear film with spatial resolution. In certain embodiments the cornea/tear film is probed at substantially normal incidence with a converging array of beamlets from a multi-wavelength optical source, and the reflected light analysed interferometrically to generate a time sequence of pachymetry maps. Thickness variations arising from differences between the external and intraocular pressure, e.g. from the ocular pulse or externally applied pressure changes, are measured and analysed to obtain information on a biomechanical response of the cornea. In preferred embodiments the time variation in tear film thickness is measured and subtracted to yield normalised pachymetry data for the biomechanical analysis. In certain embodiments the apparatus is configured to measure the dynamics and profile of the tear film, using either converging or substantially parallel arrays of beamlets.

Abstract: The present invention relates to a novel screw that causes drag and prohibits unwinding of the screw. The screw is designed for use in eyeglasses for securing eyeglass lenses and prohibiting same from falling out. The screw includes a fillister head, a drive disposed on the head for engaging a screwdriver, a shaft running from the head to a terminal end, the shaft having non-contiguous circumferential threads along the length of the shaft for rotatably sliding the screw through slots. The screw includes a longitudinal channel in the form of a slot disposed along the surface of the shaft and through the length of the shaft. A planar bar of neoprene or any other polypropene can be inserted in the channel which assists with prohibiting unwinding of the screw when the screw is in use.

Abstract: An interior rear view mirror assembly for a vehicle includes a mirror housing rotatably attached to a housing holder which is adapted to be attached to an interior of the vehicle, the mirror housing including a first rear view side to which a reflective mirror element is attached, and a second rear view side to which a display device with a display screen is attached to, where a camera is connected to the display device establishing a display system to provide an image to the display screen; and an actuator unit configured to automatically rotate the mirror housing to the first or second rear view side. A vehicle and a method may be used to operate the interior rear view mirror assembly.

Abstract: The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one main face of which being successively coated with a first high refractive index sheet which does not comprise any Ta2O5 layer, a second low refractive index sheet a third high refractive index sheet, a monolayer sub-layer having a thickness higher than or equal to 50 nm, and a multilayer interferential coating comprising a stack of at least one high refractive index layer and at least one low refractive index layer. The reflection performance on at least one main face is improved in scotopic conditions, fornear infrared light or for a wide range of angles of incidence.

Abstract: A method and device for determining an optical equipment adapted to a wearer and comprising an optical lens and a spectacle frame, the method including providing data relative to the wearer comprising optical requirements of the wearer, providing an optical cost function related to an optical function parameter of the optical lens and being defined based at least on part of the data relative to the wearer, providing a comfort cost function related to a comfort parameter, providing a mechanical interaction cost function that varies as a function of a geometrical parameter of spectacle frame and a geometrical parameter of optical lens, and determining an optical equipment that minimizes a global cost function, the global cost function being a weighted sum of all cost functions.

Abstract: An electro-optic media includes either a plurality of microcapsules in a binder, a polymeric sheet containing sealed microcells, or droplets in a continuous polymeric phase. Each of the microcapsules, microcells, or droplets contain a dispersion that includes a plurality of charged composite particles and a suspending fluid, and the charged particles move through the suspending fluid under the influence of an electric field. The composite particles include one or more types of pigment particles that are at least partially coated with a polymeric material. Each of the binder, polymeric sheet, continuous polymeric phase, the charged composite particles, and the suspending fluid have an index of refraction, and a difference between the index of refraction of the composite particles and at least one of the binder, polymeric sheet, continuous polymeric phase, and solvent is less than or equal to 0.05 at 550 nm.

Abstract: An observation carrier for a microscope is provided. The observation carrier includes a rotation base and a driving unit. The rotation base is adapted to carry a base material, the base material is adapted to receive a droplet, and the droplet includes a sample liquid and at least one sample particle suspended in the sample liquid. The driving unit is connected to the rotation base and is adapted to drive the rotation base to rotate, such that the sample liquid on the base material is removed by a centrifugal force produced by the rotation of the rotation base. In addition, a method of using the observation carrier for a microscope is also provided.

Abstract: The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one main face of which being successively coated with a first high refractive index sheet which does not comprise any Ta2O5 layer, a second low refractive index sheet a third high refractive index sheet, a monolayer sub-layer having a thickness higher than or equal to 100 nm, a multilayer interferential coating comprising a stack of at least one high refractive index layer and at least one low refractive index layer, and a filtering interferential system that selectively reflects or transmits visible light in a narrow range of wavelengths.

Abstract: An optical article that includes an ophthalmic lens that includes a substrate, a first layer comprising liquid crystals being disposed on at least part of the substrate, and a first and a second electrode made of a conductive material, and a voltage source electrically connected to the first and second electrodes and configured to control an orientation of the liquid crystals depending on the voltage applied. The ophthalmic lens further includes a second layer made of photoconductive material placed between the electrodes, and the optical article further includes a light projector configured to project a light pattern on the second layer of the ophthalmic lens, the second layer being locally conductive when illuminated by the light pattern, the light pattern corresponding to a pattern of refractive index modification to be induced by the liquid crystals of the first layer.