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: According to one configuration, an inductor device includes a core fabricated from multiple different types of magnetically permeable material. The inductor device includes an electrically conductive path extending through the core. A magnetic permeability of the core varies in magnitude depending on a distance with respect to the electrically conductive path.

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: 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: 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: A method for authorizing access to an associated resource based on processing a series of barcode orientation scans. The method receives, by a barcode reader, a series of barcode orientation scans. The method further determines if the series of barcode orientation scans match a pre-selected combination of barcode orientations stored on the barcode reader and authorizes access to an associated resource, in response to the series of barcode orientation scans matching the pre-selected combination of barcode orientations stored on the barcode reader.

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: The present application provides a packaged gate drive circuit having a transformer. The transformer which is used to transfer both signals and power from a primary side to a secondary side. The windings of the transformer are formed using a combination of tracks and wirebond wires. The transformer is positioned in a well formed using a first insulating material and covered with a second insulating material.

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: The present disclosure relates to a power module. The power module includes an inverse-coupled inductor and a plurality of half-bridge modules. The inverse-coupled inductor includes: a plurality of windings and a magnetic core. The plurality of windings are linear windings between a first plane and a second plane. The first magnetic core and the second magnetic core are located at both ends of each of the windings, the magnetic core pillars connect the first magnetic core and the second magnetic core to form a plurality of magnetic core units, and the plurality of magnetic core units surround corresponding windings in a same direction from the first plane to the second plane. Projections of the plurality of magnetic core units on the first plane form a plurality of closed areas.

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: A tap changer assembly includes a tap changer assembly housing completely enclosing a tap changer volume and an overflow volume. The tap changer assembly includes at least a part of a tap changer located in the tap changer volume. The tap changer volume and the overflow volume are connectable to each other via an overflow assembly. When a pressure in the tap changer volume is equal to or higher than the predetermined overflow pressure threshold, fluid communication between the tap changer volume and the overflow volume via the overflow assembly is enabled, and is prevented when the pressure is lower that the threshold. When fluid communication is enabled, an area at least 10% of a largest internal cross-sectional area between the tap changer volume and the overflow volume is enabled for fluid communication via said overflow assembly.

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.

Abstract: A fluid-cooled magnetic element. Coils are formed with small gaps between the turns of the coils. Coolant flow through the gaps cools the coils.

Abstract: An apparatus includes a first patch transformer segment, a second patch transformer segment, and a third patch transformer segment. The first, the second and the third patch transformer segments are generally coupled in series in a folded path between a first port and a second port.

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: Apparatuses, systems and methods for providing improved intraocular lenses (IOLs), include features for reducing side effects, such as halos, glare and best focus shifts, in multifocal refractive lenses and extended depth of focus lenses. Exemplary ophthalmic lenses can include a continuous, power progressive aspheric surface based on two or more merged optical zones, the aspheric surface being defined by a single aspheric equation. Continuous power progressive intraocular lenses can mitigate optical side effects that typically result from abrupt optical steps. Aspheric power progressive and aspheric extended depth of focus lenses can be combined with diffractive lens profiles to further enhance visual performance while minimizing dysphotopsia effects. The combination can provide an increased depth of focus that is greater than an individual depth of focus of either the refractive profile or the diffractive profile.

Abstract: A junction box for a weapon accessory device is provided for electrically coupling a remote control unit to the weapon accessory device, the remote control unit having one or more manually actuatable switches. The junction box comprises a housing having a mounting face and a connection face, wherein the mounting face is configured to face a complementary mounting surface of the weapon accessory device when the junction box is mounted to the weapon accessory device. The connection face is configured to couple to an electrical cable electrically coupled to the remote control unit. A plurality of electrical conductors are held within the housing and comprise mating contact portions disposed at the mounting face and configured to contact aligned contacts on the weapon accessory device.