Abstract: Eyewear in the form of a pair of lenses and a pair of frame halves, each frame half supporting a lens. The frame halves are releasably connected to one another at the bridge between the lenses at their inner ends and the frame halves have frame half outer ends on opposite sides of said lenses from the bridge. The eyewear also includes first and second temples having temple first ends and temple second ends, the temple first ends being pivotally connected to the frame halves outer ends, each temple including a channel. The eyewear also includes a flexible strap having first and second flexible strap ends, to which are affixed first and second sliders, each slider affixed to one end of the flexible strap at the first and second flexible strap ends.

Abstract: The present invention improves slidability between a moving part and a support member that supports the moving part. A head-up display device includes: a display that emits display light; a moving part on which a first sliding surface is formed; and a support member on which a second sliding surface that comes into contact with the first sliding surface is formed. The support member movably supports the moving part. The head-up display device displays vehicle information as virtual images from the display light. Linear protrusions and recesses are formed on the first sliding surface and/or the second sliding surface following the trajectory along which the moving part moves.

Abstract: Disclosed is eyeglasses equipment (1) including a frame (10), and at least one ophthalmic lens (20) mounted into the frame. The equipment includes a colored interface (30) that is placed between the frame and the lens.

Abstract: Methods, systems and apparatuses are presented for controlling ambient light transmission through electrochromic devices comprising a plurality of dimmable zones.

Abstract: An optically anisotropic layer including a polymer and a compound having a mesogen skeleton, wherein the polymer has a property such that a film of the polymer that is formed by a coating method using a solution of the polymer satisfies nz(P)>nx(P)?ny(P), wherein nx(P) is a refractive index in a direction which, among in-plane directions of the film, gives a maximum refractive index, ny(P) is a refractive index in a direction which is perpendicular to the direction of nx(P) among the in-plane directions of the film, and nz(P) a refractive index in a thickness direction of the film, and the compound having a mesogen skeleton shows an in-plane retardation with reverse wavelength distribution under specific conditions.

Abstract: A lens module includes lenses sequentially arranged from an object-side toward an image plane sensor and comprising refractive power, respectively. A second lens of the lenses has a convex object-side surface and a convex image-side surface. A first lens and a third lens of the lenses are symmetrical to each other in relation to the second lens.

Abstract: An embodiment of the present disclosure provides a three-dimensional display apparatus, including: a pixel structure formed by a plurality of sub-pixels, a three-dimensional grating formed by a plurality of strip gratings arranged along a row direction; wherein, the respective sub-pixels in each row of sub-pixels are aligned, the respective sub-pixels in every two adjacent rows of sub-pixels are staggered by a half width of the sub-pixel, in the row direction, and each sub-pixel is different in color from the respective sub-pixels adjacent thereto; the respective strip gratings have a same extension direction and have a certain inclination angle with respect to the row direction; and each strip grating corresponds to at least two sub-pixels, which display different viewpoint images, in each row of sub-pixels.

Abstract: An interlayer comprising a first polymer layer, a polarization rotary optical film and optionally a second polymer layer, and multiple layer panels formed from such interlayers. The panels may exhibit desirable optical properties, including, for example, less image “ghosting,” when used as part of a heads-up-display (HUD) display panel for use in automotive and aircraft applications.

Abstract: An imaging lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has negative refractive power. The second lens element has positive refractive power. The fifth lens element has positive refractive power.

Abstract: An optical stack includes first and second lenses, a partial reflector, a reflective polarizer, and a retarder. The reflective polarizer is curved about two orthogonal axes and includes at least one layer that is substantially optically uniaxial at at least one location. An optical system includes the optical stack disposed between an image surface and an exit surface. The optical system is configured such that substantially any chief ray transmitted from the image surface to the exit surface is first incident on the reflective polarizer at an angle of incidence less than 30 degrees.

Abstract: A system is provided that includes a light source, a first mirror, a second mirror, and a support structure. The light source provides light energy along an optical path extending along an optical axis. The first mirror receives and re-directs the light energy from the light source, and pivots about an azimuth axis. The second mirror receives the re-directed light energy from the first mirror and to re-direct the light energy toward a target through a window. The support structure has a first end and a second end. The first end is mounted at a support rotation point, with the support structure rotating about the support rotation point as the first mirror pivots about the azimuth axis. The second mirror is mounted to the second end of the support structure.

Abstract: Provided is an illumination device capable of illuminating a partial range in an illumination range at higher or lower brightness than the other ranges without the need of a complicated processing configuration. The illumination device includes a coherent light source that emits a coherent beam, an optical element 3 including a plurality of diffusion subelements 15-1 to 15-9 each of which guides the coherent beam incident thereon, such that the coherent beam illuminates a corresponding one of illumination object subregions 19-1 to 19-9, and an optical scan unit that guides the coherent beam emitted from the coherent light source and thereby scans the coherent beam on the plurality of diffusion subelements 15-1 to 15-9. The plurality of diffusion subelements 15-1 to 15-9 include diffusion subelements differing in size.

Abstract: The Disclosure concerns a laser projection arrangement and a process for the generation of virtual images, the purpose of which is to present a solution which allows a representation of multiple virtual images in different distances or planes and different points of view and that can be manufactured economically. On the arrangement side, this purpose is solved when one of at least two picture generating units that generate virtual images that differ in their wavelength and/or their polarization is arranged and when a holographic optical element is arranged on or in the projection surface.

Abstract: The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, an aperture, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The camera optical lens further satisfies specific conditions.

Abstract: A composite film including a first polarizing film, at least one second polarizing film, and at least one first phase compensation film is provided. The first polarizing film has a first transmission axis. Each second polarizing film has a second transmission axis parallel to the first transmission axis. The at least one first phase compensation film is disposed between the first polarizing film and the at least one second polarizing film. Each first phase compensation film has a first optical axis. An orthographic projection of the first optical axis on the first polarizing film is parallel to an axial direction of the first transmission axis, and a first included angle between the first optical axis and the first polarizing film is greater than 0 degrees and less than 90 degrees. A display device is also provided.

Abstract: A privacy film, a privacy display system, a display substrate and a display device are provided. The privacy film includes a first electrode layer, a second electrode layer and an adjustment film layer between the first electrode layer and the second electrode layer. The adjustment film layer includes a plurality of first adjustment units and a plurality of second adjustment units alternately arranged along a first direction, the first adjustment unit has a width larger than that of the second adjustment unit in the first direction; and when the first electrode layer and the second electrode layer are powered on, the first adjustment unit has a light transmittance lower than a first threshold, and the second adjustment unit has a light transmittance higher than a second threshold, and the second threshold is larger or equal to the first threshold.

Abstract: Embodiments of the present invention provide a system and method to automatically screen images from a plurality of fundus cameras for a plurality of retinal diseases. The system comprises stacked autoencoders, amplitude modulation-frequency modulation filters, and artificial neural networks. An embodiment of the present invention uses a multi-class classifier, such as a support vector machine (multi-class SVM) classifier, to determine a plurality of retinal pathologies. An exemplary embodiment of the present invention is validated on a proprietary database of thousands of images (for example over 250,000 retinal images) from multiple cameras, ranging from the table-top fundus cameras to portable hand-held cameras.

Abstract: An optical device includes a titanium dioxide substrate layer on a quartz base of a substrate. The substrate is configured to focus light in visible wavelength spectrum of 400 nm to 700 nm. The substrate comprises a first zone and a second zone. In some embodiments, the first zone and the second zone are concentric circles. A plurality of resonators are disposed on the substrate, the plurality of resonators comprising a first plurality corresponding to the first zone and a second plurality corresponding to the second zone. Each resonator is comprised of a dielectric material with a defined thickness “t” in the range of 30 nm to 300 nm. Each resonator has a radius “r” in the range of 30 nm to 300 nm and a gap “g” between adjacent resonators in the range of 5 nm to 200 nm. The first plurality of resonators in the first zone have a first radius within a first radius range that is different from a second radius range of the second plurality of resonators in the second zone.

Abstract: Techniques and mechanisms for determining a direction of gaze by a user of an ophthalmic device. In an embodiment, at least a portion of a magnetic field is generated by one of the ophthalmic device and an auxiliary reference device while the ophthalmic device is disposed in or on an eye of the user, and while the auxiliary reference device is adhered on the user's skin or under a surface of the skin. The ophthalmic device and the auxiliary reference device interact with each other via a magnetic field, and the interaction is detected with one or more sensors of the ophthalmic device. In another embodiment, the ophthalmic device stores predetermined reference information which corresponds various magnetic field signal characteristics each with a different respective direction of gaze. Based on the sensor information and the reference information, a controller of the ophthalmic device determines a direction in which the eye of the user is gazing.

Abstract: A contact lens product includes a contact lens and a buffer solution. The contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.