Abstract: One embodiment of the invention provides a pattern generation device includes a light source, a first HPDLC cell, and a second HPDLC cell. The first HPDLC cell is disposed downstream of a light path of the light source and contains a first phase modulation pattern. The second HPDLC cell is disposed downstream of the light path of the first HPDLC cell and contains a diffraction grating pattern.

Abstract: A dielectrophoretic display is shifted from a low frequency closed state to a high frequency open state via at least one, and preferably several, intermediate frequency states; the use of such multiple frequency steps reduces flicker during the transition. A second type of dielectrophoretic display has a light-transmissive electrode through which the dielectrophoretic medium can be viewed and a conductor connected to the light-transmissive electrode at several points to reduce voltage variations within the light-transmissive electrode.

Abstract: An optical system includes: a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and comprising an image-side surface which is convex in a paraxial region; a fourth lens having refractive power; a fifth lens having refractive power and comprising an image-side surface which is concave in the paraxial region; a sixth lens having refractive power; and a stop disposed in front of an object-side surface of the first lens. The first to sixth lenses are sequentially disposed from an object side. A radius of the stop SD and an overall focal length of the optical system f satisfy: 0.2<SD/f<0.6. An aberration improvement effect and high degrees of resolution and brightness may be obtained.

Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens are arranged in order from an object side to an image side along an optical axis. The first lens has positive refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens has negative refractive power. The third lens has positive refractive power and includes a convex surface facing the object side. The fourth lens has positive refractive power. The fifth lens has negative refractive power and includes a concave surface facing the image side. The lens assembly satisfies 5<(R11+R12)/(R21+R22)<15.

Abstract: A driver for an electrically dynamic structure may store and release energy during polarity cycling to improve the energy efficiency of operation. In some examples, the driver includes an energy storage element. In operation, the driver can charge an electrically controllable optically active material to a first operating voltage at a first polarity and subsequently discharge the optically active material during polarity reversal. The driver may store energy released from the optically active material during discharging and subsequently release the energy to charge the optically active material to a second operating voltage at a second polarity different than the first polarity.

Abstract: A switch member is provided. The switch member includes a mounting board, a moveable plate, a first blade and a second blade. The mounting board includes a mounting board opening. The moveable plate is slidably connected to the mounting board, wherein the moveable plate includes a moveable plate opening, and the moveable plate further includes a first moveable plate abutting portion and a second moveable plate abutting portion. The first blade includes a first blade pivoting portion, a first blade abutting portion and a first blade covering portion, wherein the first blade pivoting portion is located between the first blade abutting portion and the first blade covering portion. The second blade includes a second blade pivoting portion, a second blade abutting portion and a second blade covering portion, wherein the second blade abutting portion is located between the second blade pivoting portion and the second blade covering portion.

Abstract: An electrochromic element is provided that includes a first substrate and a second substrate that are arranged to oppose each other, a first transparent electrode that is formed on a surface of the first substrate facing the second substrate, a second transparent electrode that is formed on a surface of the second substrate facing the first substrate, and a coloration layer that is arranged between the first transparent electrode and the second transparent electrode. The coloration layer includes an electrochromic material and an electrolyte, and a pattern or a concentration gradient of the electrochromic material is formed in at least a part of the coloration layer.

Abstract: There is provided a contact lens having a convex front surface and a concave rear surface, the front surface being divided into an optical portion, an edge joining the front and rear surfaces, a first smoothing portion arranged on an outer periphery of the optical portion, a peripheral portion arranged on an outer periphery of the first smoothing portion, and a second smoothing portion connecting the peripheral portion and the edge, the front surface having mirror image symmetry with respect to a vertical meridian as a boundary extending from an upper end of the lens to a lower end of the lens passing through a midpoint of the lens, and having mirror image symmetry also with respect to the horizontal meridian perpendicular to the vertical meridian at the lens midpoint, the peripheral portion being arranged to include the horizontal meridian, and configured of: a first peripheral portion arranged to include the horizontal meridian and having a shape so as to maximize a thickness of the contact lens on the hori

Abstract: Aspects of the present invention relate to methods and systems for the see-through computer display systems. In embodiments, the systems and methods use curved display panels to generate image light.

Abstract: The present disclosure is directed generally to a lens that provides a stop signal to a myopic eye, over a substantial portion of the spectacle lens that the viewer is using. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a micro lenslet array. The present disclosure is also directed to devices, methods and/or systems of modifying incoming light through spectacle lenses that utilizes chromatic cues to decelerate the rate of myopia progression. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a refractive optical element and/or diffractive optical element that offer conflicting or contradictory optical signals at a wavelength between 510 nm and 610 nm.

Abstract: An optical device (40) includes an electro-optical layer (46), having an effective local index of refraction at any given location within an active area of the electro-optical layer that is determined by a voltage waveform applied across the electro-optical layer at the location. Conductive electrodes (50, 52) are disposed over opposing first and second side of the electro-optical layer. Control circuitry (26) is configured to apply control voltage waveforms between the conductive electrodes so as to generate a phase modulation profile in the electro-optical layer that causes rays of optical radiation that are incident on the device to converge or diverge with a given focal power, while varying an amplitude of the control voltage waveforms for the given focal power responsively to an angle of incidence of the rays that impinge on the device from a direction of interest.

Abstract: An electrochromic device is structured to restrict moisture permeation between an electrochromic stack in the device and an external environment. The electrochromic device includes conductive layers and one or more encapsulation layers, where the encapsulation layers and conductive layers collectively isolate the electrochromic stack from the ambient environment. The encapsulation layers resist moisture permeation, and at least the outer portions of the conductive layers resist moisture permeation. The moisture-resistant electrochromic device can be fabricated based at least in part upon selective removal of one or more outer portions of at least the EC stack, so that at least the encapsulation layer extends over one or more edge portions of the EC stack to isolate the edge portions of the EC stack from the ambient environment. The encapsulation layer can include one or more of an anti-reflective layer, infrared cut-off filter, etc.

Abstract: Digital eyewear for monitoring, detecting, and predicting, preventing, treating, and training patients to conduct self-care, of migraines/photophobia in real-time. Digital eyewear for similar activity, with respect to negative visual effects, such as from changes in lighting conditions. Digital eyewear maintains information about progress of migraines/photophobia for each patient individually and collectively. Digital eyewear determines whether migraines/photophobia are likely or occurring. Digital eyewear ameliorates and treats migraines/photophobia. Digital eyewear trains the patient to self-care re migraines/photophobia. Digital eyewear receives information from patient and ambient sensors, maintains history of migraines/photophobia and amelioration/treatment, and determines correlations. Patient sensors receive information about patient status. Ambient sensors receive information about ambient environment near the patient.

Abstract: An electrochromic element includes: a first electrode which transmits light; a second electrode disposed opposite the first electrode; and an electrolyte containing metal and located between the first electrode and the second electrode. The metal is depositable on one of the first electrode and the second electrode, according to a voltage applied between the first electrode and the second electrode, and a second deposition voltage at which deposition of the metal on the second electrode starts is higher than a first deposition voltage at which deposition of the metal on the first electrode starts.

Abstract: Various embodiments herein relate to electrochromic devices and electrochromic device precursors, as well as methods and apparatus for fabricating such electrochromic devices and electrochromic device precursors. In certain embodiments, the electrochromic device or precursor may include one or more particular materials such as a particular electrochromic material and/or a particular counter electrode material. In various implementations, the electrochromic material includes tungsten titanium molybdenum oxide. In these or other implementation, the counter electrode material may include nickel tungsten oxide, nickel tungsten tantalum oxide, nickel tungsten niobium oxide, nickel tungsten tin oxide, or another material.

Abstract: An electrochromic device comprises a first transparent substrate and a first electrically conductive layer arranged on a surface of the first transparent substrate, wherein the first electrically conductive layer is patterned with curved scribed line segments. The curved scribed line segments comprise a longitudinal direction and a transverse direction, and the distance from each curved scribed line segment to a line along the longitudinal direction of each curved scribed line segment varies nonmonotonically as a function of position along the curved scribed line segment.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the first to seventh lenses are spaced apart from each other along the optical axis, and the optical imaging system satisfies 0.4<L1TR/L7TR<1.9, where L1TR is an overall outer diameter of the first lens, L7TR is an overall outer diameter of the seventh lens, and L1TR and L7TR are expressed in a same unit of measurement.

Abstract: Provided is a converter lens arranged between an interchangeable lens and an image pickup apparatus, wherein a distance from a most-object-side lens surface vertex to an object point of the converter lens, a distance L from the most-object-side lens surface vertex to a most-image-side lens surface vertex, and a most-image-side distance from the lens surface vertex to an image point of the converter lens are properly set, wherein, at least one negative lens included in a rear lens unit composed of lenses satisfying LN>0.5×L where LN is a most-object-side distance from the lens surface vertex to a surface vertex on the object side of the lenses, satisfies ?gF>?0.00162×vd+0.654, where ?gF is relative partial dispersion and vd is Abbe number in d-line, and an average focal length of the at least one negative lens, and a focal length of an entire system of the converter lens are properly set.

Abstract: An optical element includes an electro-optic crystal having an isotropic crystal which belongs to a point group m3m of a cubic system and including an input surface to which input light is input and a rear surface which is a surface on the opposite side of the input surface; a first electrode disposed on the input surface; and a second electrode disposed on the rear surface. The input surface is located along at least one axis between axes obtained by rotating two crystal axes about one remaining crystal axis used as a rotation center at a predetermined angle in three crystal axes of the electro-optic crystal. A direction of an electric field to be induced by a voltage applied to a part between the first electrode and the second electrode is set in a propagation direction of the input light.

Abstract: Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue.