Abstract: There is provided a head-mounted display which allows the lengths of fastening bands to be adjusted easily and can be mounted on the head of the user with increased stability. The head-mounted display has a first fastening band and a second fastening band which extend from the front side toward rear side thereof, for being fastened to the head of the user. At least a portion of the first fastening band is made of an elastically expandable material. The second fastening band is made of a material which is less expandable than the material of the first fastening band and includes a mechanism for adjusting the length thereof.

Abstract: Provided are a light source apparatus and an inspection apparatus that can stably output a wavelength converted light beam. A light source apparatus includes a laser light source that generates a first fundamental light beam, at least one nonlinear optical crystal that generates a wavelength converted light beam using the fundamental light beam or a harmonic laser beam of the fundamental light beam as an incident light beam, a detector that detects the wavelength converted light beam, an acousto-optic modulator that is disposed in an optical path of the incident light beam in such a way that a zero-order light beam enters the nonlinear optical crystal, and a controller that controls an output intensity of the wavelength converted light beam according to a detection signal from the detector.

Abstract: Dynamically-variable graphic displays, including a panel comprised of a plurality of electrostatic particles and a plurality of electrodynamic contacts supported within a nonconductive substrate, wherein each electrostatic particle is situated within a channel in the nonconductive substrate such that the nonconductive substrate comprises a plurality of channels oriented in one direction. Also included within the invention are dynamically-variable graphic display panels comprising electrostatic particles that each comprise a plurality of sectors, each having a different color and a fixed magnetic polarity relative to said sectors, and a plurality of electrodynamic contacts, each contact located adjacent to an electrostatic particle and positioned for interaction with one of the electrostatic particles.

Abstract: This invention enables obtainment of a reflectance variable element having a high cold tolerance. Two transparent substrates are disposed so as to face each other across a gap. On respective surfaces of the transparent substrates, the surfaces facing each other, respective transparent conductive films are formed. An electrolytic solution is charged in the gap. The electrolytic solution has a composition in which at least silver ions and copper ions, a content by weight of the copper ions being smaller than that of the silver ions, are contained in a non-aqueous solvent containing a non-aqueous solvent having a boiling point that is higher than that of methanol and methanol, a content by weight of the methanol being smaller than that of the non-aqueous solvent.

Abstract: A photochromic optical article is provided, which includes: an optical substrate; a photochromic layer over a surface of the optical substrate, wherein the photochromic layer includes a photochromic compound; and a protective layer over the photochromic layer, wherein the protective layer includes a matrix that includes residues of an ethylenically unsaturated radically polymerizable material that includes at least one allophanate group. A method of forming the photochromic optical article is also provided.

Abstract: Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith.

Abstract: An optical sensor includes an array of pixels configured to convert photons into electrons for forming an image. A tunable filter assembly is optically connected to the array of pixels for passing an adjustable bandwidth of photons to the array of pixels. The tunable filter assembly includes a first mirror defining an optical axis and a second mirror spaced apart from the first mirror along the optical axis. A first electrode is mechanically connected to the first mirror and a second electrode is fixed relative to the second mirror. The first and second electrodes are positioned relative to one another to adjust the position of the first mirror with respect to the second mirror when a voltage is applied across the first and second electrodes to tune the spectral bands being passed through the filter assembly to the array of pixels.

Abstract: To provide a self-dimming system including: a main body section which is configured by a pair of transparent substrates arranged to face each other and to be separated from each other, and a frame body holding the pair of transparent substrates and forming a gap together with the pair of transparent substrates; a dimming section which is arranged in the gap and provided with a dimming element whose optical properties are reversibly changed by hydrogenation and dehydrogenation of the dimming element; a power-generating equipment which is arranged in the main body section; a hydrogen suction and discharge section which, when receiving electric power generated in the power-generating equipment, generates hydrogen by performing electrolysis and supplies the hydrogen to the gap and which, when not receiving electric power generated in the power-generating equipment, generates electric power by using the hydrogen in the gap; and control means which controls whether or not electric power generated in the power-gener

Abstract: An electrochromic apparatus includes an electrochromic element comprising a pair of electrodes and an electrochromic layer disposed between the pair of electrodes; and drive circuits connected to the electrochromic element, the drive circuits including a drive circuit A and a drive circuit B, in which, when no voltage is applied in a pulse width modulation (PWM) drive of the drive circuit A, a resistance value of the drive circuit A is larger than a resistance value of the electrochromic element, and in which when no voltage is applied in a PWM drive of the drive circuit B, the pair of electrodes is short-circuited.

Abstract: A linear ultrasonic motor includes a vibrator having a piezoelectric element, a movable part applying a pressing force to the vibrator and bringing the vibrator into pressed contact with a base part, a cover part being fixed to the base part, a rolling part being rollably held between a movable guide part of the movable part and a cover guide part of the cover part, and a body to be driven having a transmission member that is pivotably supported and able to move only in the movable direction. The transmission member includes a bias part that abuts on a transmission part of the movable part and applies a biasing force of biasing the movable part to the rolling part to the transmission part. The rolling part is held by a resultant force of the pressing force or a reaction force of the pressing force, and the biasing force.

Abstract: A transmissive optical shutter includes a first contact layer provided on a substrate; a plurality of stacks provided on the first contact layer, each stack of the plurality of stacks including a first reflective layer, an active layer, a second reflective layer, and a second contact layer sequentially provided on the first contact layer; a first electrode provided on the first contact layer; and a plurality of second electrodes respectively provided on corresponding second contact layers of the second contact layers of the plurality of stacks, each second electrode of the plurality of second electrodes being comb-shaped.

Abstract: Disclosed are a transparent optical shutter which may be manufactured at the wafer level, and a method of manufacturing a transparent optical shutter at the wafer level. In the disclosed optical shutter, a polymer-based material is used as a transparent protective layer for ensuring the mechanical or chemical stability of the optical shutter, and thus, the shutter may be manufactured at the wafer level in large quantities. Also, a layer which is optically transparent and has excellent heat conductivity is disposed under the transparent protective layer.

Abstract: A graphene device and a method of operating the same are provided. The graphene device includes: an active layer including a plurality of meta atoms spaced apart from each other, each of the meta atoms having a radial shape, and a graphene layer that contacts each of the plurality of meta atoms; and a dielectric layer covering the active layer.

Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a cylindrical bobbin for accommodating a lens and protruded at a bottom end with a boss, and a coil block arranged at a periphery of the bobbin; a stator including a magnet facing the coil block and a yoke fixing the magnet; and an elastic member including a first elastic member formed with a through hole coupled to the boss of the bobbin and a second elastic member coupled to an upper end facing the bottom end of the bobbin; wherein the boss is formed with a disengagement prevention unit preventing the first elastic member from being disengaged from the boss, and the first elastic member is formed with a coupling unit contacting a joint where the disengagement prevention unit and the coupling unit meet.

Abstract: An optical modulation device includes a plasmonic nano-antenna layer, a metal layer that faces the plasmonic nano-antenna layer, and a permittivity variation layer and a dielectric material layer between the plasmonic nano-antenna layer and the metal layer. An active area formed in the permittivity variation layer according to an external signal may function as a gate that controls optical modulation performance.

Abstract: A touch sensing mirror structure including a first transparent substrate, a second transparent substrate, a package material, an electrochromic material, a light reflecting electrode layer, and a transparent electrode layer is provided. The second transparent substrate is located above the first transparent substrate. The package material is bonded between the first transparent substrate and the second transparent substrate to define a chamber between the first transparent substrate and the second transparent substrate. The chamber is filled with the electrochromic material. The light reflecting electrode layer is disposed on the first transparent substrate and contacts the electrochromic material. The transparent electrode layer is disposed on the second transparent substrate and contacts the electrochromic material.

Abstract: A VCM (voice coil motor) is disclosed, the VCM comprising: a bobbin formed with a support unit protruded from a periphery of a body at a bottom portion of the body, and a recess unit partially removed at the support unit; and a coil block supported by the support unit and including a plurality of coil layers wound at a periphery of the bobbin, wherein first and second distal ends of the coil block pass through the recess unit.

Abstract: imagelight and outside light are viewed to overlap in a half mirror layer which is a semi-transmissive reflection unit from a state in which a polarization property of the outside light is canceled by a depolarization member disposed more outside than a light-guiding region of the imagelight.

Abstract: An electro-optic assembly is provided that includes a first substantially transparent substrate comprising: a first surface, and a second surface. The second surface comprises a first electrically conductive layer and a first isolation area. The assembly further includes a second substrate comprising: a third surface, and a fourth surface. The third surface comprises a second electrically conductive layer. The assembly also includes a primary seal between the second and third surfaces, the seal and the second and third surfaces define a substantially hermetic cavity; and an electro-optic medium at least partially disposed in the cavity. The primary seal comprises a plurality of conductive spacers, the seal disposed in contact with portions of the first and second electrically conductive layers. A substantial portion of the plurality of conductive spacers is in substantial contact with the second and third surfaces.

Abstract: Provided herein are an optical zoom lens capable of actively zooming in and/or out and an apparatus using the same. The optical zoom lens may include an electro-active polymer layer configured to be deformable in response to an electric signal; a lens structure formed over the electro-active polymer layer; a first electrode formed on an upper surface of the electro-active polymer layer; a second electrode formed on a lower surface of the electro-active polymer layer; and a control circuit unit configured to apply a voltage to the first electrode and the second electrode. The optical zoom lens, having a structure of a combination of the polymer lens structure and the electro-active polymer actuator, is able to embody active variation in position of the polymer lens structure body and control therefor using deformation of the electro-active polymer layer by an electric signal.