Abstract: In a lens holder driving device, each of an upper plate spring and a lower plate spring, which are respectively provided on an upper side and a lower side of a lens holder, has an inner peripheral side end fixed to the lens holder, an outer peripheral side end fixed to a fixing part, and a plurality of arms. The plurality of arms of the upper plate spring and the plurality of arms of the lower plate spring have substantially identical shapes in a plan view. Each of the plurality of arms includes at least one U-turn shaped portion that is folded over. Either the upper plate spring or the lower plate spring has at least one stretchable and flexible resin that is provided so as to straddle over the mutually opposing parts of the U-turn shaped portion of the plurality of arms.

Abstract: The invention relates to an article (I) that in at least one region (2) consists of a transparent or translucent material, in particular of glass, wherein the article (I) comprises a dynamic moire pattern in the transparent or translucent region (2), and wherein the moire pattern comes about by superimposing at least two, preferably precisely two, laser-engraved grid structures (3), which at least in regions are visually separated from each other. The grid structures (3) are located: in different layers (4) inside the transparent or translucent region (2); or in at least one layer (4) inside and in a coating (5) of at least one surface of the transparent or translucent region (2); or in at least one first layer (4) inside the transparent or translucent region (2) and at least one second virtual layer (6) that is produced by reflecting the first layer (4) at a reflecting surface (7).

Abstract: A lens shade extender is a camera accessory comprising a flat rubber band, a hook-and-loop cinch strap, and one or more opaque plastic shades. The extender quickly and easily attaches to a camera lens hood for blocking extraneous light and glare without blocking the lens angle of view.

Abstract: Disclosed herein is an electrochromic device including an active layer in which a catalyst facilitating oxidation-reduction reaction is homogeneously dispersed. The electrochromic device includes at least one active layer to reversibly exhibit a transparent state upon hydrogenation and a reflective state upon dehydrogenation, wherein the active layer includes a catalyst to facilitate a rate of reversible conversion between the transparent state and the reflective state.

Abstract: There is provided a method of manufacturing a thin polarizing plate including: forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA)-based film to a non-stretched base film, using attractive force therebetween or using an adhesive; stretching the film laminate; attaching a first protective film to the PVA-based film of the stretched film laminate; and separating the PVA-based film having the first protective film attached thereto from the base film.

Abstract: An eyeglass-type wearable device includes a first temple part positioned along one temporal region of a user, a second temple part positioned along the other temporal region of the user, and a front part positioned in front of the face of the user, when the eyeglass-type wearable device is worn by the user. The front part includes an electrical unit including an imaging device, and a first and second connection sections to which the first and the second temple parts can be connected, and at least one of the first and the second temple parts includes a temple-side electrical unit. The first and second temple parts can be attached to and removed from the first and second connection sections of the front part. Information about an image captured by the imaging device included in the front part is transmitted from the front part to the temple-side electrical unit.

Abstract: An iodine-based polarizer includes a polyvinyl alcohol-based film; and iodine adsorbed and oriented in the polyvinyl alcohol-based film, the iodine-based polarizer having be undergone a treatment with a treatment bath containing at least one reducing agent, the iodine-based polarizer containing an oxidized form of the reducing agent, wherein the total content of the reducing agent and the oxidized form is from 0.06×10?6 mol/g to 1.6×10?6 mol/g. The iodine-based polarizer has a sufficiently high level of transmittance, degree of polarization, and other optical properties and can suppress light leakage in short-wavelength.

Abstract: A decorative element (2), in particular in the form of a transfer film, a laminating film or a security thread, as well as a security document with a decorative element and a method for producing same is described. The decorative element (2) has a microstructure (4) which generates an optical effect in incident light and/or with light passing through. In a first area (32), the microstructure (4) has a base surface (40) and several base elements (41) which have in each case an element surface raised or lowered compared with the base surface (40) and a flank arranged between the element surface and the base surface (40). The base surface (40) of the microstructure defines a base plane spanned by coordinate axes x and y. The element surfaces of the base elements (41) in each case run substantially parallel to the base plane.

Abstract: A film element of an EUV-transmitting wavefront correction device is arranged in a beam path and includes a first layer of first layer material having a first complex refractive index n1=(1??1)+iß1, with a first optical layer thickness, which varies locally over the used region in accordance with a first layer thickness profile, and a second layer of second layer material having a second complex refractive index n2=(1??2)+iß2, with a second optical layer thickness, which varies locally over the used region in accordance with a second layer thickness profile. The first and second layer thickness profiles differ. The deviation ?1 of the real part of the first refractive index from 1 is large relative to the absorption coefficient ß1 of the first layer material and the deviation ?2 of the real part of the second refractive index from 1 is small relative to the absorption coefficient ß2 of the second layer material.

Abstract: The present disclosure relates to a slit grating, a method for manufacturing the same and a display device. The slit grating includes an upper substrate, a lower substrate, an electric-controlled dielectric layer and a liquid composite layer arranged between the upper substrate and the lower substrate. The liquid composite layer consists of a light-shielding liquid and a light-transmitting liquid incompatible with each other. The electric-controlled dielectric layer has an electrically-induced light-shielding-liquid-philic or light-shielding-liquid-phobic property.

Abstract: One embodiment may take the form of a system for reducing the appearance of optical effects in a display. The system may include an enclosure with a first surface and a second surface. Furthermore, the system may include spacers that may be deposited on the bottom face of the first surface and/or the top face of the second surface, where the first surface may be a touch panel and/or cover lens and the second surface may be a display module. The spacers may be deposited in one layer with an anti-reflection coating. The thickness of the coating may be less than the diameter of the spacers.

Abstract: There is provided an optical system including: a first lens having negative refractive power and having a meniscus shape of which an object-side surface is convex; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power and having a meniscus shape of which an image-side surface is convex; and a fifth lens having negative refractive power and having a meniscus shape of which an object-side surface is convex, wherein the first to fifth lens are sequentially disposed from an object side, whereby an aberration improvement effect, a wide field of view and a high degree of resolution may be realized.

Abstract: An anti-glare film and a method of fabricating the same. The anti-glare film includes a transparent substrate, a photocurable resin layer stacked on one surface of the transparent substrate, and a plurality of amorphous patterns formed on a surface of the photocurable resin layer. The anti-glare film can provide excellent diffusion of light, exhibit excellent brightness without deterioration of transmittance, and provide excellent front brightness and visibility when applied to polarizing plates and display devices.

Abstract: An imaging lens consisting essentially of six lenses, composed of, in order from the object side, a first lens having a positive refractive power with a convex surface on the object side, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power with a concave surface on the image side, and a sixth lens having a negative refractive power, in which predetermined conditional expressions are satisfied.

Abstract: A vehicle repair hand tool has a handle, a connecting rod, a connecting unit and a working unit. The connecting rod is connected with the handle. The connecting unit is connected with the connecting rod and has an engagement hole. The working unit is connected with the connector and has a base, an engagement unit and a working body. The base has a sliding recess and a recess opening formed in a bottom of the sliding recess. The engagement unit is mounted in the sliding recess and has a sliding block slidably mounted in the sliding recess. The engagement unit further has an engagement ball mounted in the recess opening, sheltered by the sliding block, and selectively engaged in the engagement hole. The working body is mounted on the base.

Abstract: An optical apparatus includes an image pickup optical system, a base member, a holder holding an optical element, and a moving member including a magnetic member and configured to move in a plane perpendicular to an optical axis. The moving member moves in a predetermined straight line between the optical axis and a center of the magnetic member in a surface perpendicular to a center of the optical element. The base member includes a first restricting portion restricting moving amounts of the moving member in one direction of the predetermined straight line, and a second restricting portion restricting moving amounts of the moving member in other direction of the predetermined straight line. The first restricting portion and the second restricting portion are arranged so that the magnetic member is sandwiched between the first restricting portion and the second restricting portion.

Abstract: An actuator includes: a movable portion that swingably moves around a first axis; a first shaft that extends from the movable portion and swingably supports the movable portion around the first axis; a frame portion that is connected to the first shaft and swingably moves around a second axis that intersects the first axis; a second shaft that extends from the frame portion and swingably supports the frame portion around the second axis; a support portion connected to the second shaft; a coil provided on the frame portion; and a magnet that produces a magnetic field that acts on the coil, wherein the frame portion is so formed that the frame portion surrounds the movable portion, the first shaft, the second shaft, and the support portion in a plan view viewed in a thickness direction of the movable portion.

Abstract: There is provided a facet mirror device comprising a facet element and a support unit, the support unit supporting the facet element. The support unit comprises a first support element and a second support element, the second support element being connected to the facet element to support the facet element. The first support element is connected to the second support element to support the second support element, the first support element being connected to the second support element via at least one flexure unit, the flexure unit comprising at least one flexure.

Abstract: A lens apparatus includes an optical system including multiple lens units, the optical system including: a first lens unit which is disposed closest to an object side in the optical system and is rotatable about a point in a vicinity of an optical axis of the optical system; and at least one lens unit which is movable in a direction including a component in a direction perpendicular to the optical axis. The following conditional expression is satisfied: 1.0<ft/|f1|<2.2, where ft represents a focal length of the optical system at a telephoto end, and f1 represents a focal length of the first lens unit. At least one of rotation of the first lens unit or movement of the at least one lens unit in the direction including the component in the direction perpendicular to the optical axis changes an image formation position in the direction perpendicular to the optical axis.

Abstract: An endoscope objective optical system comprises: a front group having a negative refractive power, a brightness diaphragm, and a back group having a positive refractive power in order from an object side, wherein the front group is composed of a first group, which is a first lens which is a single lens and a second group, which is a single lens or a cemented lens having a negative refractive power; 1<Iw/ft<1.8 0.6<Ia/Iw<0.95 |DL1/RL1a|<0.4 ?3<fL1/ft<?1 where Iw is a maximum image height in underwater observation, ft is a focal distance of an entire objective optical system in observation in the air, Ia is a maximum image height capable of transmitting a principal ray in the observation in the air, and DL1, RL1a, and fL1 are an outer diameter, a radius of curvature of an object side surface, and a focal distance, respectively of the first lens.