Abstract: An optical scanner includes: a movable plate which includes a light reflection unit; a first torsion bar spring which oscillatably supports the movable plate around a first axis; a displacement portion which is connected to the first torsion bar spring; a second torsion bar spring which oscillatably supports the displacement portion around a second axis intersecting with the first axis; a permanent magnet which is provided on the displacement portion to be inclined with respect to the first axis and the second axis; and a coil which is provided to be separated from the displacement portion and generates a magnetic field acting on the permanent magnet. The displacement portion includes a frame surrounding the movable plate, and a damper which has a smaller thickness than that of the frame and extends in a direction intersecting with a direction in which the second torsion bar spring extends from the frame.

Abstract: An optical scanner includes: a movable plate which includes a light reflection unit which reflects light; a first torsion bar spring which oscillatably supports the movable plate around a first axis; a displacement member which is connected to the first torsion bar spring; a second torsion bar spring which oscillatably supports the displacement member around a second axis intersecting with the first axis; a coil provided on the displacement member; and a magnet which is provided spaced apart from the displacement member, and generates a magnetic field to be inclined with respect to the first axis and the second axis and to act on the coil, wherein the displacement member includes a frame surrounding the movable plate, and a damper which has a smaller thickness than that of the frame and extends in a direction intersecting with a direction in which the second torsion bar spring extends from the frame.

Abstract: A housing of an optical scanning device includes a first abutting portion and a second abutting portion. In the optical scanning device, an optical axis adjustment and a focal position adjustment in a main scanning direction and a sub scanning direction are conducted in a state where a part of a holder that holds a light source unit for emitting multi-beam light abuts on the first abutting portion and in a state where a part of a peripheral edge of an optical element that has both a collimator lens function and a cylindrical lens function abuts on the second abutting portion. Furthermore, a beam pitch of the multi-beam light is adjusted by rotating the holder around an optical axis in a state where the holder abuts on the first abutting portion.

Abstract: An illumination distribution system for distributing high power illumination to a set of projectors. The system includes a display element, such as a spatial light modulator (SLM), receiving light from a laser. The system includes a fiber optic array with connection locations for optical fibers. The system includes projectors that are each coupled to the fiber optic array at one or more of the connection locations with at least one optical fiber. The system includes a controller operating the display element at a first time to display a first hologram and at a second time to display a second hologram differing from the first hologram such that the laser light is split, with equal or unequal splitting ratios, into beams that are selectively directed to the connection locations of the fiber optic array (e.g., based on a 2D routing pattern used to generate the holograms).

Abstract: A structure for broadband light funneling comprises a two-dimensional periodic array of connected ultrasubwavelength apertures, each aperture comprising a large sub-aperture that aids in the coupling of the incoming incident light and a small sub-aperture that funnels a significant fraction of the incident light power. The structure possesses all the capabilities of prior extraordinary optical transmission platforms, yet operates nonresonantly on a distinctly different mechanism. The structure demonstrates efficient ultrabroadband funneling of optical power confined in an area as small as ˜(?/500)2, where optical fields are enhanced, thus exhibiting functional possibilities beyond resonant platforms.

Abstract: Provided are a complex spatial light modulator and a three-dimensional (3D) image display apparatus. The complex spatial light modulator includes a spatial light modulator configured to modulate a phase of light, a first prism array which is disposed after the spatial light modulator along a path of the light, and including prism units each having a first prism surface and a second prism surface, and a hologram optical device configured to diffract the light that has passed through the first prism array independently from a polarization of the light, where the first prism array and the hologram optical device are configured to modulate the phase and an amplitude of the light.

Abstract: An apparatus for generating and displaying a projected digital image includes an actuator, a holographic encoded medium with a holographic pattern, a light source, and a controller. The holographic encoded medium is disposed in operable communication with the actuator. The light source is configured to produce a coherent light disposed in optical communication with the holographic encoded medium. The controller is operable to control synchronization of the coherent light from the light source with a position of the holographic encoded medium as driven by the actuator to produce the projected digital image on a projection surface based on directing the coherent light to different portions of the holographic pattern at different times.

Abstract: Provided are an optical switch and an optical logic device. The optical switch includes a plate having a nanometer-sized thickness, a first slit formed in the plate, through which a first light passes, a second slit formed in the plate, separately from the first slit, through which a second light selectively passes, a plurality of first grooves formed on a first side of the first slit, between the first slit and the second slit, and a plurality of second grooves formed on a second side of the first slit, opposite the first side. The first light and the second light may have a phase difference and a focusing of the first light is turned on/off by controlling the second light.

Abstract: To provide an inorganic polarizing plate which, when used in structures having different used wavelength bands, can reduce reflectance by using a common structure, making it possible to achieve a predetermined light extinction ratio. The inorganic polarizing plate has a substrate that is transparent to light in a used bandwidth, a reflective layer that is composed of grids that are formed on one surface of the substrate with a pitch that is smaller than a wavelength of light in the used bandwidth, a dielectric layer that is stacked on the reflective layer, and an absorbing layer containing FeSi fine particles.

Abstract: The MEMS device has a suspended mass supported via a pair of articulation arms by a supporting region. An electrostatic driving system, coupled to the articulation arms, has mobile electrodes and fixed electrodes that are coupled to each other. The electrostatic driving system is formed by two pairs of actuation assemblies, arranged on opposite sides of a respective articulation arm and connected to the articulation arm through connection elements. Each actuation assembly extends laterally to the suspended mass and has an auxiliary arm carrying a respective plurality of mobile electrodes. Each auxiliary arm is parallel to the articulation arms. The connection elements may be rigid or formed by linkages.

Abstract: A shutter assembly comprises a plurality of shutter blades movable between an open position and a closed position, and a plurality of drive mechanisms arranged circumferentially about the plurality of shutter blades for moving the plurality of shutter blades, wherein each of said drive mechanisms is stable in at least a first position and a second position.

Abstract: A micro optical switch device, an image display apparatus including the same, and a method of manufacturing the micro optical switch device are provided. The micro optical switch device includes a substrate; a first electrode disposed on the substrate and having a plurality of openings; a second electrode disposed above and spaced apart from the first electrode, and having a plurality of openings; and support units disposed on the substrate and configured to support the second electrode, wherein the support units include deformation preventing portions protruding beyond a top surface of the second electrode.

Abstract: A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO2. An embodiment of the invention covers a glass made according to the method.

Abstract: A holographic object processing apparatus and method are provided. The holographic object processing apparatus may include a display device to output a holographic object, a database (DB) to store change information of the holographic object according to a distance between a control object and the holographic object, a distance measurement sensor to measure the distance between the control object and the holographic object, and a processing unit to extract change information corresponding to the measured distance from the DB and change the holographic object based on the extracted change information. The display device may output the changed holographic object.

Abstract: A retroreflective article and method is provided. The retroreflective article includes a first transparent layer having a back surface with retroreflective prisms, and a planar front surface that has an index of refraction n1. A second transparent layer having an index of refraction n2 is less than n1 overlies the back surface of the first layer. The second layer includes an array of uniform nanostructures of transparent material that define pores having a width that is less than one half of the wavelength of visible light. The nanostructures may be an array of parallel, same-sized nanorods that are obliquely oriented with respect to the first transparent layer, or a grid-like or parallel array of tapered nano-ridges of uniform size that define tapered pores or tapered grooves. The second layer preferably has a porosity greater than 60% so that the resulting index of refraction n1 is no larger than about 1.20.

Abstract: A light-guiding device that converts an input beam bundle made of a plurality of laser beams that have respectively been emitted from a plurality of LD elements, to an output beam bundle made of a plurality of output beams, includes a plurality of double mirrors each corresponding to a corresponding one of the LD elements LDi, the double mirrors being separated from one another. The double mirrors Mi each are made of a first mirror Mi1 that is mounted on a top surface of a base plate B and a second mirror Mi2 that is mounted on a top surface the first mirror Mi1. The first mirror has a first reflective surface whose normal makes an angle of 45° with a normal of the top surface of the base plate. The second mirror has a second reflective surface whose normal makes an angle of 135° with the normal of the top surface of the base plate.

Abstract: A light microscope having a specimen plane, in which a specimen to be examined is positioned, having a light source to emit illuminating light, having optical imaging means to convey the illuminating light into the specimen plane, having a first scanning means, with which an optical path of the illuminating light and the specimen can be moved relative to each other to produce an illumination scanning movement of the illuminating light relative to the specimen, having a detector means to detect specimen light coming from the specimen and having electronic means to produce an image of the specimen based on the specimen light detected by the detector means at different specimen regions. A second scanning means is present, with which it can be adjusted which specimen region can be imaged on a determined detector element.

Abstract: The present invention provides an antiglare film having an excellent antiglare property and being capable of suitably preventing an occurrence of scintillation and a decrease in contrast. The antiglare film includes a light-transmitting substrate and a diffusion layer. The diffusion layer has a surface roughness and is formed on at least one side of the light-transmitting substrate, wherein the diffusion layer contains organic fine particles (A), organic fine particles (B), and a cured product of a binder component, and satisfies the expressions: (1) ?A<?B; (2) RA>RB; and (3) CA/RA3<CB/RB3, where CA and CB represent a content of the organic fine particles (A) or the organic fine particles (B) in the diffusion layer, respectively, RA and RB represent an average particle size thereof, respectively, and ?A and ?B represent a refractive index thereof relative to the cured product of the binder component, respectively.

Abstract: A solar reflector plate maintains an excellent reflectance of a reflective layer and has excellent sand resistance and weather resistance. The solar reflector plate includes a substrate; a reflective layer provided onto the substrate; and a protective layer provided onto the reflective layer, wherein the protective layer contains silicon in an amount of 10% by mass to 60% by mass in terms of SiO2 and an organic substance, and has 1.5 to 3.2 oxygen atoms on average that form a chemical bond with silicon.

Abstract: A motor driver circuit for a Micro-electro-mechanical systems (MEMS) micro-mirror device, the motor driver circuit comprising: a non-inverting buffer circuit; an inverting buffer circuit; and a scalar circuit, the scalar circuit comprising a Supply Tracked Common Mode Voltage (VCMSC) generation circuit, wherein the non-inverting buffer circuit, the inverting buffer circuit, and the scalar circuit are configured, together with the VCMSC generation circuit, to provide a common mode voltage to a motor in response to a VCMSC voltage generated by the VCMSC generation circuit, and wherein the VCMSC voltage is generated by the VCMSC generation circuit in response to a control supply voltage and a driver supply voltage provided to the VCMSC generation circuit.