Abstract: A system for generating laser sustained broadband light includes a pump source configured to generate a pumping beam, a gas containment structure for containing a gas and a multi-pass optical assembly. The multi-pass optical assembly includes one or more optical elements configured to perform a plurality of passes of the pumping beam through a portion of the gas to sustain a broadband-light-emitting plasma. The one or more optical elements are arranged to collect an unabsorbed portion of the pumping beam transmitted through the plasma and direct the collected unabsorbed portion of the pumping beam back into the portion of the gas.

Abstract: Solid state lighting devices are configured to provide aggregate emissions that include emissions from solid state light emitters and emissions that are received by preferential reflector structures. Preferential reflectors have non-uniform spectral reflectivities that preferentially reflect certain wavelengths of emissions that are received from solid state light emitters. Solid state lighting devices include solid state light emitters of different correlated color temperature (CCT) values and one or more preferential reflectors configured to shift CCT values of aggregate emissions of such solid state lighting devices, such as to provide tunable aggregate emissions between multiple CCT values along or near a black body locus.

Abstract: A system for increasing the temperature of a display element includes a heat source configured to perform a user experience function independent of generating heat. The system also includes a thermally conductive element that is coupled to the heat source and is positioned proximate to the display element, forming a thermally conductive path between the heat source and the display element. A method for increasing the temperature of a display element includes generating heat by operating a heat source to perform a user experience function independent of generating heat, and dispersing the heat from the heat source to the display element via a thermally conductive path formed by a thermally conductive element coupled to the heat source and positioned proximate to the display element.

Abstract: This invention relates to an ophthalmic lens comprising an optical article comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with an antireflective coating, characterized in that the number of layers of said antireflective coating is higher than or equal to 5, and the antireflective coating comprises: —at least one layer having a low refractive index which is <1.6, defined as “LI layer”, —at least one layer having a very high refractive index which is ?2.2, defined as “VHI layer” and —at least one layer having a high refractive index which is ?1.6 and <2.2, defined as “HI layer”, the HI layer being the layer which is the nearest from said substrate amongst said LI, HI and VHI layers, and such that the mean reflection factor in the near infrared (NIR) region RmNIR of said antireflective coating is higher than or equal to 40% at an angle of incidence lower than 35°.

Abstract: The present invention discloses a composite thermal insulator including a first transparent substrate layer, a second transparent substrate layer, and a near-infrared shielding layer positioned between the first transparent substrate layer and the second transparent substrate layer, and the near-infrared shielding layer is formed by dispersively fixing multiple nanoparticles containing tungsten oxide in polyethylene terephthalate. The composite thermal insulator can't change color under sunlight so that it can be used for light output controlling and thermal isolation.

Abstract: Substrates such as transparent glass layers or other transparent substrates may be used to form protective display cover layers, windows, housing structures, camera windows, and other structures. Coatings may be formed on the substrates, on pixel arrays such as flexible organic light-emitting diode pixel arrays, housing structures, and other structures. The coatings may have optical properties arising from the inclusion of pigment flakes in a clear polymer binder. The pigment flakes may be formed from a thin-film interference layer. The thin-film interference filter layer may have a stack of dielectric layers with a pattern of refractive index values selected to adjust the optical properties of the pigment flakes. The stack of dielectric layers may be configured to form an infrared-light-blocking-and-visible-light-transmitting optical characteristic for the coatings and/or may have other desired spectral properties.

Abstract: Zinc oxide compositions and methods for applying anti-reflective coating on oxide particles for sunscreen applications are provided herein. A composition includes multiple zinc oxide particles suspended within a medium forming sunscreen composition, and two or more coating materials applied to each of the multiple zinc oxide particles in distinct layers via a gradation based on refractive index, wherein each of the coating materials has a refractive index that is between the refractive index of air and the refractive index of zinc oxide.

Abstract: A window such as a vehicle window may have an infrared-light-blocking area formed from an infrared-light-blocking layer. The window may also have an infrared-light-transparent area formed from an infrared-light-transparent layer that is not covered by the infrared-light-blocking layer. The infrared-light-transparent layer may have a conductive layer that is transparent to near-infrared light such as a conductive oxide layer or a metal layer. The infrared-light-blocking layer may have one or more layers of infrared-light-reflecting material such a silver layer that is electrically coupled to the conductive layer in the infrared-light-transmitting layer. Ohmic heating current may be passed to the conductive layer in the infrared-light-transmitting layer through the conductive layer in the infrared-light-blocking layer or through elongated metal contacts that run along edges of the infrared-light-transmitting layer.

Abstract: A display device includes a substrate, a pixel electrode, an encapsulation layer, and a light-shielding layer. The pixel electrode is positioned above the substrate. The encapsulation layer is disposed over the pixel electrode. The encapsulation layer includes a first inorganic layer. The first inorganic layer includes a plurality of fine pillar patterns. The pillar patterns are sloped with respect to one surface of the substrate. The light-shielding layer is disposed on the encapsulation layer. The light-shielding layer includes a first opening. The first opening overlaps at least a portion of the pixel electrode.

Abstract: Disclosed is a new class of wideband reflectors that are relatively insensitive to deviations from the design parameters. The reflectors are materially sparse while providing high reflectance across wide spectral bands. In some embodiments, a device comprises a substrate and a grating layer disposed on the substrate, wherein the grating layer comprises a periodic grating structure and a sublayer beneath the grating structure and adjacent to the substrate, the grating layer and the sublayer having the same index of refraction. These compact, low-loss elements complement conventional thin-film reflectors while possessing properties not available in thin-film multilayer stacks. The reflectors are based on a fundamental resonance effect, the guided-mode resonance effect, that occurs in periodic structures. Disclosed herein are both one-dimensional and two-dimensional reflectors m zero-contrast embodiments.

Abstract: An optical element for an optical system that operates with working light in the wavelength spectrum of extreme ultraviolet light or soft X-ray radiation, in particular an optical system for EUV microlithography, that includes an absorber layer (12) for EUV or soft X-ray radiation. The absorber layer extends along an optically effective surface and has a thickness that is defined transversely with respect to the optically effective surface, wherein the thickness of the absorber layer varies over the optically effective surface. Also disclosed is a mirror formed by at least one roughened surface of the mirror, the roughness of which varies over the surface. In addition, an illumination system for an EUV projection exposure apparatus, and a method for producing a corresponding intensity adaptation filter are disclosed.

Abstract: Provided is a pressure-sensitive adhesive (PSA) sheet including a PSA layer formed from a PSA composition including a base polymer, crosslinking agents of two or more species having mutually different types of crosslinkable functional groups, and an azole-based rust inhibitor. Here, one of the crosslinking agents of two or more species is an isocyanate-based crosslinking agent. Monomeric components constituting the base polymer include a carboxy group-containing monomer. The amount of the azole-based rust inhibitor in the PSA layer is less than 8 parts by weight with respect to 100 parts by weight of the base polymer.

Abstract: Provided is a pressure-sensitive adhesive (PSA) sheet having a low relative dielectric constant, satisfactory metal corrosion preventing property, and excellent member holding performance. The present invention provides a PSA sheet having a PSA layer including a base polymer and a rust inhibitor. The base polymer is an acrylic polymer, and monomeric components constituting the acrylic polymer comprise a (meth)acrylate having an alkyl group having 5 or more carbon atoms at an ester end at 50% by weight or more of the monomeric components. The PSA layer has a relative dielectric constant of 3 or less at 300 kHz.

Abstract: An omnidirectional multilayer thin film is provided. The multilayer thin film includes a multilayer stack having a first layer of a first material and a second layer of a second material, the second layer extending across the first layer. The multilayer stack reflects a narrow band of electromagnetic radiation having a full width at half maximum (FWHM) of less than 300 nanometers (nm) and a color/hue shift of less than 30 degrees when the multilayer stack is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45 degrees. In some instances, the multilayer stack has a total thickness of less than 2 microns (?m). Preferably, the multilayer thin film has a total thickness of less than 1.5 ?m and more preferably less than 1.0 ?m.

Abstract: There is provided laminated glass which is high in heat shielding properties. The laminated glass according to the present invention is provided with a first laminated glass member, a second laminated glass member and an interlayer film arranged between the first and second laminated glass members; the interlayer film is provided with an infrared ray reflection layer which reflects infrared rays, a first resin layer which is arranged on a first surface side of the infrared ray reflection layer and contains a thermoplastic resin, and a second resin layer which is arranged on a second surface side of the infrared ray reflection layer and contains a thermoplastic resin; and the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the first laminated glass member and the first resin layer is higher than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the whole layer composed of the first laminated glass member and the second resin layer.

Abstract: The invention relates to an infrared reflecting film comprising a flexible polymer substrate; a heat-mirror stack on the substrate, said heat-mirror stack comprising a first dielectric oxide layer, a second dielectric oxide layer and a silver-containing layer between the first and second dielectric oxide layers; and an optical stack on the heat mirror stack, said optical stack comprising alternating layers of at least one layer of a first type and at least one layer of a second type, wherein each layer of the first type has a refractive index measured at 550 nm of 1.6 or less and each layer of the second type has a refractive index measured at 550 nm of 2.3 or more.

Abstract: A coated article includes a low-emissivity (low-E) coating. The low-E coating includes at least one infrared (IR) reflecting layer of a material such as silver, gold, or the like, and a dielectric overcoat designed to increase solar heat gain coefficient (SHGC) of the coated article. A dielectric undercoat may also be designed to increase SHGC of the coated article in certain example embodiments. In certain example embodiments, the overcoat and/or undercoat are designed to increase SHGC while also providing for desirably high visible transmission (TY or Tvis) and desirably low normal emittance (En).

Abstract: A layered element includes two transparent outer layers having approximately the same refractive index and each having a smooth outer main surface, the layered element including a screen zone with properties of diffuse reflection and specular transmission comprising a textured middle layer interposed between the outer layers, a peripheral zone with properties of specular reflection and specular transmission, and a transition zone with properties of diffuse reflection and specular transmission between the screen zone and the peripheral zone, which includes a textured middle layer interposed between the outer layers. The diffuse light reflection at any point of the transition zone is less than or equal to the diffuse light reflection at any point of the screen zone and the variation of the diffuse light reflection in the transition zone from the screen zone to the peripheral zone, in any direction joining the screen zone to the peripheral zone, is decreasing.

Abstract: Conductive nanoshells are oriented so as to redirect incident radiation as a function of wavelength. Nanoshells can be formed on templates such as nanospheres or gratings and embedded in an elastomeric layer. In some examples, conductive nanoshells are coupled to a layer that is configured to unbuckle and buckle as a function of temperature, so that radiation in one or more wavelength ranges is directed differently at different temperatures. Building windows can include such layers to that infrared radiation is reflected on warm days and directed into a building on cool days. Such layers can also direct incident visible radiation to a room ceiling so as to enhance interior lighting.

Abstract: The present invention provides a semiconductor laser module including: a mirror that comprises a first surface which reflects laser light and which transmits visible light and a second surface which transmits the laser light and which reflects the visible light; and a semiconductor laser element that emits the laser light which is applied to the first surface of the mirror.

Abstract: Multispectral optical interference coatings and methods. In one example, an optical element includes a substrate having a first surface and a second surface disposed opposite the first surface, a first multi-layer dielectric film disposed on the first surface of the substrate and constructed and arranged to transmit light in a first band of wavelengths, a second multi-layer dielectric film disposed on the second surface of the substrate and constructed and arranged to transmit light in a second band of wavelengths, the first and the second bands of wavelengths at least partially overlapping, and a bilayer diamond-like carbon (DLC) coating disposed on the first multi-layer dielectric film, the bilayer DLC coating including a first layer and a second layer, the first layer having a modulus of elasticity of a first value, and the second layer disposed on the first layer and having a modulus of elasticity of a second value that is greater than the first value.

Abstract: Provided are a decorative film including a base film, and a metal-containing layer which contains tabular metal particles on one surface of the base film; and a decorative molded body.

Abstract: A high-chroma omnidirectional structural color multilayer structure is provided. The structure includes a multilayer stack that has a core layer, a dielectric layer extending across the core layer, and an absorber layer extending across the dielectric layer. An interface is present between the dielectric layer and the absorber layer and a near-zero electric field for a first incident electromagnetic wavelength is present at this interface. In addition, a large electric field at a second incident electromagnetic wavelength is present at the interface. As such, the interface allows for high transmission of the first incident electromagnetic wavelength and high absorption of the second incident electromagnetic wavelength such that a narrow band of reflected light is produced by the multilayer stack.

Abstract: A cholesteric resin layered body including a substrate, an intermediate layer, and a cholesteric resin layer in this order, wherein a difference in a reflection band center wavelength of the cholesteric resin layer before and after the layered body is heated at 130° C. for 8 hours is 50 nm or less, method for producing the same, as well as a reflective material, a display medium and a decorating material including the same.

Abstract: A decorative filter is disclosed. Quick, convenient, and festive update to garden lights and outdoor fixtures. The filter has a bag-like structure to facilitate placing it over a landscaping light fixture to change the color of the light that projects from the fixture. The filter is sheet-like and can be a gel or other color filter. Sometimes the filter is made from a polymeric material.

Abstract: This application is directed to a lens assembly configured to focus light on a sensor array of an optical device. The lens assembly comprises one or more optical lenses and an electrochromic layer positioned between the one or more optical lenses and the sensor array. The electrochromic layer has one or more optical properties that are responsive to voltage applied to the layer, including a first optical property related to optical transmissivity. The first optical property includes a first state, responsive to a first applied voltage, in which the layer is substantially opaque to a predefined band of IR wavelengths. The first optical property also includes a second state, responsive to a second applied voltage distinct from the first applied voltage, in which the layer is substantially transparent to the predefined band of IR wavelengths and visible wavelengths.

Abstract: There are provided coated articles that include two or more infrared (IR) reflecting layers (e.g., of or including NbZr, Nb, NiCr, NiCrMo, and/or a nitride thereof) sandwiched between at least dielectric layers, and/or a method of making the same. The coating may be designed so that the coated articles realize green glass side reflective coloration in combination with a low solar factor (SF) and/or a low solar heat gain coefficient (SHGC). Such coated articles may be used in the context of monolithic windows, insulating glass (IG) window units, laminated windows, and/or other suitable applications, and may optionally be heat treated (e.g., thermally tempered) in certain instances.

Abstract: An inventory system methodology is presented including generating a three dimensional computer representation of an environment using a camera of a mobile device, converting the three dimensional computer representation of the environment into a two dimensional electronic map, scanning, with a scanner that is coupled to the mobile device, a radio frequency identification (RFID) tag, which is coupled to an item that is in the environment, determining a location of the RFID tag based on a location of the scanner in the three dimensional computer representation of the environment when the scanning occurred, and indicating the location of the item, based on the location of the RFID tag, on the two dimensional electronic map.

Abstract: Disclosed herein are optical stacks that are stable to light exposure by incorporating one or more UV-blocking layers.

Abstract: The present invention relates to peelproof security films made from a poly(meth)acrylate, more particularly from a polymethyl methacrylate, which comprises at most 10 wt % of or no impact modifiers. These films are highly transparent, have good printability qualities, and can be applied without intended break points. The peelproof security films can therefore find use in particular in documents, such as passports, for example, in security labels, such as road tax badges, for example, or for product theft prevention, or as price tags. These security labels are further distinguished by good weathering stability and in particular by especially good UV stability. The present invention relates more particularly to the use of these security labels, which have a thickness of not more than 2 mm, comprise at least 80 wt % of polymethyl methacrylate and contain no impact modification particles.

Abstract: This invention relates to an optical lenses, which includes a lens substrate, a multi-layers film is set on one side of the lens substrate to block partial blue light and infrared light. The multi-layers film is formed by interactive stacking a plurality of layers of a low refractive index film (such as silicon dioxide film, the mix material film which is composed of silicon dioxide and alumina or the mix material film which is composed of silicon dioxide and silicon oxide) and a high refractive index film (such as zirconium dioxide film, trititanium pentoxide film, titanium dioxide film, tantalum pentoxide film or the mix material which is composed of zirconium dioxide and titanium dioxide), and each layer of film is used a specific thickness. So that, the optical lens can produce the effect of blocking partial blue light and infrared light without overly increased in color, allowing the user's eyes to keep cool due to partial infrared light blocking.

Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.

Abstract: An optical filter whose transmitting characteristics for visible light are favorably maintained and at the same time, whose blocking characteristics for near-infrared light, in particular, with a large incident angle deteriorates less. The optical filter includes an absorption layer and a reflection layer, and satisfies the requirements: in a spectral transmittance curve for a 0° incident angle, an average transmittance for 430 to 620 nm wavelength light is 65% or more, and a wavelength exhibiting a 50% transmittance is in a 600 to 700 nm wavelength; in a 615 to 725 nm wavelength, an average value of absolute values of differences in transmittance between the spectral transmittance curve for the 0° incident angle and 30° incident angle is 8%/nm or less; and in a spectral transmittance curve for a 60° incident angle, the maximum transmittance for 730 to 1000 nm wavelength light is 15% or less.

Abstract: An opaque cover is provided for a capacitive sensor. The cover includes a transparent substrate, and at least one white coating layer including white pigments disposed over at least one portion of the transparent substrate. The cover also includes a non-conductive mirror structure disposed over the at least one white coating layer. The non-conductive mirror structure includes a number of first dielectric layers having a first refractive index interleaved with second dielectric layers having a second refractive index. The first and second dielectric layers have dielectric constants below a threshold.

Abstract: A curved liquid crystal display panel and a curved liquid crystal display device are disclosed. The curved liquid crystal display panel comprises: two substrates curved towards a same direction with liquid crystals filled therebetween to form a curved liquid crystal layer; and a transparent layer covering an outer surface of a glass of at least one of the substrates, a stress-optical coefficient of the glass of the substrate and a stress-optical coefficient of the transparent layer at a same side of the liquid crystal layer have opposite signs, wherein the outer surface of the glass of the substrate is a surface of the glass of the substrate away from the liquid crystals. The curved liquid crystal display device comprises the curved liquid crystal display panel. The optical rotation effects of the glass of the substrate and the transparent layer located at the same side of the liquid crystal layer are opposite from each other, optical delay thereof are counteracted by each other.

Abstract: Disclosed is an optical filter and a method of manufacturing the same, the optical filter including a tempered glass substrate and an optical filter formed on upper and lower surfaces of the tempered glass substrate and the method including: forming a sheet-cutting portion on a base glass substrate on a per-cell basis; tempering the base glass substrate such that upper and lower surfaces of the base glass substrate are tempered and a side portion thereof is tempered through the sheet-cutting portion as well; forming an optical filter layer on each of upper and lower surfaces of the base glass substrate; and dividing the base glass substrate into cells where each cell serves as a cell-based optical filter.

Abstract: The invention provides a glazing sheet and a low-emissivity coating on the glazing sheet. The low-emissivity coating comprises, in sequence moving outwardly from the glazing sheet, a layer comprising oxide film, nitride film, or oxynitride film, an infrared-reflective layer, a nickel-aluminum blocker layer, and an oxide layer. Also provided are methods of depositing such a low-emissivity coating.

Abstract: Certain example embodiments of this invention relate to coated articles having a metamaterial-inclusive layer, coatings having a metamaterial-inclusive layer, and/or methods of making the same. Metamaterial-inclusive coatings may be used, for example, in low-emissivity applications, providing for more true color rendering, low angular color dependence, and/or high light-to-solar gain. The metamaterial material may be a noble metal or other material, and the layer may be made to self-assemble by virtue of surface tensions associated with the noble metal or other material, and the material selected for use as a matrix. An Ag-based metamaterial layer may be provided below a plurality (e.g., 2, 3, or more) continuous and uninterrupted layers comprising Ag in certain example embodiments. In certain example embodiments, barrier layers comprising TiZrOx may be provided between adjacent layers comprising Ag, as a lower-most layer in a low-E coating, and/or as an upper-most layer in a low-E coating.

Abstract: In one embodiment, an apparatus includes a filter operable to block visible light from passing through a transparent structure at a wavelength corresponding to the wavelength used by a visible light communications network operable in an area containing the transparent structure. The filter is operable to provide security in the visible light communications network while allowing at least some visible light to pass through the transparent structure.

Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display without any high haze light diffusing layer or air gap between the reflective polarizer and the back absorbing polarizer of the display. The reflective polarizer has only one packet of microlayers, and is oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The microlayers in the packet have a layer thickness profile suitably tailored to avoid excessive perceived color at normal and oblique angles. A laminate made by combining this type of reflective polarizer with an absorbing polarizer, without an air gap or any high haze light diffusing layer or structure between the polarizers, can be used and incorporated into a liquid crystal display or the like with adequate color performance both at normal incidence and oblique incidence up to a polar angle of 60 degrees.

Abstract: A light deflector includes a first light deflecting member disposed on a transparent substrate and has a refractive index that varies depending on a magnitude of an electric field applied thereto. The light deflector may adjust the refractive index by applying electric fields differently according to regions of the first light deflecting member or time divisions. The light deflector may have a smaller size than a light deflector including an optical device, and may easily adjust the refractive index.

Abstract: A light emitting device includes a light emitting element, a light-transmissive member covering the light emitting element, a fluorescent material contained in the light-transmissive member, and a multilayer film disposed on the light-transmissive member and including alternatively layered two types of films of different refractive indices, in which the two types of films are aggregated nano-particles of TiO2 and aggregated nano-particles of SiO2.

Abstract: An optical filter including a base member having a layer containing near-infrared absorbing fine particles and a dielectric multilayer film, the optical filter satisfying a requirement that, in a wavelength range of 400 nm to 650 nm, an average of transmittance of any of light incident from a direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees, and light obliquely incident at an angle of 60 degrees is 45% or higher and lower than 85%; and a requirement that, in a wavelength range of 800 nm to 1,200 nm, an average of optical density (OD value) of any of light incident from the direction perpendicular to the optical filter, light obliquely incident at an angle of 30 degrees with respect to the perpendicular direction, and light obliquely incident at an angle of 60 degrees with respect to the perpendicular direction is 1.7 or higher.

Abstract: The present invention aims to provide a display device capable of displaying a gradation pattern in which the gradation pattern on a laminated glass can be changed at will and a display state can be switched to a transparent state, and an automobile roof glass and a building window glass each including the display device. Provided is a display device capable of displaying a gradation pattern, including: a laminated glass including a pair of glass plates and an interlayer film for a laminated glass that contains a thermoplastic resin and a luminescent material and is interposed between the pair of glass plates; and a light source configured to emit light of excitation wavelength for the luminescent material, the laminated glass and the light source being disposed such that the laminated glass is irradiated from its periphery toward the inside with the light emitted from the light source.

Abstract: Various embodiments provide an optical lens that includes wafer level diffractive microstructures. In one embodiment, the optical lens includes a substrate, a microstructure layer having a first refractive index, and a protective layer having a second refractive index that is different from the first refractive index. The microstructure layer is formed on the substrate and includes a plurality of diffractive microstructures. The protective layer is formed on the diffractive microstructures. The protective layer provides a cleanable surface and encapsulates the diffractive microstructures to prevent damage and contamination to the diffractive microstructures. In another embodiment, the optical lens includes a substrate and an anti-reflective layer. The anti-reflective layer is formed on the substrate and includes a plurality of diffractive microstructures.

Abstract: A sunlight modulation device includes a light focusing module and a light deflection module. The light focusing module is configured to let incident sunlight pass through and to converge direct sunlight of the incident sunlight. The light deflection module is configured to separate the converged direct sunlight from diffusion sunlight of the incident sunlight by reflecting the converged direct sunlight. The above-mentioned sunlight modulation device allows more diverse configurations for solar panels, heating devices or the like means, as well as illumination purpose.

Abstract: Optical stacks are described. In particular, optical stacks including reflecting-absorbing polarizers and quarter-wave plates are disclosed. The optical core of the optical stack—which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye—may be co-extruded or co-stretched.

Abstract: According to the present invention a spectrometry apparatus includes: an optical filter device in which two or more filters are provided to filter incident light; an optical sensor device in which two or more optical sensors are provided to be capable of corresponding to the two or more filters so as to convert the filtered light into a charge to be outputted; and a digital signal processing unit that performs digital signal processing on an output signal of the optical sensor device to recover spectrum data on the incident light, and having at least one of the two or more filters being a random transmittance filter. According to the present invention, the resolution of the recovered optical signal is improved and recovery accuracy is improved.

Abstract: An optical filter may include a first group of layers. The first group of layers may include alternating layers of a first dielectric material, of a group of dielectric materials, and a second dielectric material of the group of dielectric materials. The optical filter may include a second group of layers. The second group of layers may include alternating layers of a third dielectric material, of the group of dielectric materials, and a fourth dielectric material of the group of dielectric materials. The optical filter may include a third group of layers. The third group of layers may include alternating layers of a fifth dielectric material, of the group of dielectric materials, a sixth dielectric material, of the group of dielectric materials, and a metal material. The third group of layers may be disposed between the first group of layers and the second group of layers.

Abstract: A system and method for diamond based multilayer antireflective coating for optical windows are provided. An antireflective coatings for optical windows may include an optical grade silicon substrate, a first polycrystalline diamond film on the silicon substrate, a germanium film on the first polycrystalline diamond film, a fused silica film on the germanium film; and a second polycrystalline diamond film on the fused silica film. A method of fabricating a diamond based multilayer antireflective coating may include the steps of cleaning and seeding an optical substrate, forming a first diamond layer on the optical substrate, forming a germanium layer on the first diamond layer, forming a fused silica layer on the germanium layer, cleaning and seeding the germanium layer, and forming a second diamond layer on the germanium layer.