| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359589000 | Selective wavelength transmission or reflection | 42 |
| 20080297905 | Optical filter, plasma display device including the optical filter, and method of forming the optical filter - An optical filter includes a base film and at least two conductive layers stacked on the base film, a first conductive layer of the two conductive layers having a first thickness and a first refractive index, and a second conductive layer of the two conductive layers having a second thickness and a second refractive index, the first and second refractive indices and the first and second thicknesses being configured to generate a destructive interference of external light reflected from the first and second conductive layers. | 12-04-2008 |
| 20090002830 | Dichroic Filter - A first multilayer film filter | 01-01-2009 |
| 20090086324 | COLOR SEPARATION OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS - It is disclosed that a color separation optical system improves color reproducibility by obtaining a characteristic which approximates an ideal spectral characteristic in view of influence of polarization separation caused according to the magnitude of an incidence angle. In the color separation optical system, a curve representing a characteristic of a green-reflecting dichroic film DG has a shape along the characteristic curve representing an ideal spectral characteristic corresponding to green light. Further, the characteristic of the blue-reflecting dichroic film DB is associated with that of the green-reflecting dichroic film DG. A part, in which the transmittance of the blue-reflecting dichroic film DB changes from a low transmittance to a high transmittance, in the transmittance characteristic curve representing the characteristic of the blue-reflecting dichroic film DB is included in a predetermined wavelength region associated with the characteristic of the green-reflecting dichroic film DG. | 04-02-2009 |
| 20090141359 | PLASTIC FILM WITH A MULTILAYERED INTERFERENCE COATING - A polymer film with an optical interference system. The optical interference system comprises at least two layers of different refractive index, which layers comprise nanoscale inorganic particles having organic surface groups that are polymerizable and/or polycondensable. The layers are at least partially crosslinked through the organic surface groups. | 06-04-2009 |
| 20090168182 | OPTICAL DEVICE AND OPTICAL FILTER - An optical device is provided. The optical device comprises a substrate having a coating region and a non-coating region. A first film is on the coating region, wherein the first film has a band edge structure extending to a portion of the non-coating region with an angle between a surface of the band edge structure and a surface of the first film to diminish the attenuation of an incident light beam. | 07-02-2009 |
| 20090190226 | Color filter and method for its manufacture - A color filter ( | 07-30-2009 |
| 20100020401 | WAVELENGTH SELECTION FILTER, FILTER UNIT, LIGHT SOURCE DEVICE, OPTICAL APPARATUS, AND REFRACTIVE INDEX SENSOR - A wavelength selection filter selectively resonating and reflecting light of a given wavelength contained in incident light, includes a substrate having a rectangular waveform concave and convex structure which is formed on a plane on which the incident light falls incident, the concave and convex structure including convex portions and concave portions which are arranged in one axial direction and a multilayer structure including a first layer and a second layer respectively coating one and the other one of side surfaces, in the one axial direction, of each of convex portions of the concave and convex structure. A refractive index of the first layer and a refractive index of the second layer are both higher than a refractive index of the substrate. | 01-28-2010 |
| 20100060987 | Optical Device Exhibiting Color Shift Upon Rotation - An optical device exhibiting a color shift upon rotation is disclosed. The optical device has a textured surface having a relief structure finer than a human eye resolution but large enough not to exhibit diffraction effects. The textured surface is coated with an interference thin film that exhibits a color shift with tilt. A uniform color seen at one angle of rotation changes to another uniform color when the optical device is rotated in its own plane. A method of manufacturing of such an optical device, as well as the use of the optical device as an optical security and authentication element, is also disclosed. | 03-11-2010 |
| 20100110550 | Variable Transmission Composite Interference Filter - Now, according to the present invention, interference filters are provided that incorporate two band pass interference filters into a single composite interference filter. The two filters each have at least one band pass curve that is centered at the same wavelength for light that is incident at a given angle to the filter surface. The band pass curve shifts of the filter components, however, are dissimilar, which results in a decrease of transmitted light as the angle of incidence diverges from the given angle. | 05-06-2010 |
| 20100208351 | SELECTIVE AND ORIENTED ASSEMBLY OF PLATELET MATERIALS AND FUNCTIONAL ADDITIVES - A method of conforming non-ductile flakes to a surface is provided wherein a surface is coated with the non-ductile flakes. A first step of coating at least a portion of the surface with a coating of adhesive or a paint is required and subsequently before the coating cures a plurality of thin film flakes having a non-ductile insulating or semiconductor layer are sprinkled upon the adhesive or paint while it is still tacky. Typically the thin-film flakes have a thickness of between 50 nm and 2,000 nm, and have a length of between 2 microns and 200 microns. The flakes having a non-ductile layer are then burnished upon the surface so as to provide an active layer, which conforms to the surface. | 08-19-2010 |
| 20110069391 | IMAGING DEVICE AND METHODS OF MANUFACTURING OF THE DEVICE - A method and apparatus for producing low cost miniature images is provided. Modulated layers of materials over silicon substrate provide the shades of gray or colors needed to provide the perception of an image. Reflective characteristics as well as refractive characteristics of materials and modulated layers serve to produce the desired effects. Quasi-random geometries eliminate unwanted rainbow impressions. The resultant image is highly resistant to environmental conditions. Metal anodizing and coloring methods as well as metal anodizing interference thin layers methods are used to add more colors to the images. Relatively high-pitch patterns within the image produce secondary visual effects. | 03-24-2011 |
| 20110085240 | OPTICAL MODULE HAVING THREE OR MORE OPTICALLY TRANSPARENT LAYERS - A light dispersion filter is composed of three or more optically transparent layers each having a value equal to the value of the product of the refractive index and thickness of the optically transparent layer and transmitted light, and a plurality of partially reflective layers arranged alternately with the optically transparent layers and having predetermined reflectivities. Alternatively, a light dispersion filter has a plurality of etalon resonators which are arranged in series such that the value of the product of the refractive index of air and the interval of the etalon resonators is equal to the value of the product of the refractive index and thickness of the optically transparent layers. | 04-14-2011 |
| 20110141569 | Multi-Spectral Super-Pixel Filters and Methods of Formation - Multi-spectral filter elements and methods of formation are disclosed. Each multi-spectral filter element may include a plurality of sub-filters that are, in some embodiments, each adapted to respond to electromagnetic radiation within respective ones of a plurality of spectral bands. A method embodiment includes forming an optical cavity layer. Volume of the optical cavity layer can be reduced in at least N−1 number of spatial regions. The reducing may include a number of selective removal steps equal to the binary logarithm function Log | 06-16-2011 |
| 20110149400 | PROCESS FOR PREPARING MULTILAYERS WITH AN ORDERED MESOPOROUS STRUCTURE, MATERIAL OBTAINED IN THIS MANNER, AND USE - The present invention relates to a process for producing multilayers formed by thin mesoporous films of oxides or hybrid organic/inorganic materials by means of a combination of sol-gel methods, self-assembly of surfactants and selective functionalization of the surfaces of the pores. Each of the constituent layers has a chemical composition, thickness, and index of refraction. | 06-23-2011 |
| 20110199685 | OPTICAL DEVICE, SUN SCREENING APPARATUS, FITTING, WINDOW MATERIAL, AND METHOD OF PRODUCING OPTICAL DEVICE - An optical device includes a shaped layer, an optical function layer, and an embedding resin layer. The shaped layer has a structure forming a concave section. The optical function layer is formed on the structure, and partially reflects incident light. The embedding resin layer is made of energy beam curable resin, the embedding resin layer having a first layer having a first volume, and a second layer formed on the first layer, the second layer having a second volume, the concave section being filled with the first layer, a ratio of the second volume to the first volume being equal to or larger than 5%, the structure and the optical function layer being embedded in the embedding resin layer. In the optical device, at least one of the shaped layer and the embedding resin layer has light transmissive property, and an entrance surface for the incident light. | 08-18-2011 |
| 20110222159 | OPTICAL FILTER, ANALYTICAL INSTRUMENT, OPTICAL APPARATUS, AND METHOD OF MANUFACTURING OPTICAL FILTER - An optical filter according to the invention includes: first and second substrates opposed to each other; first and second reflecting films provided to the first and second substrates; first and second bonding films provided to the first and second substrates; and first and second barrier films disposed on surfaces of the first and second reflecting films, wherein the first barrier film has a transmittance of ozone lower than a transmittance of ozone the first reflecting film has, and the second barrier film has a transmittance of ozone lower than a transmittance of ozone the second reflecting film has. Accordingly, the reflecting films are protected from ozone or ultraviolet radiation during the manufacturing process of the optical filter and thereby the optical filter characteristics is prevented from being deteriorated. | 09-15-2011 |
| 20110222160 | METHOD OF MANUFACTURING OPTICAL FILTER, ANALYTICAL INSTRUMENT, AND OPTICAL APPARATUS - A method of manufacturing an optical filter according to the invention includes the steps of forming a first bonding film in a first bonding area of a first substrate provided with a first reflecting film, forming a second bonding film in a second bonding area of a second substrate provided with a second reflecting film, irradiating the first bonding area with ozone or an ultraviolet ray using a first mask member, irradiating the second bonding area with ozone or an ultraviolet ray using a second mask member, and bonding the first bonding film and the second bonding film to each other to bond the first substrate and the second substrate to each other, thereby protecting the reflecting films from ozone or ultraviolet radiation to prevent the reflecting films from being deteriorated in the manufacturing process. | 09-15-2011 |
| 20110255167 | MULTILAYER OPTICAL FILMS SUITABLE FOR BI-LEVEL INTERNAL PATTERNING - A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength. | 10-20-2011 |
| 20110279901 | MULTILAYER FILTER AND FLUORESCENT MICROSCOPE USING THE SAME - A multilayer filter includes a multilayer part in which a layer composed of a first material and a layer composed of a second material having a refractive index different from that of the first material are stacked in an alternating pattern. The multilayer part has a cyclic film-thickness structure in which three or more layers are defined as one cycle. | 11-17-2011 |
| 20120044570 | INTERFERENCE FILTER, OPTICAL MODULE, AND ANALYSIS DEVICE - An interference filter includes two reflective films that are opposed to each other with a gap interposed therebetween and substrates that support the corresponding reflective films. The reflective films each include a pure silver film and a silver alloy film. The pure silver film and the silver alloy film are formed on the corresponding substrate sequentially from the substrate. The silver alloy film is one of an Ag—Sm—Cu alloy film containing silver (Ag), samarium (Sm), and copper (Cu) and an Ag—Bi—Nd alloy film containing silver (Ag), bismuth (Bi), and neodymium (Nd). | 02-23-2012 |
| 20120134023 | STRUCTURE WITH OBSERVATION PORT - Provided is a structure with an observation port. The structure with the observation port is provided with the observation port and an internal structure. The internal structure is located to the backside of the observation port and has a third reflection preventing film. The first reflection preventing film is a film that reduces reflected light by using light interference. Each of the second and third reflection preventing films has a surface comprising a plurality of convex portions, a distance between apexes of each adjacent two of which does not exceed the visible light wavelengths. Light obtained by combining light reflected by the surface of the first reflection preventing film, light reflected by the surface of the second reflection preventing film, and light reflected by the surface of the third reflection preventing film has a flat wavelength dispersion within the visible light range. | 05-31-2012 |
| 20120307369 | OMNIDIRECTIONAL REFLECTOR - A process for designing and manufacturing an omnidirectional structural color (OSC) multilayer stack. The process can include providing a digital processor operable to execute at least one module and a table of index of refraction values corresponding to different materials that are usable for manufacturing an OSC multilayer stack. An initial design for the OSC multilayer stack can be provided and at least one additional layer is added to the initial design OSC multilayer stack to create a modified OSC multilayer stack. In addition, the thickness of each layer of the modified OSC multilayer stack is calculated using a merit function module until an optimized OSC multilayer stack has been calculated. | 12-06-2012 |
| 20120314295 | SPECTRAL DEVICE - The object is to easily expand a variable range of selective wavelengths without enlarging a device. A spectral device | 12-13-2012 |
| 20120327515 | OPTICAL FILTER - An optical filter includes a substrate and a filter film attached on the substrate. The filter film has alternate layers of high reflective layers and low reflective layers to form a plurality of Fabry-Perot resonators. A basic optical thickness of the high reflective layers and the low reflective layers is one fourth a central wavelength (λ | 12-27-2012 |
| 20130120843 | OPTICAL BANDPASS FILTER SYSTEM, IN PARTICULAR FOR MULTICHANNEL SPECTRAL-SELECTIVE MEASUREMENTS - The present invention relates to an optical bandpass filter system that has at least one combination of a bandpass filter that provides a first nanostructured metallic layer ( | 05-16-2013 |
| 20130188254 | THIN FILM OPTICAL FILTERS WITH AN INTEGRAL AIR LAYER - Novel thin film optical filters have an integral air layer. The frustrated total internal reflection (FTIR) phenomenon, combined with thin film interference, is used to effectively control the polarization properties of thin film coatings operating at oblique angles. The invention is applicable to high-performance thin film polarizing beam-splitters, non-polarizing beam-splitters, non-polarizing cut-off filters and non-polarizing band-pass filters, and any other thin film coatings that require the control of polarization effect. The low index layer offers an improvement in performance and the simplification of the thin film optical filter coating designs by reducing the total number of layers and the total layer thicknesses to minimize the angles of incidence and the size of the filter substrates, thereby minimizing the contact area and hence reducing the manufacturing costs. | 07-25-2013 |
| 20130308193 | OPTICAL MULTILAYER BAND PASS FILTER - An optical multilayer band pass filter includes a substrate transparent, an LWPF part provided only on one side of the substrate, which forms a rise portion and a reflection band on a shorter wavelength side, an SWPF part, which forms a fall portion and a reflection band on a longer wavelength side, and a polarization dependency improvement part, which controls split-up between a P-wave and a S-wave occurring in the rise portion and the fall portion formed respectively by the LWPF part and the SWPF part when the subject light is incident obliquely. The LWPF part, the SWPF part, and the polarization dependency improvement part have a structure in which a plurality of higher refractive index layers made of a first dielectric material and a plurality of lower refractive index layers made of a second dielectric material having a refractive index lower than the first dielectric material are deposited alternately. | 11-21-2013 |
| 20140085727 | Method for Making Color Image and Color Filter Manufactured with the Method - A method for making a color image and a color filter manufactured with the method. The color of the color image and the color of the color filter are characterized by resonance features of a Fabry-Perot resonant cavity ( | 03-27-2014 |
| 20140104688 | DISPLAY - A display includes: a laminated wiring with a conductive film arranged on a foundation layer, and a transparent film and a translucent film arranged on the conductive film; a wiring terminal part arranged at an edge portion of the laminated wiring and having the same laminated structure as that of the laminated wiring; and an insulating film that covers the laminated wiring and the wiring terminal part. | 04-17-2014 |
| 20140160569 | Apparatus and Methods for Reducing Frequency or Severity of Photophobic Responses or Modulating Circadian Cycles - The present disclosure describes systems, methods, and apparatus for reducing the frequency and/or severity of photophobic responses or for modulating circadian cycles by controlling light exposure to melanopsin ganglion cells in a retina over the action potential spectrum of the melanopsin cells of the human eye and a visual spectral response of the human eye. Embodiments of an optical filter are described. In one embodiment an optical filter may be configured to transmit less than a first amount of light weighted across the action potential spectrum of the melanopsin cells and to transmit more than a second amount of light weighted across the visual spectral response. Methods of manufacturing optical filters are also described. | 06-12-2014 |
| 20140254017 | PHOTONIC BALLS CONTAINING A MICROSTRUCTURE OF CORE-SHELL PARTICLES EXHIBITING ANGULARLY-INDEPENDENT STRUCTURAL COLOR - A photonic assembly for observing a preselected color includes an assembly of colloidal particles in a continuous liquid phase, the colloidal particles comprising a core scattering center and a shell layer surrounding the core, wherein the core scattering center is selected to scatter light having a predetermined wavelength, and wherein the shell has a thickness selected to provide an overall colloidal particle size that is about the same dimension as the wavelength of preselected color to be observed. | 09-11-2014 |
| 20140268346 | APODIZED BROADBAND PARTIAL REFLECTORS HAVING DIFFERING OPTICAL PACKETS - A broadband partial reflector includes a first multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the first multilayer polymeric optical film and a second multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the second multilayer polymeric optical film and an intermediate layer on the second side of the multilayer polymeric optical film separates the first multilayer polymeric optical film from the second multilayer polymeric optical film. The first multilayer polymeric optical film has a first baseline optical repeating unit thickness profile and a first apodized optical repeating unit thickness profile monotonically deviating from the first baseline optical repeating unit thickness profile and defining the second side of the first multilayer polymeric optical film. The second multilayer polymeric optical film has a second baseline optical repeating unit thickness profile and a second apodized optical repeating unit thickness profile monotonically deviating from the second baseline optical repeating unit thickness profile and defining the first side of the second multilayer polymeric optical film. | 09-18-2014 |
| 20140327967 | METHODS, SYSTEMS, AND APPARATUS FOR REDUCING THE FREQUENCY AND/OR SEVERITY OF PHOTOPHOBIC RESPONSES OR FOR MODULATING CIRCADIAN CYCLES - An optical filter may reduce the frequency and/or severity of photophobic responses or for modulating circadian cycles by controlling light exposure to cells in the human eye in certain wavelengths, such as 480 nm and 590 nm, and a visual spectral response of the human eye. The optical filter may disrupt the isomerization of melanopsin in the human eye reducing the availability of the active isoform, whereas the attenuation of light weighted across the action potential spectrum of the active isoform attenuates the phototransduction cascade leading to photophobic responses. Embodiments of an optical filter are described. In one embodiment an optical filter may be configured to transmit less than a first amount of light in certain wavelengths, and to transmit more than a second amount of light weighted across the visual spectral response. Methods of use and methods of manufacturing optical filters are also described. | 11-06-2014 |
| 20150293363 | LIGHT WAVE SEPARATION LATTICES AND METHODS OF FORMING LIGHT WAVE SEPARATION LATTICES - Light wave separation lattices and methods of formation are provided herein. In some embodiments, a light wave separation lattice includes a first layer having the formula RO | 10-15-2015 |
| 20150301236 | OPTICAL FILTER - An object is to improve wavelength selectivity of an optical filter which selects a wavelength of incident light. Accordingly, an optical filter is the filter that selects a wavelength of incident light and includes a multilayer film which includes three or more thin metal films by alternately laminating each thin metal film and a dielectric film, and apertures which pass through the multilayer film, and are arranged with a period of less than the wavelength of the incident light. | 10-22-2015 |
| 20160011350 | INTERFERENCE FILTER FOR NON-ZERO ANGLE OF INCIDENCE SPECTROSCOPY | 01-14-2016 |
| 20160070041 | DIELECTRIC MIRROR FOR HIGH-POWER LASER PULSES - A dielectric mirror is provided that, on the one hand exhibits a high destruction threshold when being irradiated with ultrashort high-power laser pulses, and on the other hand has a large bandwidth of group delay dispersion. The dielectric mirror includes a layer stack with a sequence of layers having different refractive indices, which act as a reflecting interference filter, wherein the layers are formed of at least three different materials exhibiting different destruction thresholds. | 03-10-2016 |
| 20160077260 | INTERFERENCE FILTER, OPTICAL MODULE, AND OPTICAL ANALYZER - An interference filter includes a fixed mirror and a movable mirror which are disposed so as to face each other with a gap therebetween. The fixed mirror is formed by laminating a one-layer TiO | 03-17-2016 |
| 20160254127 | METHOD AND DEVICE FOR PRODUCING UNIFORM FILMS ON MOVING SUBSTRATES AND FILMS PRODUCED IN THIS WAY | 09-01-2016 |
| 359590000 | Having another filter | 3 |
| 20110026123 | WAVELENGTH-DIVISION APPARATUS AND WAVELENGTH COMBINING APPARATUS - A wavelength-division apparatus and a wavelength combining apparatus are provided. Each of the wavelength-division apparatus and the wavelength combining apparatus includes a transparent block having one surface which is coated with an anti-reflective coating layer and the other surface which is coated with a partial transmitting coating layer. Each of the anti-reflective coating layer and the partial transmitting coating layer is coupled to a plurality of wavelength-selective filters that separate optical signals of different wavelengths through different paths other than a transmission path or a receiving path. Thus, the optical signals of the respective wavelengths output through the different paths can be used for various purposes such as monitoring the signal intensity and/or the signal quality. | 02-03-2011 |
| 20140071534 | INTERFERENCE FILTER, DISPLAY DEVICE, AND DISPLAY DEVICE MANUFACTURING METHOD - According to one embodiment, a display device includes an interference filter including following layers, and a display layer. The first common layer includes first and second regions. The second common layer faces the first common layer. The first spacer layer is provided between the first and second common layers and includes first and second portions facing the first and second regions. The thickness of the first portion is different from the thickness of the second portion. The second spacer layer faces at least one of the first and second portions through the second common layer and is made of the same material as that of the first spacer layer. The coating layer faces the second common layer through the second spacer layer. | 03-13-2014 |
| 20140233105 | MULTI-BAND COLOR VISION FILTERS AND METHOD BY LP-OPTIMIZATION - The invention generally relates to optical filters that provide regulation and/or enhancement of chromatic and luminous aspects of the color appearance of light to human vision, generally to applications of such optical filters, to therapeutic applications of such optical filters, to industrial and safety applications of such optical filters when incorporated, for example, in radiation-protective eyewear, to methods of designing such optical filters, to methods of manufacturing such optical filters, and to designs and methods of incorporating such optical filters into apparatus including, for example, eyewear and illuminants. | 08-21-2014 |
