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599 results about "Rainbow" patented technology
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A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
Optically variable personalized indicia for identification documents
The invention relates to identification documents, and in particular to providing optically variable personalized data to identification documents. In one implementation, we provide an identification document comprising a document layer and a first indicium. The document layer comprises a material capable of being printed by a thermally transferable optically variable ink. The first indicium is printed on the document layer and comprises personalized data and printed to the document layer by a thermally transferred optically variable ink. The first indicium may be printed to the document layer by disposing a thermally transferable optically variable ink in a mass transfer panel of a printer ribbon adapted for use in a dye diffusion thermal transfer printer, and printing the first indicium as part of a mass transfer printing process. The thermally transferred optically variable ink can be selected and printed such that the first indicium has at least one of a luster, shine, sheen, pearlescent appearance, iridescent appearance, and mirror-like appearance. This technology enables the creation of a halftone “mirror image” over a color ghost image to achieve a layered and linked multiple personalization scheme of ID documents.
Owner:L 1 SECURE CREDENTIALING
Method for printing label of optical disc using rainbow graphic cutting system
A method for printing a label on an optical disc using a rainbow graphic cutting system includes storing in a memory a location signal and color information data of the label to be printed on the surface of the optical disc. Corresponding location and data signals from among the location signals and the color information data are selectively output to a laser beam recorder LBR. A label corresponding to the signals output to the LBR is then printed on a surface of the optical disc.
Owner:LG ELECTRONICS INC
Method and device for simultaneously measuring droplet position, particle sizes and complex refractive index
InactiveCN102003936AReconstruction Spatial PositionEasy to implementPhase-affecting property measurementsParticle size analysisMeasurement deviceRainbow
The invention relates to technology for simultaneously measuring multi-phase flow particles online through multi-parameter, and aims to provide a method and a device for simultaneously measuring droplet positions, particle sizes and a complex refractive index. The method comprises the following steps of: (1) dividing a highly coherent continuous laser beam into two beams after spatial filtering and collimating beam expansion, wherein one beam radiates particles in a detected flow field region, and the other beam is used as a reference beam; (2) mixing scattered light of a lateral 30-degree to 90-degree region of particles in the detected flow field region and the attenuated reference beam to perform interference so as to form a hologram, storing the hologram in a computer after being recorded by a digital camera through an imaging device; (3) acquiring a series of reconstructed images of the detected particles along the depth direction by utilizing digital reconstruction technology; and (4) identifying the reflective spot and the refractive spot of the particles from the reconstructed images by utilizing digital image processing technology so as to acquire space coordinates and scattered light intensity ratios. Compared with rainbow measurement technology, the measurement method has the advantages that: a light path system of the measurement device is relatively simple and is easy to implement.
Owner:ZHEJIANG UNIV
Embedded active matrix OLED (organic light emitting diode) touch panel
ActiveCN103984442ALow costStrong penetrating powerSemiconductor/solid-state device detailsSolid-state devicesSensor arrayRainbow
The invention relates to an embedded active matrix OLED touch panel and belongs to the technical field of display screens. According to the embedded active matrix OLED touch panel, an OLED board comprises a lower touch sensor layer and an upper touch sensor layer, the lower touch sensor layer comprises a lower touch sensor matrix, the upper touch sensor layer comprises an upper touch sensor array, the distribution direction of the lower touch sensor array is perpendicular to that of the upper touch sensor array, and the lower touch sensor array and the upper touch sensor array compose a mutual-capacitance touch sensing unit for sensing touch signals. Therefore, touch signal sensing elements can be integrated with the OLED board to form an embedded touch panel. The embedded active matrix OLED touch panel is simple structure, thinner in thickness, lower in cost and applicable to more light-weight, thinner and shorter electronic products, and meanwhile, can effectively improve the penetrating degree of the panel, reducing rainbow rings and greatly improve usage experience of users.
Owner:EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
Light diffusive sheet and area light source element using the same
InactiveUS7156547B2Excessive concentration of lightIncrease brightnessMechanical apparatusElectric discharge tubesMean diameterRainbow
Owner:KIMOTO CO LTD
Pyrolytic layer of aluminium oxynitride and glazing comprising same
InactiveUS6838179B1Improve wear resistanceGlass/slag layered productsNatural mineral layered productsRainbowGas phase
The invention concerns glass panels comprising thin layers in particular for providing them with solar protective or low-emissive properties, and also comprising other thin layers for correcting rainbow effects induced by the former. The invention is characterized in that said glass panels comprise a glass substrate coated with an aluminum oxynitride layer, deposited by gas phase pyrolysis, and whereof the characteristics of thickness and refractive index are selected so as to attenuate colors reflected by the layer providing the glass panel with low-emissive and / or solar protective properties, layer which is deposited on the aluminum oxynitride layer.
Owner:GLAVERBEL SA
Syllabic roulette game with solmization, and method
InactiveUS20080128986A1Enhanced winning experienceImprove experienceBoard gamesCard gamesSyllableRainbow
A roulette game enables single-spin formation of meaningful character strings, which character strings may be coupled to tones for enhancing the gaming experience. The meaningful character strings may be defined by solfege-enabling letter groups, which letter groups may prompt underlying tones in solmization. The syllabic roulette game comprises a roulette wheel, a wager-enabling layout, and a plurality of balls. The wheel comprises alphabetic characters against a rainbow colored backdrop for enabling various payout schemes. A color-coordinated wager support surface is preferably disposed adjacent the roulette wheel for facilitating wager placement
Owner:EURO RAINBOW ROULETTE LLC A DELAWARE LTD LIABLEITY CO +1
Light source system and projection system
Owner:APPOTRONICS CORP LTD
Polarizing plate protection film, polarizing plate, and liquid crystal display device
ActiveUS20100220266A1Avoid it happening againQuality improvementSynthetic resin layered productsPolarising elementsTectorial membraneRainbow
A polarizing plate protection film and a polarizing plate which can restrain generation of rainbow-like irregularities and enables to produce an excellent quality liquid crystal display device when a commercially-available film is used as it is under commercially-available conditions or when a film produced by a common film forming method is used. The polarizing plate protection film includes: a transparent substrate; and a refractive index difference-mitigating part formed on the transparent substrate and provided with a low refractive index layer at its most outer layer, in which the low refractive index layer has a refractive index to the light transmitted through the transparent substrate smaller than that of the transparent substrate and bigger than that of the air. An in-plane distribution of the in-plane retardation (Re) of the transparent substrate is 5 nm or more.
Owner:DAI NIPPON PRINTING CO LTD
Optical device with diffractive grating
ActiveUS20150253570A1Enhanced inhibitory effectSelection is limitedPicture reproducers using projection devicesAdvertisingPeriodic alternatingHead-up display
The invention relates to optical devices comprising a transparent substrate and a first transparent grating layer on the substrate, the grating layer comprising periodically alternating zones having different refractive indices. According to the invention, the device comprises a second transparent grating layer located on top of the first grating layer and also comprising periodically alternating zones having different refractive indices so that the zones of the first grating layer having higher refractive index are at least partly aligned with the zones of the second grating layer having lower refractive index and vice versa, the second grating layer reducing the amount of light diffracted to non-zero transmission orders. The invention allows for reducing the so-called rainbow effect for example in head-up displays (HUDs).
Owner:DISPELIX OY
Trivalent chromic rainbow color passivating agent for galvanizing and its production
ActiveCN1584117ANo pollutionLarge operating rangeMetallic material coating processesRainbowNitrogen dioxide
A trivalent chromic ion iridescent passivating agent for galvanizing and its preparing method are disclosed. It consists of trivalent chromic salt, chelating agent, oxidant, the mol ration is 1:1:2.5-1:2:5.5, the trivalent chromic ion concentration in passivating groove liquid is 2.5-25g / L. It is prepared by adding the components into reactor, heating, mixing and chelating reacting, boiling and back-flowing to remove nitrogen dioxide after reacting, adding water and adjusting to obtain passivating agent concentrate with Cr3+ ionic concentration 30-80g / l after discharging. It achieves no pollution and wide range.
Owner:江西伟邦化工有限公司
Anti-light reflection ultraviolet light curing coating for plastic surfaces
InactiveCN101775254AObvious anti-light reflection effect of ultraviolet lightImprove wear and scratch resistancePolyurea/polyurethane coatingsRainbowUltraviolet lights
Owner:WUJIANG YOUXIN NEW MATERIAL TECH
Liquid crystal display device and polarizer protective film
ActiveUS20130093982A1InhibitionHighly suppressing occurrence of rainbow interference pattern in displayedPolarising elementsNon-linear opticsTectorial membraneRainbow
The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.
Owner:DAI NIPPON PRINTING CO LTD
Method for automatically detecting and evaluating color of laser beam emitting paper and quality of laser beams
InactiveCN104568781AAccurate measurementAvoid operabilityColor/spectral properties measurementsRainbowAutomatic control
The invention relates to a method for automatically detecting and evaluating the color of a piece of laser beam emitting paper and the quality of laser beams. The method comprises the following steps: putting and fixing a piece of laser beam emitting paper to be detected on a measuring platform by adopting an automatic detection system; setting the number of measuring points and the measuring step length of a color measuring instrument in the horizontal and vertical directions on the measuring platform; controlling the displacing, positioning and measuring of the color measuring instrument in the horizontal and vertical directions automatically, and reading the color information of the measured sample in different positions; analyzing and calculating the chromatic value by using a computer to obtain the CIELAB or CIEDE2000 color difference of the measured sample in different measuring positions; drawing a color difference distribution diagram, and detecting the color uniformity and rainbow cycle of the single laser beam emitting paper and the quality of laser beams according to the periodic distribution rule and the peak distribution rule of the color difference distribution diagram. By adopting the method provided by the invention, the problems of measurement value uncertainty and human error can be solved, and automatic detection can be realized. The method is easy and convenient to operate and can be used for measuring normatively with a small error.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
Plasticine with rainbow colors and manufacture method thereof
The invention discloses plasticine and a manufacture method thereof. The plasticine comprises the main raw materials of polyvinyl alcohol, Kathon, propanediol or propanetriol, xanthan gum, borax and glitter. The Plasticine with rainbow colors has crystal appearance, dazzlingly beautiful color, pliability, no easy crack and good plasticity, has better tenacity and very good shaping effect when being compared with the prior plasticine, has no toxicity, odor and pollution, is not easy to mildew and deteriorate, is suitable for being used as toys and teaching aids for infants and pupils and is also suitable for being used as the raw material of sculpture and arts and crafts design.
Owner:深圳云之彩美术工艺用品有限公司
Decryption hardware platform based on FPGA
ActiveCN105376061AIncrease profitAchieve crackingKey distribution for secure communicationUser identity/authority verificationComputer hardwareRainbow
The invention discloses a decryption hardware platform based on an FPGA. The decryption hardware platform is characterized in that the decryption hardware platform comprises a forwarding logic FPGA module, N mutually-independent FPGA decryption sub-modules and an ARM management sub-module which are respectively connected with the forwarding logic FPGA module, and a power supply management module supplying power to the forwarding logic FPGA module, the N mutually-independent FPGA decryption sub-modules and the ARM management sub-module, wherein the N mutually-independent FPGA decryption sub-modules are respectively connected with the ARM management sub-module, and N is no less than 2. The decryption hardware platform provided by the invention meets the decryption requirements of different files and solves the problems that an existing decryption device is single in function and poor in universality. The FPGA has the advantages that the requirements of high-speed data transmission, interfaces and high-frequency data operation are met, high-speed data transmission and high-speed data transportation are realized, and the PFGA is externally provided with a high-speed large-capacity DDR3, so that the storage of rainbow tables is realized.
Owner:GUANGZHOU HUIRUI SITONG INFORMATION SCI & TECH CO LTD
System and method for aligning RGB light in a single modulator projector
Owner:EVANS & SUTHERLAND COMP
Multilayer film and image display device
InactiveUS20070275218A1Good optical performanceHigh bonding strengthSynthetic resin layered productsRecord information storagePolyesterIndium
A multilayer film is produced by forming a first and a second layers consecutively on at least one surface of a biaxially stretched polyester base. The first layer contains particles and a binder both composed mainly of either tin oxide, indium oxide, zirconium oxide, or titanium oxide. When the refractive indexes of the base, the first layer, and the second layer are represented by η1, η2, and η3 respectively, the first layer and the second layer are adjusted for the refractive index such that the differences |η1−η2| and |η1−η3| are both not greater than 0.03. Adhesive strength is therefore kept high between the base and the layers to eliminate light interference, and the multilayer film offers an excellent optical property with few color rainbow effect.
Owner:FUJIFILM CORP
Optical film, liquid crystal panel including the same and liquid crystal display
InactiveUS20060204678A1Low solvencyHigh birefringenceLiquid crystal compositionsPolarising elementsMethyl isobutyl ketoneLiquid-crystal display
An optical film whose retardation distribution is uniform, whose rainbow-like irregularity is suppressed, whose color is transparent and whose optical characteristics are extremely good is provided. A birefringent material containing a non-liquid crystal polymer is dissolved in methyl isobutyl ketone so as to prepare a coating solution. This coating solution is applied onto a transparent film, thus forming a coating film. By drying the coating film, an optical film having a birefringent layer formed on the transparent film is obtained. As the non-liquid crystal polymer, it is possible to use polyimide that has a birefringence (Δnxyz) in a thickness direction when formed into a film of at least 0.03 and is soluble in methyl isobutyl ketone.
Owner:NITTO DENKO CORP
Method for detecting monosaccharide component in rainbow conk glycopeptide
InactiveCN103018352AEfficient separationQuality assuranceComponent separationAdditive ingredientD-galactal
The invention belongs to the field of monosaccharide component analysis, and in particular relates to a method for detecting monosaccharide components in rainbow conk glycopeptide. The method comprises the following steps of: carrying out a test on HPLC (High Performance Liquid Chromatography) chromatographic condition and systematic compatibility; subsequently respectively absorbing a mixed reference solution and a test solution to be injected into the HPLC chromatographic instrument so as to obtain a chromatogram, wherein the reference solution is a 1phenyl-3-methyl-5-pyrazolone derivative solution of D-glucose, D-mannose, D-xylose, L-xylose, D-galactose, D-arabinose, D-hydrochloric acid glucosamine and L-rhamnose reference solutions; and the test solution is a 1-phenyl-3-methyl-5-pyrazolone derivative solution of a rainbow conk glycopeptide acid hydrolysis product. Polysaccharide peptide products such as rainbow conk glycopeptide, rainbow conk intracellular glycopeptide, rainbow conk extracellular glycopeptides and coriolus versicolor polysaccharide are distinguished by detecting the mole ratio of eight monosaccharide ingredients in a test sample, so that the quality and the curative effect of the rainbow conk glycopeptide are ensured.
Owner:SHANGHAI NORMAL UNIVERSITY +1
Simultaneous Spatial and Temporal Focusing of Femtosecond Pulses
InactiveUS20080151238A1Improve SBRReducing background excitationRadiation pyrometrySpectrum investigationRainbowFemtosecond pulse shaping
A technique for simultaneous spatial and temporal focusing of femtosecond pulses improves the signal-to-back-ground ratio (SBR) in multiphoton imaging. This is achieved by spatially separating spectral components of pulses into a “rainbow beam” and recombining these components at the spatial focus of an imaging system. The temporal pulse width becomes a function of distance, with the shortest pulse width confined to the spatial focus. The technique can significantly improve the axial confinement and reduce the background excitation in multiphoton microscopy, and thereby increase the imaging depth in highly scattering biological specimens.
Owner:CORNELL RES FOUNDATION INC
Light variation anti-forgery element with multiple anti-forgery functions
InactiveCN101905588AEasy to detect and identifyMeet anti-counterfeiting requirementsOther printing matterNon-linear opticsGraphicsRainbow
The invention provides a light variation anti-forgery element with multiple anti-forgery functions, which is provided with at least one linear photo-polymerization material layer directed at different directions selectively, at least one optical isotropic material layer and at least one metal layer existing at the local part of the anti-forgery element. The anti-forgery element can have a first-line anti-forgery characteristic provided with a hollow-out metal graphic and a second-line anti-forgery characteristic for hidden information and the like identified by a polaroid. On the basis of the anti-forgery characteristics, the anti-forgery element can combine with the light variation effect of color change along with the angle, and the light variation effect of rainbow holography and / or machine-readable identified encoding characteristics, thus realizing organic combination of the first-line, the second-line and a third-line anti-forgery technologies, having the anti-forgery characteristic which is easy for people to recognize and is difficult to forge and higher anti-forgery level, and providing safe and reliable anti-forgery effect for objects provided with the anti-forgery element. The invention also provides an object with the anti-forgery element.
Owner:SECURITY PRINTING INST OF PEOPLES BANK OF CHINA +1
Optical polyester thin film and preparation method thereof
ActiveCN102514275AImprove adhesionPrevent Interfering Rainbow PatternsSynthetic resin layered productsOptical elementsSolid componentPolyester
The invention relates to an optical polyester thin film and a preparation method thereof. The thin film comprises a biaxial tension polyester base film and a bottom coating layer coated on at least a surface of the polyester base film, wherein the bottom coating layer contains a filler with a refractive index of 1.55-2.50, and the coating liquid for forming the bottom coating layer comprises 5-10% by weight of a solid component content. The optical polyester thin film of the present invention has the following advantages that: the optical polyester thin film has high transparency, good adhesion and easy winding property; the generation of the interference rainbow fringe after the hard coating processing can be effectively solved; and the optical polyester thin film is applicable for various optical functional films for LCD, high-grade IMD film interior decoration processing and other high-end film material fields.
Owner:HEFEI LUCKY SCI & TECH IND +2
One-dimensional global rainbow measurement device and measurement method
ActiveUS9217669B2Overcome defectsRealize measurementSpectrum investigationColor measuring devicesMeasurement deviceRainbow
Owner:ZHEJIANG UNIV
PET release film applied to OCA glue and production process thereof
The invention discloses a production process of a PET release film applied to OCA glue. The production process includes the steps that 1, a coating is prepared, wherein solvent oilD120, solvent oil D30, butanone and isopropanol are mixed to serve as a solvent; 2, a corona value is greater than 50 when a raw film is subjected to corona treatment, and a double-faced dust removal device is used for dust removal processing; 3, a precision coating mode is inverse coating, wherein the coating speed is 40 m / min; 4, drying and curing are performed; 5, material receiving and rolling are performed, wherein the tension during rolling is 230N, the taper is 50%, the pressure of a laminating roller is M: 0.4MPa / G: 0.4 MPa,the pressure of a traction roller is M: 0.2 MPa / G: 0.2 MPa; 6, post-curing treatment is performed at the temperature of 45 DEG C, and curing needs 48 hours. The light transmittance of the production process of the PET release film applied to the OCA glue is 90% or above, the haze is 3.0 or below, the release force stability (normal temperature) is 45 + / - 5 g, no visual particle nor foreign matter does not exist under a hundred times of a magnifying lens, a film surface is flat and free of longitudinal grains, water ripples, cross grains and obvious rainbow stripes, the aging stability is 70g or below, and the residual retention rate is 90% or above.
Owner:江阴华美光电科技有限公司
Method for preparing laser rainbow code identifier
ActiveCN102184674AConvenient queryReduce manufacturing costStampsSynthetic resin layered productsRainbowOptoelectronics
The invention relates to a method for preparing a laser rainbow code identifier, which mainly comprises the following steps of: 1, laser holographic plate making; 2, positioning die pressing; 3, positioning gravure; 4, positioning printing; 5, multilayer fine aluminum treatment; 6, coating compounding; 7, positioning printing of squeegee ink; and 8, forming. The method has the advantages that: 1, the production cost is low, raw materials used in the method can be purchased in a printing market without being imported, the process is controllable, the operation process is simple, and after a user scrapes the squeegee ink, a variable numerical code cannot be damaged, simultaneously is kept complete and clear and is favorable for the user to inquire information and truth or falsity of goods; 2, after multilayer aluminum treatment is carried out, data is completely displayed, the yield of the laser rainbow code identifier is consistent with that of the common laser holographic digital product and cannot be reduced; and 3, the laser rainbow code identifier prepared by the method has high anti-counterfeiting performance, the numerical code is difficult to damage and the product has higher individuation.
Owner:SHANDONG TAIBAO PREVENTING COUNTERFEIT
Reel-type gaming system
InactiveUS20050043080A1Easy to distinguishRoulette gamesApparatus for meter-controlled dispensingRainbowPlaying card
A reel-type display wagering game is provided in which the symbols on the frames or positions of the pay line display are capable of having an ordered arrangement. A very convenient set of specific or species symbols are poker cards or playing cards, such as (in a five line display) the Ace, King, Queen, Jack and Ten value cards in the various suits being provided. Other symbols, especially generic symbols, such as days of the week (Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday and Friday), Months of the year, numbers (e.g., 10,000; 1,000. 100, 10 and 1), the size of images (e.g., 20 mm, 16 mm, 12 mm, 8 mm and 4 mm) which would be readily distinguishable, colors of the rainbow (Red, Orange, Yellow, Green Blue, Indigo and Violet), distances or measurements (e.g., 1500 m, 800 m, 400 m, 200 m and 100 m), or any other symbols or values that have a recognizable or displayed order (e.g., value of cards, showing an order of Mazzerotti, Mercedes, Cadillac, Honda and Yugo) can be used. Additional symbol variations within the order should also be used, such as suits for cards, colors for other values, patterns (stripes, checks, plaids, patterns, etc.) are also desirable symbol modifiers. The generic symbols may be provided in a number of ways. The generic symbols may be provided in a separate set of reels or frames, or may be added as subtext or supertext on the same frame or reel position as the species symbols.
Owner:NATIVEGAMES ENTERTAINMENT INT
Light diffusive sheet and area light source element using the same
InactiveUS20030174518A1Avoid it happening againMean roughnessMechanical apparatusElectric discharge tubesMean diameterRainbow
A light diffusive sheet of the present invention comprises a transparent polymer sheet provided with a light diffusion layer 3 on one side and an uneven surface 4a having arithmetical mean deviation of 0.5 mum or less and mean spacing of 80 mum or narrower on the opposite side. Such an uneven surface can be made by forming a backcoat layer 4 including a mixture of particles having particular mean diameters in a particular proportion to a binder resin on the transparent polymer sheet. An area light source element 7 of the present invention is produced by laminating a prism sheet 6 on a light guide plate 5 so that the prism surface 61 of the prism sheet 6 is opposed to the light-emitting surface 51 of the light guide plate 5 and laminating the light diffusive sheet on the prism sheet 6 so that the uneven surface (backcoat layer) of the light diffusive sheet is opposed to the surface opposite of the prism surface. The light diffusive sheet of the present invention can prevent occurrence of a rainbow-like annular pattern without deteriorating the front luminance and view angle of the area light source even when combined with a downward-facing prism sheet.
Owner:KIMOTO CO LTD
Polyester release film for optics
The invention discloses a polyester release film for optics. The release film is obtained through bidirectional stretching, and is operated according to the following steps of: fusing and extruding polyester chips onto a casting sheet roller, and cooling, thereby obtaining polyester thick sheets; stretching the polyester thick sheets longitudinally, and coating waterborne organic silicone elastomer coating materials with the solid mass content of 5%-10% on at least one surface on line; and stretching horizontally again after preheating, thereby obtaining the polyester release film for optics through heat setting and winding. The release film provided by the invention is high in coating level degree, low in interference rainbow lines, low in haze, and high in transmissivity, and can be widely applied to components of various displays such as a polarizer, a polarizer protection film and organic EL (electroluminescence) for a panel display.
Owner:HEFEI LUCKY SCI & TECH IND +2
Multi-layer film and image display device
InactiveUS20080013179A1Improve adhesion strengthAvoid it happening againOptical elementsPolyesterIndium
A first layer containing a binder and fine particles having any one of tin oxide, indium oxide, zirconium oxide, and titanium oxide as a main component is formed at least on one surface of a base material formed of polyester in this order from a side of the base material. A second layer is disposed so as to be in contact with the first layer. Thereby, a multi-layer film is formed. When a refractive index of the base material is η1, that of the first layer is η2, and that of the second layer is η3, a formula denoted by η1<η2<η3 is satisfied. The multi-layer film has strong adhesive strength between layers, and exhibits excellent optical properties by efficiently preventing occurrence of rainbow unevenness due to interference of light on the interface. Further, the multi-layer film is used as a component of an image display device, thus ensuring excellent image quality.
Owner:FUJIFILM CORP
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