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Displaying method for the display and display
InactiveCN101009083AUniform brightness distributionImprove light and dark uniformityCathode-ray tube indicatorsComputer graphics (images)Gray level
Owner:INNOLUX CORP
Polyester DTY fiber and preparation method thereof
ActiveCN108385186AHigh molecular weightNarrow molecular weightSpinning head liquid feederFilament/thread formingFiberThermal insulation
The invention relates to polyester DTY fiber and a preparation method thereof. The preparation method comprises: metering a modified polyester melt, extruding, cooling, oiling, and winding to preparethe polyester POY fiber. According to the present invention, during the cooling, the longitudinal height is maintained, and the cross section area of the slow cooling chamber is increased while the plate surface temperature of the spinning plate is maintained by using the thermal insulation method; the material of the fiber is the modified polyester, the molecular chain of the modified polyester comprises a terephthalic acid chain segment, an ethylene glycol chain segment and a diol chain segment having the branched chain, the structure formula of the diol chain segment having the branched chain is defined in the specification, R1 and R2 are respectively and independently selected from straight chain alkylidene with a carbon atom number of 1-3, R3 is selected from alkyl with a carbon atomnumber of 1-5, and R4 is selected from alkyl with a carbon atom number of 2-5; the chromatic aberration [delta]E of the prepared fiber is less than 0.200; and the preparation process is simple and reasonable, and the obtained fiber has excellent performance.
Owner:JIANGSU HENGLI CHEM FIBER
Dyed polyester FDY fiber and preparation method thereof
ActiveCN108385194AExcellent performanceSimple preparation processSpinnerette packsFilament/thread formingThermal insulationSlow cooling
The invention relates to polyester FDY fiber and a preparation method thereof. The preparation method comprises: metering a modified polyester melt, extruding, cooling, oiling, drawing, carrying out heat setting, and winding to prepare the polyester FDY fiber, wherein the unchanged longitudinal height is maintained during the cooling, the cross section area of the slow cooling chamber is increasedwhile the plate surface temperature of the spinning plate is maintained by using the thermal insulation method. According to the present invention, the material of the fiber is the modified polyester, the molecular chain of the modified polyester comprises a terephthalic acid chain segment, an ethylene glycol chain segment and a diol chain segment having the branched chain, the structure formulaof the diol chain segment having the branched chain is defined in the specification, R1 and R2 are respectively and independently selected from straight chain alkylidene with a carbon atom number of 1-3, R3 is selected from alkyl with a carbon atom number of 1-5, and R4 is selected from alkyl with a carbon atom number of 2-5; the chromatic aberration [delta]E of the prepared fiber is less than 0.200; and the preparation process is simple and reasonable, and the prepared fiber has excellent performance.
Owner:JIANGSU HENGLI CHEM FIBER
Light emitting apparatus
ActiveUS20060043879A1Reduce power consumptionWide range of color displayedDischarge tube luminescnet screensElectroluminescent light sourcesPeak valueHigh color
An object of the present invention is to provide a light emitting apparatus that allows it to easily control the driving of LED and has high color rendering properties. The light emitting apparatus comprises the first light emitting device 108a that has first peak emission wavelength in blue region and emits blue light, the fluorescent material 140 that is excited by the light from the first light emitting device 108a and emits red light, the second light emitting device 108b that has second peak emission wavelength which is longer than the first peak emission wavelength and is shorter than peak emission wavelength of the fluorescent material 140, and the second light emitting device 108b that emits green light of second peak emission wavelength which is longer than the first peak emission wavelength, so as to emit light generated by blending of blue light, green light and red light to the outside.
Owner:NICHIA CORP
Metal salt-free sealing agent for aluminum alloy anodic oxide film
ActiveCN101864589AImprove corrosion resistanceGood gloss and color retentionSurface reaction electrolytic coatingCobaltOrganic compound
The invention provides a metal salt-free sealing agent for an aluminum alloy anodic oxide film, belonging to the technical field of aluminum alloy anodic oxide film post treatment. The sealing agent of the invention is prepared by water solution composed of 1.0-10g / L of a hydration accelerator, 0.01-2g / L of a wetting agent, 0.01-3g / L of an ash inhibitor and 1-15g / L of a pH buffering agent, wherein the pH of workpiece fluid is 5.5-6.5, the operating temperature is 70-90 DEG C, and the sealing speed is 1.0-2.0min / um. The metal salt-free sealing agent creatively adopts organic compounds which are easily subject to biodegradation, does not contain any metal ions of nickel, cobalt, magnesium, calcium, lithium and the like as well as fluorinions, and obtains satisfactory sealing effect of the nano-pores of the aluminum alloy anodic oxide film by virtue of the scientific and coordinated component formula of the water solution; the aluminum alloy anodic oxide film obtained by seal treatment through the sealing agent has the advantages of good corrosion resistance, capability of meeting the requirements of GB 14952.1-94, good light-protection and color-protection properties of a film layer, no ash and pruina, no water stain after drying as well as light flowing color and small color difference change in case of sealing the organic dyeing film; and the metal salt-free sealing agent is widely applicable to sealing treatment of an original-color anodic oxide film, an electrolytic coloring anodic oxide film, a hard oxide film and a dyeing anodic oxide film.
Owner:WUHAN RES INST OF MATERIALS PROTECTION
Liquid crystal display device
InactiveUS20090267879A1Improve lightnessHigh saturationStatic indicating devicesNon-linear opticsLiquid-crystal displayComputer science
A liquid crystal display device includes a liquid crystal display panel for performing color display, and a backlight unit that includes RGB-LEDs and white LEDs. The RGB-LEDs and the white LEDs are different from each other in color difference between a white point and each primary color point in the respective images displayed on the liquid crystal display panel when the RGB-LEDs and the white LEDs are individually turned on. Further, the light source includes a backlight control section arranged to select one type of the light-emitting elements to emit light, so that the color difference in an image display on the liquid crystal display panel is smaller when the image has a higher lightness.
Owner:SHARP KK
Texturing method of polycrystalline silicon wafer cut by diamond wire
ActiveCN105810761AControl reaction rateImprove conversion efficiencyPolycrystalline material growthAfter-treatment detailsHydrofluoric acidInorganic ions
The invention discloses a texturing method of a polycrystalline silicon wafer cut by a diamond wire. The method comprises the following steps: firstly, immersing the polycrystalline silicon wafer cut by the diamond wire into a mixed water solution of an alkaline solution and an alkaline reaction control agent, removing a surface damage layer of the silicon wafer and immersing the polycrystalline silicon wafer into a hydrofluoric acid solution containing inorganic ions and organic molecules for reaction; secondly, carrying out pretreatment on the polycrystalline silicon surface by a mixed solution of a hydrofluoric acid and hydrogen peroxide and simultaneously adding a pore-forming regulator; and finally texturing the silicon wafer surface by a mixed acid solution of the hydrofluoric acid and a nitric acid. The texturing method has the advantages that the prepared polycrystalline textured wafer is uniform in suede, small in color difference and consistent in etching depth, and has low surface reflectivity and relatively high conversion efficiency; the preparation method is simple and feasible; the reagent cost is relatively low; the reaction conditions are easy to implement; and the texturing method is relatively good in compatibility with an existing industrial production procedure and is suitable for popularization and application.
Owner:NANJING TECH UNIV
Piecedyed jet black fine-spun facing and preparation method thereof
InactiveCN101671950AImprove hydrophilicityImprove dye uptakePhysical treatmentDyeing processTextile technologyNatural fiber
The invention discloses a piecedyed jet black fine-spun facing and a preparation method thereof, and relates to the technical field of wool spinning. Raw fiber used comprises natural wool fiber. The preparation method comprises steps of preparation, spinning, weaving, dyeing, finishing and the like. The method is characterized in that the raw fiber used further comprises wool natural fiber, and non-wool natural fiber or / and chemical fiber blended spinning material. The preparation method comprises a step of wool top chlorination treatment in the preparation step, or fabric chlorination treatment in the step of dyeing and finishing, further comprises steps of low-temperature plasma treatment in the steps of preparation, spinning or dyeing and finishing to generate obvious dyed color to enhance effect, so even jet black wool and blended-spun and fine-spun facing without dyeing defect can be obtained. Detection by a computer color photometer shows that blackness of the facing is deep, L value is up to 3.5-9.5, chromatic aberration between pieces is small, and delta E is equal to or less than 0.5. No expensive piece goods treating machine is needed, and the method has the advantages oflow cost, simple process and stable quality.
Owner:JIANGSU DANMAO TEXTILE
Optical system of multispectral area array CCD (Charge Coupled Device) imager
InactiveCN101866054AImprove performanceHighly integratedSpectrum investigationOptical elementsAviationOptic system
The invention discloses an optical system of a multispectral area array CCD (Charge Coupled Device) imager, relating to the field of design and manufacture of the optical system of the multispectral area array CCD imager and solving the problems that the traditional multispectral imager can only obtain spectrum information of a certain wave band of a target at the same time and can not realize the design requirements of a multispectral optical system with wide wave band range and temperature range and a long back working distance. The system consists of two sets of subsystems, a first set of subsystem realizes spectrum information of untraviolet, blue, green, red and infrared wave bands, and the system obtains information of different wave bands through two lens sets and a corresponding detector and carries out imaging; and a second set of subsystem image the obtained information by adopting two germanium lenses and a long wave infrared detector to realize spectrum information of a long wave infrared wave band. The invention realizes simultaneously imaging of a target at six wave bands by adopting two sets of optical systems and is suitable for multispectral imaging places with strict requirements on the volume and the weight, such as aviation shooting.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Light emitting apparatus
ActiveUS7569987B2Reduce power consumptionWide range of colorsDischarge tube luminescnet screensElectroluminescent light sourcesHigh colorPeak value
An object of the present invention is to provide a light emitting apparatus that allows it to easily control the driving of LED and has high color rendering properties.The light emitting apparatus comprises the first light emitting device 108a that has first peak emission wavelength in blue region and emits blue light, the fluorescent material 140 that is excited by the light from the first light emitting device 108a and emits red light, the second light emitting device 108b that has second peak emission wavelength which is longer than the first peak emission wavelength and is shorter than peak emission wavelength of the fluorescent material 140, and the second light emitting device 108b that emits green light of second peak emission wavelength which is longer than the first peak emission wavelength, so as to emit light generated by blending of blue light, green light and red light to the outside.
Owner:NICHIA CORP
Dental tool with penetration indicating bands
InactiveUS20150147715A1Increase contrastEasy to detectDental implantsSurgeryDental instrumentsEngineering
A dental instrument 1 adapted for performing osteotomy includes a mounting shank 2 and, in line therewith, a working portion 3 including cutting zones 3A, of which at least part is covered by a coating of carbon-enriched tungsten carbide except for a plurality of annular bands 10 distributed along the length of the working portion to indicate the depth of penetration of the tool into a portion of jaw.
Owner:BIOTECH DENTAL
Ultralow bath-ratio yarn dyeing machine with three-level vane pump
InactiveCN102134793ACycle fastAvoid layer chromatic aberrationTextile treatment using short bath ratio liquorTextile treatment machine arrangementsYarnThree level
The invention discloses an ultralow bath-ratio yarn dyeing machine with a three-level vane pump, comprising a dye vat, a yarn stand and a vane pump, wherein the bottom of the yarn stand is a yarn stand disk; the yarn stand disk is provided with a hole communicated with a dye liquor input channel in the dye vat; the vane pump is arranged below the whole dye vat and is a three-level vane pump; a shaft of the three-level vane pump is connected with an internal motor shaft coaxially; the dye vat is connected with the inlet of the three-level vane pump; the three-level vane pump comprises an axial flow level, a centrifugal level and a fixed guide vane level; the axial flow level and the centrifugal level are connected with the motor in sequence through the same transmission shaft; dye liquor flows into the axial flow level through an in-flow channel; the dye liquor flowing out of the axial flow level directly enters the inlet of the centrifugal level; and the dye liquor flowing out of the centrifugal level enters an out-flow channel after passing through the fixed guide vane level. During work, the dye liquor in the dye vat does not exceed the yarn stand disk all the time and the bath ratio is lower than 1:3. The ultralow bath-ratio yarn dyeing machine can achieve required lift when the dye liquor in the yarn dyeing machine is lower than a spindle, so as to realize the low bath ratio of the yarn dyeing machine as well as the purpose of saving energy and reducing emission.
Owner:高勋绿色智能装备(广州)有限公司
Film sheet used for cover plate and manufacturing method thereof
InactiveCN107517552ASmall color differenceWith texture effectMirrorsCasings/cabinets/drawers detailsEngineeringPrinting ink
The invention discloses a film sheet used for a cover plate. The film sheet comprises a transparent base material, a printing ink layer, a UV texture layer and an optical film layer. The transparent base material comprises a first surface and a second surface opposite to the first surface. The printing ink layer is arranged on the first surface. The optical film layer is arranged on the UV texture layer. The UV texture layer is arranged on the second surface or on the printing ink layer. The printing ink layer is a light-transmit colored layer. The optical film layer is a reflecting layer. The invention also discloses a manufacturing method of the film sheet used for the cover plate. A technology is simple, film coating time is short, processing cost is low, the film sheet is combined with the optical film layer through the printing ink layer so that a color difference of the film sheet can be reduced and a color can maintain consistency, and simultaneously the cover plate which is pasted with the film sheet possesses a texture effect.
Owner:JRD COMM (SHENZHEN) LTD
Spectral beam combining device for realizing spectral width compression through two-time diffraction by using grating and reflecting element
ActiveCN107272214AImprove dispersionAchieving secondary dispersionOptical elementsGratingLaser array
Disclosed is a semiconductor laser spectral beam combining device for for realizing spectral width compression through two-time diffraction by using a grating and a reflecting element. The device comprises a semiconductor laser light source, a slow axis collimating cylindrical lens, a transforming lens, a grating, a reflecting element and an output coupling mirror. In the invention, the single grating is used as a diffraction element, the reflecting element reflects the beam which is diffracted by the grating for the first time, the beam is secondarily dispersed when passing through the grating again, and the dispersive power is doubled. Through the feedback of the output coupling mirror, the laser of each unit of a semiconductor laser array is locked at a different wavelength to obtain a laser output of high power and high brightness. The device of the invention overcomes the limitation of the gain line width of a gain material in the traditional spectral beam combination to the number of beam combining units, can increase the number of beam combining units within the gain line width and the high-efficiency diffraction wavelength range of the grating, increases the output power significantly, reduces the resonant cavity length with a certain spectral width, makes the laser structure compact and improves laser mode stability.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Method and apparatus for dynamic image contrast expansion
InactiveUS20070065008A1Eliminate flickeringReduce noiseTelevision system detailsImage enhancementDynamic contrastGray level
The present invention discloses a method and an apparatus for applying a dynamic contrast expansion technique to plasma display panels through performing a gamma conversion for the inputted image to convert the relationship of the brightness and gray level of the inputted image into a linear relation, performing a subtraction for the gray level value of the image to maintain the image at its smallest color deviation, analyzing the image property histogram to compute the maximum gray level and the minimum gray level required for carrying out the image contrast expansion and obtaining an image contrast expansion gain, and adopting an average of several previously inputted image contrast expansion gains and a current image contrast expansion gain as the contrast expansion gain used in the actual contrast expansion gain formula, so as to compute a new outputted gray level value after the image contrast expansion is performed.
Owner:MARKETECH INT
Optical Imaging Lens and Lens Assembly
A lens assembly for an optical imaging lens is disclosed, which includes a first lens, wherein the first lens has a negative power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the sixth lens has a positive power, wherein the second lens and the third lens define a first cemented achromatic lens assembly, and the fourth lens and the fifth lens define a second cemented achromatic lens assembly, wherein the first lens, the first cemented achromatic lens assembly, the second cemented achromatic lens assembly and the sixth lens are orderly arranged along the direction from the object side to the image side.
Owner:NINGBO SUNNY AUTOMOTIVE OPTECH
Multifunctional carboxylic-acid comb-shape graft copolymer concrete superplasticizer
The multifunctional super concrete plasticizing agent of carboxylic acid comb grafting copolymer is prepared through the water free radical copolymerization of the following monomers: monomer A with the general expression I in 10-40 wt%, monomer B with the general expression II in 30-70 wt%, monomer C with the general expression III in 10-50 wt%, monomer D with the general expression IV in 3-15 wt%, monomer F with the general expression VI in 0-15 wt%, and reactive defoaming agent E in 0.2-2 wt% of the sum of foregoing five kinds of monomer. The present invention can reduce the shrinkage of concrete, and has good adaptability on cement and admixture material, good dispersivity and slump maintaining performance, high weeping resistance and resolution resistance, small pumping drag, product yield near 100 % and no waste produced in the production process.
Owner:JIANGSU SOBUTE NEW MATERIALS
Liquid crystal panel comprising liquid crystal cell having multigap structure, and liquid crystal display device
ActiveCN101506724ASmall color differenceOptical filtersPolarising elementsIndex ellipsoidColor shift
Disclosed is a liquid crystal panel comprising a liquid crystal cell, a first polarizing plate arranged on one side of the liquid crystal cell, and a second polarizing plate arranged on the other side of the liquid crystal cell. The liquid crystal cell comprises red, green and blue color filters and a liquid crystal layer, and the liquid crystal layer has a multigap structure satisfying the following relation: dR >= dG > dB. The first polarizing plate comprises a first polarizer and a first protection layer arranged on the liquid crystal cell side of the first polarizer, and the first protection layer has an indicatrix satisfying the following relation: nx > ny >= nz. A liquid crystal display employing such a liquid crystal panel is reduced in color shift in an oblique direction, thereby having excellent image display characteristics.
Owner:NITTO DENKO CORP
Array substrate and liquid crystal display panel
ActiveCN103389604ASmall color differenceIncrease opening ratioStatic indicating devicesNon-linear opticsLiquid-crystal displayControl circuit
The invention discloses an array substrate and a liquid crystal display panel. In the array substrate, each pixel unit comprises a first pixel electrode, a second pixel electrode and a third pixel electrode and also comprises a control circuit acting on the second pixel electrode, the voltage of the second pixel electrode is changed through the control circuit, the third pixel electrode is connected with the second pixel electrode through a third switch, the three pixel electrodes are enabled to stay at a state for displaying an image corresponding to a 2D (two-dimensional) picture at the 2D display mode, the third pixel electrode is enabled to stay at a state for displaying an image corresponding to a black picture at a 3D (three dimensional) mode, and the first pixel electrode and the second pixel electrode stay at a state for displaying the image corresponding to the 3D picture. Through the way, the color distortion at the 2D display mode and the 3D display mode can be improved, the opening rate at the 2D display mode also can be increased, and the two-eye signal crosstalk at the 3D display mode can be reduced.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Equipment for dyeing and finishing polyester fibre flat woven tape
InactiveCN101220549ANo deformationUniform thicknessSucessive textile treatmentsTextile treatment containersPolyesterEngineering
The invention discloses a dyeing and finishing device of a terylene flat meshbelt, relating to a high speed continuous dyeing and finishing device of the terylene flat meshbelt which is a dyeing dryer that collects coloring, dyeing, fixation, drying, ironing and sizing into a whole. The device comprises a front straining trestle, a back straining trestle, a carding belt device, a staining trough, a front draughting and pressing device, a drying box, a back draughting device, a cooling device, and a tape-out device. The front straining trestle is arranged on the front of the drying box while the back straining trestle is arranged on the back of the drying box; the carding belt device comprises a meshbelt freight lorry, a squirrel cage typed carding belt drum, a speed reduction motor, and a carding belt drum; and the staining trough is arranged on the lower part of the front straining trestle; the front draughting and pressing device which is arranged on a middle column of the front straining trestle comprises a frequency control motor I, a press roll, a draughting and driving roller, a pressure adjusting rod, a pressure spring, and a pressure adjusting ejector pin; the drying box is provided with a drying chamber and a heating chamber, and the back draughting device is arranged on a back column which is on the lower part of the back straining trestle, and the cooling device is provided with a plurality of cooling rollers.
Owner:杨军
Ultrafine fiber with high color fastness and manufacturing method thereof
InactiveCN101445973AAvoid wastingEliminate heavy pollutionFilament/thread formingConjugated synthetic polymer artificial filamentsPolyesterSpinning
The invention relates to ultrafine fiber with high color fastness and a manufacturing method thereof. The method comprises the steps of adding 3-40% coloring agent into a polymer powder to make into colored stock particles; adding the colored stock particles into spinning polymer polyester and / or polyamide in a ratio of 0.2-15%, and mixing; melt extruding the spinning polymer with a conjugate spinning machine, and coiling to obtain colored POY composite fiber; stretching and false-twist texturing to obtain colored fiber with high color fastness; and splitting with a basic hydrolysis method to obtain colored ultrafine fiber with high color fastness. The colored ultrafine fiber with high color fastness has excellent handfeel and color fastness to washing and light, and contains mass-colored dyeing components, so as to dispense with dyeing after being made into a textile. The colored ultrafine fiber has the advantages of simple process, low cost, low pollution, small product color difference, good color fastness, low fading liability, wide color spectra, and vivid and bright color.
Owner:段宏伟
Array substrate and display device
ActiveCN102914928AReduce brightness differenceSmall color differenceSolid-state devicesNon-linear opticsDisplay deviceTransistor
The invention discloses an array substrate and relates to the technical field of displaying. The array substrate comprises a substrate, grid lines, data lines and pixel units, wherein the grid lines and the data lines are formed on the substrate; each pixel unit is driven by the same grid line and the same data line, and comprises a thin film transistor structure and at least two display regions; and the thin film transistor structure drives pixel electrodes in the at least two display regions simultaneously to enable voltages applied to the pixel electrodes in the at least two display regions to be different. The invention further discloses a display device comprising the array substrate. In the array substrate, each pixel unit is divided into at least two independent display regions and different voltages are applied to the pixel electrodes in the at least two regions, so that liquid crystal molecules in each pixel unit have at least two deflection angles, the luminance difference of a liquid crystal display is reduced and the color difference is further reduced.
Owner:BOE TECH GRP CO LTD +1
Spectrum beam combination device for realizing twice diffraction by using transmission grating of plated reflecting film
ActiveCN107240856AIncreased diffractive powerAchieve dispersionSemiconductor laser arrangementsLaser output parameters controlResonant cavityLine width
The invention discloses a spectrum beam combination device for realizing twice diffraction by using the transmission grating of a plated reflecting film. The spectrum beam combination device comprises a semiconductor laser unit light source, a slow-axis collimated column lens, a conversion lens, a transmission grating and an output coupling mirror. The transmission grating of the back plated reflecting film is used as a diffraction element, namely the reflecting film is plated at the back of a grating surface, so that the dispersive power of the grating can be doubled by an incident beam through the diffraction of the transmission grating twice. According to the spectrum beam combination device, the restriction that the dispersive power of the diffraction grating is limited in traditional spectrum beam combination is overcome, the number of beam combination elements can be increased in the gain line width of the material and the high-efficiency diffraction wavelength range of the grating, and the output power is obviously improved, or the length of a resonant cavity can be shortened when certain output spectrum width is guaranteed, so that the structure of a laser unit is compacter, and the mode of the laser unit is stabler.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Array substrate and liquid crystal display panel
ActiveCN103353698AIncrease opening ratioSmall color differenceStatic indicating devicesSteroscopic systemsLiquid-crystal displayAperture ratio
The invention discloses an array substrate and a liquid crystal display panel. In the array substrate, each pixel unit comprises a first pixel electrode, a second pixel electrode and a third pixel electrode. Each third pixel electrode is connected with one second pixel electrode through a third switch. Each third switch is connected under a 2D display mode so that each second pixel electrode can be electrically connected with one third pixel electrode, each first pixel electrode, the corresponding second pixel electrode and the corresponding third pixel electrode can be respectively in the state that a corresponding image of a 2D picture is displayed and the voltage of each second pixel electrode can be changed through the voltage of the corresponding third pixel electrode. Under a 3D display mode, each second pixel electrode is not communicated with the corresponding third pixel electrode, so that each third pixel electrode is in the state that a corresponding image of a black picture is displayed. According to the mode, the aperture ratio under the 2D display mode is improved, color distortion under a large viewing angle is reduced, and meanwhile, double-eye signal crosstalk under the 3D display mode is reduced.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Large-field-angle eye lens optical system
The invention provides a large-field-angle eye lens optical system used for a head worn displayer. The large-field-angle eye lens optical system comprises a first lens, a second lens and a third lens which are coaxially arranged from a human eye observation side to a displayer side in turn along an optical axis direction, and the first lens and the third lens are positive lenses and the second lens is a negative lens. The surface, which faces the human eye observation side, of the first lens convexly faces the human eye observation side, and the radius of curvature is a positive value. The surface, which faces a diaphragm, of the second lens concavely faces the human eye observation side, and the radius of curvature is a negative value. Meanwhile, the material, the focal length and the position of the first lens, the second lens and the third lens meet a certain relation so that an image displayed on a display device is enabled to be imaged in human eyes through amplification of an eye lens. The eye lens has advantages of large aperture, large field of view, high resolution, low distortion and small size so as to be suitable for the head worn displayer and similar devices.
Owner:SHENZHEN NED OPTICS CO LTD
Thin film transistor array panel and liquid crystal display
InactiveCN1734331ASmall color differenceImprove transmittanceNon-linear opticsLiquid-crystal displayVoltage ratio
Owner:SAMSUNG ELECTRONICS CO LTD
Stone-like coating resisting temperature variation construction and preparation method thereof
The invention relates to the technical field of stone-like coatings, in particular to a stone-like coating resisting temperature variation construction and a preparation method thereof. The stone-like coating is prepared from, by weight, 1-3 parts of hydroxyethyl cellulose, 0.1-2 parts of a rheological agent, 0.1-2 parts of a pH regulator, 5-9 parts of an antifreezing agent, 3-9 parts of a coalescing agent, 90-120 parts of emulsion, 0-3 parts of a preservative, 600-900 parts of natural colored sand in reasonable granular composition and a proper amount of water. By reasonably controlling the fineness and use amount of the natural colored sand and introducing the rheological agent, flowing of the fine sand is greatly hindered, the construction temperature range is widened while good texture is maintained, the problem that the color of the colored sand varies at different temperatures is solved, all-day construction of the stone-like coating can be achieved, and thus working efficiency is improved.
Owner:广东施彩新材料科技有限公司
Manufacturing method of laminated veneer lumber
ActiveCN102554980AColor deepeningImprove flatnessWood treatment detailsWood veneer joiningMaterials preparationUltimate tensile strength
The invention discloses a manufacturing method of a laminated veneer lumber, which comprises the following steps of: 1) material preparation; 2) carbonization; 3) maintaining; 4) gluing and laying up; 5) cold pressing; 6) hot pressing; 7) edging and sawing; 8) and sanding and packaging. The manufacturing method of the laminated veneer lumber is simple, and the manufactured laminated veneer lumber has good size stability and high structural strength and is not easily deformed.
Owner:ZHEJIANG SHIYOU TIMBER
Spectral optical element, spectral colorimetric apparatus, and image forming apparatus using the same
ActiveUS20110026022A1Small color differenceReduce colorRadiation pyrometrySpectrum investigationLength waveSpectrometer
A concave reflection type diffraction optical element used for a Rowland type spectrometer, in which: the Rowland type spectrometer detects wavelengths in a range including a wavelength λ1 or more and a wavelength λ2 or less (λ1<λ2); the concave reflection type diffraction optical element has a diffractive efficiency D(λ) at a wavelength λ which shows local maximum and maximum value at a wavelength λa satisfying,λ1≦λa<7λ1+3λ210;the concave reflection type diffraction optical element includes a reference surface having an anamorphic shape; and the following condition is satisfied: R>r, where R indicates a meridional line curvature radius of the reference surface and r indicates a sagittal line curvature radius thereof.
Owner:CANON KK
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