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74results about How to "Lower average reflectance" patented technology
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Photomask blank, photomask, and pattern transfer method using photomask
InactiveUS20060057469A1Lower average reflectanceVacuum evaporation coatingSputtering coatingNitrogenLength wave
A low reflective photomask blank suitable for shortened exposure wavelengths is disclosed. A photomask blank (1) having a single-layer or multilayer light-shielding film (3) arranged on a translucent substrate (2) and mainly containing a metal is characterized by comprising an antireflective film (6), which at least contains silicon and oxygen and / or nitrogen, on the light-shielding film (3).
Owner:HOYA CORP
Coatings on substrates
InactiveUS6840061B1Improve photocatalytic activityDeposited in shortPhysical/chemical process catalystsGlass rolling apparatusDeposition temperatureCoated surface
A process for the production of a photocatalytically active self-cleaning coated substrate, especially a glass substrate, which comprises depositing a titanium oxide coating on the surface of the substrate by contacting it with a fluid mixture containing a source of titanium and a source of oxygen, the substrate being at a temperature of at least 600° C. The coated surface has good durability, a high photocatalytic activity and a low visible light reflection. Most preferably the deposition temperature is in the range 645° C. to 7200° C. which provides especially good durability. The fluid mixture preferably contains titanium chloride and an ester, especially ethyl acetate. Also disclosed is a self cleaning coated substrate, especially a glass substrate, having high photocatalytic activity and low visible light reflection and a durable self-cleaning coated glass.
Owner:PILKINGTON PLC +1
Transparent Laminate
ActiveUS20180148578A1High transparencyReduce reflectivityGogglesSynthetic resin layered productsPolymer scienceMeth-
A transparent laminate including a transparent substrate and structure layer, wherein the structure layer contains protrusion portions, depression portions, or both on a surface thereof, and an average distance between the adjacent protrusion portions or between the adjacent depression portions is equal to or less than a visible light wavelength, the structure layer includes a polymerized product of an active energy ray curable resin composition, the resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the compound composition includes one or more from each of (A), (B), and (C):(A) a monofunctional (meth)acryloyl group-containing polymerizable compound;(B) alkylene glycol di(meth)acrylate; and(C) trifunctional or higher (meth)acrylate,the (A) satisfies certain conditions specifying a type and amount of a compound, and a ratio (E′150 / E′50) of storage elastic modulus E′150 of the structure layer at 150° C. to storage elastic modulus E′50 thereof at 50° C. is 0.5 or less.
Owner:DEXERIALS CORP
Optical configuration for optical fiber switch
InactiveUS6922500B2Low inertiaEasily moveMultiplex system selection arrangementsCoupling light guidesOptical switchInsertion loss
An optical fiber switch in accordance with an embodiment of the present invention includes a first plurality of ports, a second plurality of ports, a first plurality of mirrors disposed on a first surface, and a second plurality of mirrors disposed on a second surface. Each one of the first plurality of mirrors is individually controllable to direct light output from a corresponding one of the first plurality of ports to any one of the second plurality of mirrors. Each one of the second plurality of mirrors is individually controllable to direct to a corresponding one of the second plurality of ports light incident on it from any one of the first plurality of mirrors. Advantageously, optical fiber switches in accordance with embodiments of the present invention may couple more than a thousand input ports to more than a thousand output ports with an insertion loss of less than about 3 decibels.
Owner:INTEL CORP
Weather-resistant solar glass surface anti-reflective film and preparation method thereof
ActiveCN103770404ALower average reflectanceIncrease profitGlass/slag layered productsWeather resistanceRefractive index
The invention relates to a weather-resistant solar glass surface anti-reflective film and a preparation method thereof. The weather-resistant anti-reflective film comprises a W type (gama / 2-gama / 4) optical film system which is formed by a high-refractive-index film layer and a low-refractive-index film layer with which the surface of solar glass is coated with and which have a compact structure. The compact high-refractive-index film layer is one of a ZrO2, TiO2 or HfO2 thin film with the refractive index of 1.7-2.1, and the thickness of the film layer ranges from 130nm to 145nm. The compact low-refractive-index film layer is one of an SiO2 or Mgf2 thin film with the refractive index of 1.35-1.43, and the thickness of the film layer ranges from 85nm to 100nm. The average transmittance of ultrawhite glass coated with the film in the wave band of 400nm-800nm is greater than 6%; the hardness of the thin film is greater than 5H, the transmittance of the thin film, which is subjected to wear-resistant tests and acid solution soaking, has no any change; after the film is used for one year, the average transmittance of the thin film is reduced by only 0.05%. In addition, a coating solution is a single system of organic alcohol salt and can maintain high stability within a half year, so that the repeatability and feasibility of scale production can be guaranteed.
Owner:TONGJI UNIV
Transparent film-coated substrate, coating liquid for transparent film formation, and display device
InactiveUS20030157317A1Increase stickinessImprove anti-reflection effectNatural cellulose pulp/paperSynthetic resin layered productsDisplay deviceRefractive index
A transparent film-coated substrate is provided which has a transparent film having a low refractive index, and a less shrinking property; and being excellent in adhesiveness to a substrate or a transparent electroconductive film formed on the substrate, and in the film strength, the water resistance, the chemical resistance, and so forth. The transparent film-coated substrate is constituted of a substrate and a transparent coating film formed on the surface of the substrate, the transparent coating film comprising (i) a matrix containing a silicone having a fluorine-substituted alkyl group, and (ii) inorganic compound particles constituted of a shell, and a porous matter or a cavity enclosed therein, and the porous matter or the cavity being kept unchanged in the formed transparent coating film.
Owner:ASAHI GLASS CO LTD +2
Surface texture method of solar battery silicon slice
InactiveCN101937946AGood repeatabilityNot easy to reuniteFinal product manufactureSemiconductor devicesSolar batteryMaterials science
The invention discloses a surface texture method of a solar battery silicon slice, comprising the following steps of: preparing a uniform nano-scale silver particle solution by utilizing a low-cost chemical method; removing a damaged surface layer of the silicon slice and pre-texturing the silicon slice; uniformly coating the nano-scale silver particle solution on the pre-textured silicon slice and drying; soaking the obtained silicon slice in a mixed solution comprising hydrogen peroxide, hydrofluoric acid and anhydrous acetic acid for 30 s-10 min; and then soaking nitric acid, with the concentration of 40-60% by mass, for 1-10 min and cleaning by using deionized water to obtain a silicon slice with low surface reflectivity. The method has the advantages of simple and feasible process flow, low cost and energy consumption, good repeatability and transportability, high yield and better application prospect.
Owner:ZHEJIANG UNIV
Low-reflectivity high-shielding gradient structure foam material
ActiveCN109591391AGood electromagnetic shieldingReduce reflectionMetal layered productsAdhesiveFreeze-drying
The invention relates to the field of functional composite materials, in particular to a low-reflectivity high-shielding gradient structure foam material and a preparation method thereof. A low-reflectivity high-shielding function of an electromagnetic shielding foam material is achieved by preparing a foam material with different filler through the gradient structure. The low-reflectivity high-shielding gradient structure foam material is prepared by the following steps: preparing graphene loaded ferroferric oxide nanoparticle foam and carbon nanotube foam with oriented foam structures by taking ice crystals as a template separately by means of a liquid nitrogen freeze-drying method; preparing a quadrangle needle-like zinc oxide whisker nanoparticle loaded silver film by blending, pouringand drying; and finally, compounding the three through an adhesive to obtain the electromagnetic shielding foam with the gradient laminar structure. Under the circumstance of reducing reflection of electromagnetic waves effectively, the conductivity and the electromagnetic shielding performance of the compound foam material can be improved obviously, and a target of high conductivity, low reflectivity and high electromagnetic shielding efficiency of the compound foam material is achieved.
Owner:ZHONGBEI UNIV
Coated substrates
InactiveUS6929862B2Improve photocatalytic activityDeposited in shortCatalyst activation/preparationGlass/slag layered productsLight reflectionTitanium oxide
A coated substrate, especially a glass substrate, such coated substrate having high photocatalytic activity and low visible light reflection as well as being highly abrasion resistant. Preferably, the coating is a titanium oxide coating, the photolytic activity is greater than 5×10−3 cm−1min−1, and coating side visible light reflection is 35% or lower.
Owner:LIBBEY OWENS FORD CO +1
Coated substrates
InactiveUS20060019104A1Improve photocatalytic activityLess precursorCatalyst activation/preparationGlass/slag layered productsLight reflectionWear resistance
Owner:HURST SIMON JAMES +2
Anti-reflective film and manufacturing method thereof
ActiveUS20180231688A1Good effectImprove screen claritySynthetic resin layered productsCoatingsPolymer scienceInorganic particle
Described herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin and hollow inorganic nanoparticles and solid inorganic nanoparticles dispersed in the binder resin. The hollow and solid inorganic particles are dispersed in the low-refractive layer such that the amount of the solid inorganic nanoparticles positioned close to an interface between the hard coating layer and the low-refractive layer is larger than that of the hollow inorganic nanoparticles. Also described is a manufacturing method of the anti-reflective film including: applying a resin composition containing a photopolymerizable compound or a (co)polymer thereof, a fluorine-containing compound including a photoreactive functional group, a photoinitiator, hollow inorganic nanoparticles, and solid inorganic nanoparticles on a hard coating layer, and drying the applied resin composition at a temperature of 35° C. to 100° C.; and photocuring the dried resin composition.
Owner:LG CHEM LTD
High frequency device
ActiveUS20080158927A1Reflected wave powerEasy to operate and controlMultiple-port networksElectric discharge tubesHigh frequency powerReflected waves
A high frequency device for supplying a high frequency power to a load, the high frequency device includes: an oscillating unit that can vary an oscillation frequency; a high frequency power supplying unit that serves as a power source by amplifying an oscillation signal output from the oscillating unit for supplying the high frequency power to the load; a reflected-wave information calculating unit that calculates reflected wave information on a reflected wave power, and outputs the reflected wave information; a frequency control unit that controls the oscillation frequency of the oscillating unit so as to lower the reflected wave information; an impedance adjusting unit that is disposed at a downstream of the high frequency power supplying unit in a power supplying direction, and that has at least one variable reactance element which can be controlled; and an element control unit that controls the variable reactance element of the impedance adjusting unit so as to lower the reflected wave information.
Owner:DAIHEN CORP
Substrate with antireflection film
InactiveUS20070279750A1High visible light transmittanceReduce reflectivityCoatingsOptical elementsRefractive indexTransmittance
To provide a substrate with an antireflection film having a high visible light transmittance, a low reflectance and a high film resistivity, and having no cracking even when subjected to heat treatment. A substrate with an antireflection film comprising a transparent substrate and an antireflection film having even number layers in total of a coating film made of a high refractive material having a refractive index of at least 1.90 and a coating film made of a low refractive material having a refractive index of at most 1.56 laminated in this order from the transparent substrate side, wherein at least one coating film made of a high refractive material is a single layer film (a) of a titanium oxynitride layer, a laminated film (b) containing a titanium oxide layer and a zirconium oxide layer or a laminated film (c) containing a titanium oxynitride layer and a zirconium oxide layer.
Owner:ASAHI GLASS CO LTD
Coating composition for forming low-refractive-index layer, antireflective film using the same, and image display device including the antireflective film
ActiveCN101511955ALower average reflectanceLow hazeSilicaAnti-reflective coatingsMeth-Display device
Disclosed are a coating composition for forming a low-refractive-index layer, an antireflective film using the same, and an image display device including the antireflective film. In detail, the invention provides a coating composition including a fluorine compound, a reactive silicon compound, a (meth)acrylate compound, a polymerization initiator, and a solvent, an an not tireflective film using the same, and an image display device including the antireflective film. Using the coating composition, an antireflective film having low reflectance and high transmittance and exhibiting a sufficient antifouling property and high durability, can be provided, along with an image display device including the film.
Owner:CHEIL IND INC
Laminated pane with low energy transmission
InactiveUS6010775AAvoid large displacementImprove hydrolysis resistanceVehicle arrangementsRecord information storageUltravioletUv absorber
A pane with low energy transmission. The pane has a laminated structure of at least one glass sheet tinted in its mass and preferably having antisolar properties, and at least one sheet of polymer material containing a UV-absorbent, the at least one glass sheet and at least one sheet of polymer material being chosen to give a light transmission factor TLA of less than 60%, an energy transmission factor TE such that the ratio TLA / TE is greater than 1 and a transmission factor TUV less than 0.5%, the total thickness of the pane being preferably between 2.5 and 8 mm. The application of the pane, notably, as a lateral pane, rear window pane, roof or sun roof for transportation vehicle is disclosed.
Owner:SAINT-GOBAIN GLASS FRANCE
Additive for alkali environment-protecting type no-alcoholic felting liquid of mono-crystal silicone chip and using method thereof
ActiveCN102877135ALower the texturing temperatureShorten the time of texturingAfter-treatment detailsChemistryMonocrystalline silicon
The invention provides an additive for an alkali environment-protecting type no-alcoholic felting liquid of a mono-crystal silicone chip, which comprises the following components in percent by weight: 0.05 to 1 percent of protein, 0.01 to 1 percent of detergent, 0.001 to 0.003 percent of vitamin, donkey-hide gelatin or tea polyphenol or the combination thereof, and the balance of water. After adopting the additive for the alkali environment-protecting type no-alcoholic solution of the mono-crystal silicone chip and the using method thereof, compared with the condition without the additive for an alkali environment-protecting type no-alcoholic felting liquid of a mono-crystal silicone chip, the felt temperature can be decreased, no isopropanol is required to be used, the felting time is shortened, and the felting effect is obviously improved.
Owner:湖州三峰能源科技有限公司
Preparation method of anti-reflection film
The invention discloses a preparation method of an anti-reflection film. The preparation method comprises the following steps: A, taking silicon alkoxide, an alcohols solvent and a silane coupling agent to be mixed and stirred to obtain a mixed solution A; B, taking an acid catalyst and deionized water to be mixed and stirred to obtain a mixed solution B; C, slowly dropwise adding the mixed solution B into the mixed solution A to obtain silica sol; D, taking the silica sol, hollow silicon dioxide particles and a dispersing agent to be mixed and stirred to prepare and obtain a coating film solution; E, selecting a glass substrate to be polished, washed and dried; F, coating the coating film solution on the glass substrate, leveling, drying and curing to obtain a film layer; and G, putting the glass substrate in an alkaline solution for corrosion, forming concave-convex fabric surface on the surface of the corroded film layer, and then washing and drying to obtain coated glass. The interior of the anti-reflection film prepared and obtained by using the preparation method is of a hollow pore structure, and the concave-convex fabric surface is on the surface of the anti-reflection film, so that the average reflectivity can be reduced by 2% or lower.
Owner:FUYAO GLASS IND GROUP CO LTD
Multi-stack optical bandpass film with electro magnetic interference shielding for optical display filters
Provided are multi-component films useful as optical display filters. The optical display filters include a multi-layer stack that contains at least two dyads (106), i.e. pairs of layres including an electro-conducting layer (104B) and a dielectric space layer (104C), whereby in at least one of the dyads one transparent, organic layer with a refractive index greater than 1.49 is arranged. The filters have high visible light transmittance, low visible light reflection, and provide electromagnetic interference shielding in the range of 100-1000 MHZ.
Owner:3M INNOVATIVE PROPERTIES CO
Apparatus and method for reducing solder pad size in an electrical lead suspension (ELS) to decrease signal path capacitive discontinuities
ActiveUS20060152855A1Small sizeDecrease signal path capacitive discontinuityDisposition/mounting of recording headsRecord information storageCapacitanceElectricity
An apparatus and method for reducing solder pad size in an electrical lead suspension (ELS) to decrease signal path capacitive discontinuities. The method provides a base-metal layer for the ELS. A dielectric layer above the base-metal layer is also provided. A signal conductive layer is provided above dielectric layer. The signal conductive layer carries at least one solder pad portion, wherein both a size of the solder pad portion and an amount of solder applied to the solder pad portion are reduced such that the solder pad to a ground, and solder on the solder pad to adjacent solder on adjacent pads, capacitance are reduced providing low signal reflection losses and a decrease in cross-talk.
Owner:WESTERN DIGITAL TECH INC
Ceramic tile with electromagnetic wave absorption function and preparation method of ceramic tile
InactiveCN105541290AStrong ability to withstand pressureBroad application prospectsClaywaresReflectivityCeramic tiles
The invention relates to a ceramic tile with an electromagnetic wave absorption function and a preparation method of the ceramic tile. The green body of the ceramic tile is prepared from the following raw materials in percentage by mass: 18 to 25 percent of electromagnetic wave absorber, 30 to 50 percent of clay, 10 to 20 percent of feldspar, 18 to 25 percent of quartz, and the sum of the amounts of the raw materials is 100 percent. The ceramic tile provided by the invention has good electromagnetic wave absorption function, the average reflectance in the range of 2 to 18 GHz of the ceramic tile to electromagnetic waves is less than -7.5dB, and the minimum reflectance reaches -16.0dB; the breaking strength is larger than or equal to 5000N, the rupture modulus is larger than 40 MPa; the ceramic tile has an architectural ornament function and the electromagnetic wave absorption function, and has wide application prospect.
Owner:中建材科创新技术研究院(山东)有限公司
Solar glass AR (Anti-Reflection) film coating roll coater
ActiveCN103172270AImprove transmittanceHigh light transmittanceSolar transmittanceFilm-coated tablet
The invention discloses a solar glass AR (Anti-Reflection) film coating roll coater comprising a base, a conveying roller group and a conveying belt, wherein the conveying roller group and the conveying belt are mounted on the base; the conveying roller group and the conveying belt are driven to work by a conveying motor; a coating mechanism and a lifting mechanism capable of automatically lifting the coating mechanism are arranged above the conveying belt; the coating mechanism comprises a glue coating roller motor, a glue coating roller, a metering roller motor, a metering roller, an auxiliary roller, a first conveying compression roller and a second conveying compression roller; and the glue coating roller, the metering roller, the auxiliary roller, the first conveying compression roller and the second conveying compression roller are respectively mounted on coating brackets at the both sides above the conveying belt. The solar glass AR film coating roll coater provided by the utility model can be used for uniformly coating; the industrialization is realized by effectively combining a nanometer technology of a client; the light transmittance of glass can be increased by the produced product; the self-cleaning function can be achieved; the conversion efficiency of a photovoltaic cell can be effectively improved; and the solar reflectivity of the glass surface is reduced, so that the solar transmittance is improved.
Owner:东莞市欧西曼机械设备有限公司
Antireflective film, method of producing antireflective film, and eyeglass type display
InactiveUS20190187342A1Low reflection of visible lightIncrease contrastDiffusing elementsPhotomechanical apparatusDisplay deviceLight reflection
The present invention is an antireflective film, including: a support base, and a pattern composed of a photoresist material formed on the support base, the pattern having a larger size at a point closer to the support base. The present invention provides an antireflective film that is able to give antireflection effect to decrease the reflection of light, a method of producing the same, and an eyeglass type display.
Owner:SHIN ETSU CHEM IND CO LTD
Radar-infrared-visible light multi-spectrum camouflage stealth structure and preparation method thereof
PendingCN112549665ASimple processImprove controllabilityDefoamers additionSynthetic resin layered productsFrequency spectrumRadar
The invention belongs to the technical field of stealth materials in electronic materials, and discloses a radar-infrared-visible light multi-spectrum camouflage stealth structure and a preparation method thereof. The stealth structure comprises a radar wave-absorbing structure layer, an infrared heat-insulating coating layer, a bonding layer and a wave-transmitting camouflage net layer which aresequentially arranged from bottom to top; the radar wave-absorbing structure layer comprises an upper layer skin, a surface layer honeycomb core, an interlayer skin, a bottom layer honeycomb core, a bottom layer skin and a reflecting layer which are sequentially arranged from top to bottom. The stealth structure not only has good radar wave-absorbing performance in L, S, C, X, Ku and Ka wave bands, but also has infrared and visible light stealth functions. The radar-infrared-visible light multi-spectrum camouflage stealth structure provided by the invention solves the problem of multi-spectrumcamouflage of the wave-absorbing material in the radar wave band, the infrared wave band and the visible light, and meanwhile, the method is simple in process, strong in controllability and relatively low in cost, and has important commercial application value.
Owner:中国人民解放军96901部队25分队 +1
Method for preparing double-layer anti-reflection film for silicon solar cell
InactiveCN110112227AGood mechanical strength and friction resistanceImprove absorption efficiencyFinal product manufacturePhotovoltaic energy generationPliabilityChemistry
Owner:陈君
Antireflective transparent emi shielding optical filter
InactiveCN102577657AImprove corrosion resistanceLower average reflectanceMagnetic/electric field screeningCoatingsMetal alloyAdhesive
Antireflective transparent EMI shielding optical filters are provided that can be laminated to optical display devices using optically clear adhesives. The provided filters include electrically-conductive metal or metal alloy layers that can be continuous and patterned or unpatterned. Also included are methods of making the provided filters and touch sensors made using the provided filters.
Owner:3M INNOVATIVE PROPERTIES CO
Articles having retained strength
ActiveCN105392628AMaximum average flexural strengthLower average reflectanceInput/output for user-computer interactionGlass/slag layered productsFlexural strengthUltimate tensile strength
One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article retains its average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and / or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be prevented by inserting a crack mitigating layer between the glass substrate and the film.
Owner:CORNING INC
Monocrystalline silicon texturing additive formula containing alkyl glycoside and use method
InactiveCN110644057AUniform colorLower average reflectancePolycrystalline material growthAfter-treatment detailsElectrical batteryMonocrystalline silicon
The invention relates to an additive of a monocrystalline silicon wafer texturing solution containing alkyl glycoside. The additive comprises the following components of alkyl glycoside, disaccharide,organic sodium salt, inorganic salt, sodium silicate and the balance of water. The invention also discloses a texturing method of the monocrystalline silicon wafer, and the method comprises the following steps of 1) preparing a texturing additive; 2) preparing a texturing solution; 3) putting the monocrystalline silicon wafer into the texturing solution prepared in the step 2) for texturing, wherein the temperature of the texturing solution is 75-90 DEG C, and the texturing time is 7-15 min; and 4) and cleaning the monocrystalline silicon wafer subjected to the texturing solution by using mixed acid, cleaning the monocrystalline silicon wafer by using deionized water, and drying the monocrystalline silicon wafer to obtain the product. The texturing effect is excellent, the size of the texture pyramid after the texturing is small, the distribution is narrow, the reflection of the light can be effectively reduced, and the photoelectric conversion efficiency of the solar cell can be improved.
Owner:HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY
Convergent-divergent nozzle with stealth function
The invention relates to the design technique of aero-engine nozzles, in particular to a convergent-divergent nozzle with a stealth function, and aims to at least solve the problem of large occupation of a conventional convergent-divergent nozzle. The convergent-divergent nozzle with the stealth function comprises a convergent segment, a divergent segment and a straight tubular transition throat segment, wherein the end surface of a first inlet end of the convergent segment is circular, the end surface of a first outlet end, parallel to the end surface of the first inlet end, is semi-circular, and the centers of the two end surfaces are on the same plane; the end surface of a second inlet end of the divergent segment is semi-circular, the end surface of a second outlet end, parallel to the end surface of the second inlet end, is circular, and the centers of the two end surfaces are on the same plane; and the straight tubular transition throat segment is connected with the first outlet end in a sealing manner through a third inlet end and connected with the second inlet end in a sealing manner through a third outlet end. The convergent-divergent nozzle with the stealth function is simple in structure, light in weight, high in reliability and convenient to mount, manufacture and lose weight, and can enhance the infrared stealth effect and the radar stealth effect without changing the structure of a plane.
Owner:AECC SHENYANG ENGINE RES INST
Method and apparatus for reducing solder pad size in an electrical lead suspension (ELS) to decrease signal path capacitive discontinuities
ActiveUS7433157B2Small sizeReduce discontinuityDisposition/mounting of recording headsRecord information storageElectricityCapacitance
An apparatus and method for reducing solder pad size in an electrical lead suspension (ELS) to decrease signal path capacitive discontinuities. The method provides a base-metal layer for the ELS. A dielectric layer above the base-metal layer is also provided. A signal conductive layer is provided above dielectric layer. The signal conductive layer carries at least one solder pad portion, wherein both a size of the solder pad portion and an amount of solder applied to the solder pad portion are reduced such that the solder pad to a ground, and solder on the solder pad to adjacent solder on adjacent pads, capacitance are reduced providing low signal reflection losses and a decrease in cross-talk.
Owner:WESTERN DIGITAL TECH INC
Autofocus apparatus having a flash synchronized to an autofocus sampling time
InactiveUS7295243B2High-speed and high-precision focusing operationReduce brightnessTelevision system detailsColor television detailsCamera lensAutofocus
The autofocus apparatus determines a focus position according to a result of sampling an AF evaluated value and drives a lens system to the focus position. This autofocus apparatus further performs a flash in synchronism with a sampling timing of an AF evaluated value.
Owner:RICOH KK
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