489results about How to "Good optics" patented technology

A visualization stylet suitable is provided for use with medical devices to illuminate and visualize the interior anatomy of a body cavity or organ, wherein the stylet includes a miniature camera, light source and on-board power source.

An endotracheal visualization stylet having a self-contained light source and camera, providing ease of use, economy of manufacture and superior optics.

The present invention involves the prescribing and / or dispensing ophthalmic lenses, such as progressive addition lenses, for a wearer. In one form of the invention lens usage information is obtained from a wearer and entered into a programmed computer. The programmed computer processes the lens usage information to provide a separate weighted lifestyle score for each of one or more respective lifestyle score categories, such that each weighted lifestyle score is a function of a predetermined relationship between the respective lifestyle score category and at least ophthalmic lens design feature. The programmed computer then selects or designs an ophthalmic lens design using one or more of the weighted lifestyle scores such that the selected or designed ophthalmic lens has at least one lens design feature which has been customised using one or more of the weighted lifestyle scores.

A blue phase liquid crystal composition and a LC display using the composition. The liquid crystal composition includes a first class including a highly polar compound and a second class including a highly conjugated liquid crystal compound. The blue phase liquid crystal display device includes first and second substrates each with polarizer on the exterior surface and the blue phase liquid crystal composition sandwiched therebetween with and patterned electrodes on one of the substrates or both substrates. The patterned electrodes can be T-shaped, chevron or v-shaped, thin comb like shape and can also be flat or trapezoidal. The device outputs different light transmissions from the electrically controllable induced birefringence of the blue phase LC material for a low driving voltage, high transmittance blue phase liquid crystal display device.

The present invention provides a film suitable for applications requiring high water vapor transmission rates. The film comprises a polyolefin polymer together with from 1 to 30 percent by weight of the film of a hydrophilic polymer and from 30 to 75 percent by weight of the film of a filler having a hydrophilic surface functionality.

A cellulose film, containing a cellulose compound of formula (I), wherein, R16, R13, and R12 represent a hydrogen atom, or a group containing an aliphatic or aromatic group; —X16—, —X13—, and —X12— represent *1—O—, *1—OOC—, or *1—OOCNH—; n1 represents an average polymerization degree of 10 to 1,500, and the following relationships are satisfied; DS16long<(DS13long+DS12long)  Expression (I) 2.5≧(DS13long+DS12long+DS16long)>0.01  Expression (II) wherein DS16long, DS13long, and DS12long represent a substitution degree at the 6-, 3- or 2-position of the substituent having absorption at the longest wavelength, among the 3n1 substituents on the 6-, 3- or 2-position; and said substituent has an absorption maximum wavelength at the longest wavelength in the range of 270 to 450 nm and a molar extinction coefficient of 2,000 to 1,000,000 for a solution of CH3—X16—R16, CH3—X13—R13 or CH3—X12—R12 corresponding to —X16—R16, —X13—R13 or —X12—R12, respectively.

The invention provides an anti-reflective film, which is used for reducing the light reflection of the surface of a solar battery and comprises a silicon nitride film, a silicon oxynitride film and a silicon oxide film which are deposited on the surface of a silicon slice in sequence from inside to outside. The invention also provides a preparation method of the anti-reflective film, which comprises the following steps: (1) depositing the silicon nitride film on the surface of the silicon slice; (2) depositing the silicon oxynitride film on the surface of the silicon nitride film to enable the refractive index of the silicon oxynitride film to be less than that of the silicon nitride film; and (3) depositing the silicon oxide film on the surface of the silicon oxynitride film to enable the refractive index of the silicon oxide film to be less than that of the silicon oxynitride film. The anti-reflective film has even overall refractive index change and good optical / electrical properties and an anti-reflective effect; the preparation method is simple and is easy to realize and can provide the anti-reflective film which has even refractive index change and can effectively improve photoelectric conversion efficiency.

The invention discloses a preparation method of a photocatalytic ultrafilter membrane material with visible light activity. The method comprises the following steps: 1, preparing N-TiO2 powder; 2, preparing N-TiO2 / GO particles; 3, preparing an ultrafilter membrane; and 4, producing an ultrafilter membrane with the surface loaded with N-TiO2 / GO: processing the N-TiO2 / GO particles to prepare an N-TiO2 / GO dispersion, tiling the ultrafilter membrane on a suction filtration device, pouring the N-TiO2 / GO dispersion, carrying out vacuum pumping, and airing the obtained membrane to obtain the ultrafilter membrane with the surface loaded with N-TiO2 / GO. The photocatalytic material with the advantages of visible light activity, hydrophilic property and difficulty in loss of nano-particles is obtained through the preparation method of the photocatalytic ultrafilter membrane material with visible light activity.

The invention provides a synthesis method of a palladium nano sheet, and relates to a palladium nano material. The method comprises the following steps: adding a palladium precursor, a surface protectant, and halogen ion-containing organic salt or halogen ion-containing inorganic salt to a solvent to obtain mixed liquor; placing the mixed liquor under a carbon monoxide atmosphere, and heating to 10-200 DEG C; and then cooling to room temperature, adding acetone, carrying out centrifugal purification, and cleaning to obtain the palladium nano sheet. The synthesized palladium nano sheet has the advantages of high yield greater than 80%, uniform particle diameter with the deviation smaller than 10%, ultrathin structure with the thickness about 1.8nm, larger specific area, high atom utilization ratio and favorable electro-catalytic activity. The size of the obtained palladium nano sheet can be well adjusted. The palladium nano sheet has good near-infrared spectrum absorption feature, has prodigious potential application in the biological thermal therapy, such as the application in the near-infrared thermal therapy for tumors; and the palladium nano sheet has favorable electro-catalytic performance.

The invention provides a transition metal-doped molybdenum disulfide thin-layer material as well as a preparation method and application thereof. The two-dimensional size of the thin-layer material is50-500 microns, and the thickness ranges from 0.7-2.2 nanometre; and the method comprises the following steps that a molybdenum source and an inorganic salt mixture, a transition metal doping sourceand the inorganic salt mixture as well as a sulfur source are subjected to chemical vapor deposition reaction in a protective gas, and a transition metal doped molybdenum disulfide thin layer materialis obtained on the surface of a substrate. According to the method and the application, an inorganic salt assisting chemical vapor deposition method is adopted, the molybdenum source, the transitionmetal doping source and the inorganic salt are mixed, and then the chemical vapor deposition reaction is carried out, so that the metal replacement type doping of transition metal sulfide is realized,so that the doped molybdenum disulfide thin-layer material with large size distribution is prepared; and the method is simple and easy to operate, the process is controllable, the obtained material is good in morphology, optical, electrical and other performances are excellent, and the method and the application have a wide application prospect.

An adjustable fluid-filled lens or minor assembly 100 comprising a fluid-filled envelope and a supporting structure therefor; the fluid-filled envelope being constituted by a first wall that is formed of a distensible elastic membrane 15 having an exterior optical surface of variable focusing power, a second wall 18 that is spaced from the first wall on a z-axis, and a collapsible peripheral side wall 17 that extends between the first and second walls, and being filled with a substantially incompressible fluid 16; a membrane holding structure 14 that is attached to a peripheral edge of membrane 15 for holding the membrane under tension; and one or more selectively operable actuator assemblies r1, r2, r3 for moving one or more corresponding regions of the peripheral edge of the membrane on the z-axis towards and away from the second wall 18 for controlling the profile of the peripheral edge of the membrane; wherein the or each actuator assembly comprises a connecting member 91, 92, 93 that is attached to the membrane or membrane holding structure at a respective actuation point, a linear actuator 531, 532, 533 that is mounted to the supporting structure and a linkage 81, 82, 83 that is connected between the connecting member and an actuation point a1, a2, a3 on the linear actuator; wherein the linear actuator is a linear SMA actuator comprising an array of SMA wires 53 that are coupled together to work in parallel and which extend transversely of the z-axis, and the linkage is configured for converting linear motion of the actuation point of the SMA actuator in a direction transverse the z-axis to linear motion of the connecting member on the z-axis, thereby to move the corresponding region of the peripheral edge of the membrane 5 towards or away from the second wall 18.

The invention discloses an ultraviolet (UV) curable super-hydrophobic anti-fingerprint coating, which consists of a polyurethane acrylate (PUA) resin, an acrylic ester resin, an activated fluorine monomer, a silicon resin and modified nano SiO2. The UV curable coating consists of a PUA oligomer, an activated thinner, a photoinitiator and an additive. According to the UV curable super-hydrophobic anti-fingerprint coating, the UV curable coating is prepared from the high-activity PUA oligomer, the activated thinner, the photoinitiator and the like, and a monomer with a special structure is added to resist fingerprint impressions; on such a basis, the activated fluorine monomer, the silicon resin and the like are introduced to form surface-dense and stable self-demixing hydrophobic varnish, so that a self-cleaning effect is achieved; and the modified nano SiO2 is used for constructing a surface micro / nanostructure by adopting a self-assembly technology, so that the UV curable super-hydrophobic anti-fingerprint coating has high performance. The invention also discloses a preparation method for the UV curable super-hydrophobic anti-fingerprint coating.

A method of manufacturing a composite tungsten oxide nanoparticles, and infrared-shielding infrared absorbing material body, the use of the infrared-absorbing material comprises a composite tungsten oxide nanoparticles are manufactured by sol-gel method, the manufacturing method for the first reaction in the sol-gel process the proportion of the desired composite element directly added to the solution and allowed rapid precipitation, drying and then heat-treated after special atmosphere to obtain a composite tungsten oxide nanoparticle material, or the general formula M1xM2yWO M1xM2yWORz or M1xWORySz, wherein M1 is IA - Group IIIA or a transition metal element, M2 of Group IA - IIIA or a transition metal elements, W is tungsten, O is oxygen, R, S of IVA - VIIA elements, specifically, R, S may be in sol-gel when you import or atmosphere heat treatment during synthesis. This material is used in the field of infrared-absorbing material, and thus the production method can improve the tungsten oxide nanoparticles molecular absorption wavelength greater than 1200nm infrared.

The invention discloses a silicon substrate nano-structure for a solar cell and a preparing method thereof, and the method includes: cleaning silicon chips; spin-coating and covering single layer polystyrene (PS) spheres on the surface of the silicon chips; etching the PS spheres and reducing the sizes of the PS spheres; depositing a metal film layer on the surface of the silicon chip surface and forming metal mask; removing residual PS spheres on the silicon chip surface and remaining for the left metal masking layer; forming the silicon substrate nano-structure by using a dry etching or wet etching method; treating the silicon chips by heated concentrated acid and removing the residual metal and finishing the preparation of the silicon substrate nano-structure. According to the silicon substrate nano-structure for the solar cell and the preparing method thereof, PS spheres masking and metal film growth are utilized and the dry etching method and the wet etching method are combined so that a preparing method of silicon substrate nano-structure for the solar cell is provided. According to the silicon substrate nano-structure, the reflectivity is low, the light trapping ability is of high efficient, the light absorption of the solar cell is enhanced and the efficiency of the solar cell is improved.

The invention discloses a wireless capsule endoscope with an annular lens, which comprises a capsule casing (1), a control device (2), a shooting device (3), a light source (4), a wireless receiving / transmitting device (5) for the wireless transmission of a shot image and an energy source supplying device (6) for respectively providing an energy source to the control device (2), the shooting device (3), the light source (4) and the wireless receiving / transmitting device (5), wherein the control device (2), the shooting device (3), the light source (4), the wireless receiving / transmitting device (5) and the energy source supplying device (6) are all sealed in the capsule casing (1). The wireless capsule endoscope with the annular lens is characterized in that a transparent area (11) for the light source (4) to project out light rays is arranged on the capsule casing (1), the shooting device (3) comprises an image sensor (31), a reflecting mirror (32) is arranged between the image sensor (31) and the transparent area (11), the outer side of the reflecting mirror (32) is sleeved with an annular lens (33), and light rays at the outer side of the transparent area (11) are reflected onto the image sensor (31) for imaging by the annular lens (33). According to the endoscope, the image sensor is effectively utilized by combining the annular lens and the reflecting mirror. A photo shot by utilizing the system disclosed by the invention does not have a central black area, and the effective information quantity of a picture is greatly enhanced.

The invention discloses preparing methods of carbon quantum dots and a phosphorescence composite material of the carbon quantum dots. The carbon quantum dots are synthesized through aniline monomers such as 3,5-diaminobenzoic acid, 2,4-diaminobenzenesulfonic acid and 2,6-diaminotoluene under the room-temperature condition. The composite material is compounded by the water-soluble carbon quantum dots and a hydrophilic poymer such as polyacrylic acid, sodium polyacrylate, polyacrylamide, polymaleic anhydride, polymaleic acid and sodium polystyrenesulfonate. The preparing technology is simple, the raw materials are easy to obtain, the cost is low, and the preparing method is poisonless and environmentally friendly. The carbon quantum dots are diversified, and have the advantages of being highin fluorescence quantum efficiency, good in water solubility and the like; the phosphorescence composite material is diversified, long in phosphorescence service life at the room temperature, and excellent in phosphorescence performance and has a huge application prospect in the fields of counterfeiting prevention, display, biological and chemical detection and the like.

The invention relates to an ultra-sensitive spectral imaging astronomical telescope based on second-order compressed sensing, which comprises an optical unit and an electric unit, wherein the optical unit comprises an astronomical telescope lens, a first spatial light modulator, a collimation part, a spectrometric part, a spectral convergence part, a second spatial light modulator and a collection part; the electric unit comprises a single-photon point detector, a counter, a random number generator, a control module, a data packet memory and a compressed sensing module; a celestial image is collected through the astronomical telescope lens, and is imaged to the first spatial light modulator; a randomly modulated light beam is collimated into parallel light, and the parallel light forms a spectral band through the spectrometric part; the spectral band is secondarily randomly modulated through the second spatial light modulator, and is finally collected in the single-photon point detector; and a compressed sensing algorithm is used for obtaining an astronomical target spectral image according to a photon count value and two groups of random matrixes.

A method for laminating a functional film on to an optical base element and a tri-layer adhesive system for use in the method. The tri-layer adhesive includes a first latex adhesive layer disposed on the functional film and a second latex adhesive layer disposed on the optical base element. An HMA layer is disposed in between the latex layers to form a tri-layer adhesive to permanently retain the functionalized film on the optical base element. The method includes first coating a latex adhesive on the functional film and second coating a latex adhesive on the optical base element. An HMA is then coated on to one of the dried latex adhesive layers. The film is hot pressed on to the optical base element with the HMA sandwiched in between the latex layers to form a laminated optical device.

The invention discloses a double-hollow glass ceiling module with a film suspended therein. An optical control film serves as a middle layer, and an internally suspended film structure frame, a mounting structure frame, a reinforcing separating strip and glass are sealed into an integral double-hollow glass plate. An inner structure frame and an outer structure frame are made from a novel heat-isolating material with a coefficient of thermal expansion similar to that of the glass. The internally suspended film structure frame is structurally connected through a heat-isolating bridge. A butyl rubber tape on the outer surface of the internally suspended film structure frame serves as a first sealing layer. A second sealing layer consists of the external reinforcing separating strip and a silicone structural sealant, the whole structure is always consistent to the thermal deformation of the glass, so that the sealing capability of the whole system is more reliable, and the heat-isolating property, the moisture condensation-preventing property, the sound-isolating property and the like are greatly improved. Dirt is not easily accumulated on the outer surface of a mounted ceiling, so that the ceiling is convenient to clean and maintain. The double-hollow glass ceiling module has a flexible assembling and mounting way, and can be applied to different vertical surfaces of an outer building rail.

The invention discloses a method for preparing a negative permittivity material with graphene, carbon nanometer tubes and phenolic resin.The method includes the steps that graphene powder, carbon nanometer tube powder and phenolic resin powder are subjected to ball mill mixing, then a PVA solution is added, and the mixture is ground to be even; the powder is poured into a mold to be pressed into a sheet.A certain quantity of functional groups exist on the surface of the graphene in the composite material prepared with the method, and are not connected with each other and free of electric conduction, repulsive force exists between the functional groups, the functional groups are attached between sheet layers of the graphene and distributed on the surface of the graphene to form an interface layer used for limiting leakage conductive currents, and therefore dielectric losses are decreased.

The invention discloses solar battery packaging glass plated with three layers of anti-reflection films. The solar battery packaging glass is characterized in that three layers of optical films are sequentially plated from inside to outside on the two outer surfaces of ordinary glass 1 in an overlapping way, the first layer is an SiO2 and TiO2 or ZrO2 or Ta2O5 composite film 2 with the refractive index being 1.58 to 1.85, the second layer is a TiO2 or ZrO2 or Ta2O5 film 3 with the refractive index being 1.91 to 2.52, the third layer is the SiO2 film 4 with the refractive index being 1.43 to 1.45, in addition, the average transmission rate of the packaging glass in a visible light region is higher than 98 percent, and the transmission rate reduction amplitude is lower than 1 percent after the friction for 3000 times on a friction resistance test machine. The invention also discloses a preparation method of the solar battery packaging glass. The packaging glass provided by the invention has the average transmission rate higher than 98 percent in the visible light region, so the utilization rate of the solar energy in the visible light region is furthest improved, in addition, the preparation method is simple, the operation is easy, and the industrialization is easy to realize.

The invention provides an optical ultraviolet curable resin composition, a cured product and a display device, wherein the ultraviolet curable resin composition is a liquid resin composition and cured by irradiation with ultraviolet light; the heat resistance, the light resistance, and the moisture resistance, namely optically superior qualities are stably kept for a long time and the re-stripping property, the shock-resistance absorption and operation are excellent. The optical ultraviolet curable resin composition comprises (A) a polymer obtained by reacting polyether glycol (a-1) with alpha, beta unsaturated carbonyl compound (a-2) with function group reacted with the hydroxyl group; and (B) a photopolymerization initiator, wherein the functional group is preferably isocyanic acid ester or carboxyl group as the unsaturated carbonyl, preferably a (meth ) acryl. The resin composition is used for laminating at least two kinds of components selected from a component of the display device namely a display panel, a protection plate, and a laminar function part.

A method, apparatus for and a device manufactured by the same, for printing a microlithographic pattern with high fidelity and resolution using simultaneously optimized illuminator and pupil filters having semi-continuous transmission profiles. The optimization can be further improved if the illuminator and pupil filters are polarization selective. The optimization method becomes a linear programming problem and uses a set of relevant features in the merit function. With a suitably chosen merit function and a representative feature set both neutral printing without long-range proximity effects and good resolution of small features can be achieved. With only short-range proximity effects OPC correction is simple and can be done in real time using a perturbation method.

The invention discloses core-shell ceramic microspheres and a preparation method thereof, and belongs to the technical field of ceramic microspheres; a method combining an emulsion technique and a precursor transformation method is adopted for preparation. The preparation method comprises the steps: firstly, carrying out surface modification of SiO2 with a silane coupling agent, dispersing the modified SiO2 in an aqueous phase system by the emulsion method, dropping an oil phase ceramic precursor polysiloxane, carrying out ultrasonic dispersion to obtain a uniform emulsion, and carrying out a hydrothermal reaction in a high-pressure kettle to obtain SiO2 / PSN microspheres; and then sintering the microspheres in a vacuum furnace, cracking polysilazane at high temperature to form a SiCN ceramic, and thus obtaining the SiO2 / SiCN core-shell ceramic microspheres. The preparation method is simple and has excellent performance; the surface of the SiO2 microspheres is coated with a layer of non-oxidized SiCN shell, and thus the high-temperature heat-insulation performance of the SiO2 based core-shell structure microspheres can be improved.

The invention discloses a coat material for glass effective in energy saving, heat insulation and environment protection. The coat material is characterized in that the invention comprises by weight percent of 10 to 65 percent of improved aquosity urethane resin, 0 to 40 percent of modified aquosity acrylic resin, 2 to 55 percent of nanometer metal oxide aquosity paste, 0 to 70 percent of water, and 0 to 5 percent of auxiliary agent. The production method comprises the steps as follows: modified resin is fixed equably with water, the nanometer metal oxide aquosity paste is added, and finally the auxiliary agent is added to mix. The glass coated with the dope has high permeance rate of visible light, while the ultraviolet and the infrared ray (thermal radiation) have extremely low permeance rate, thereby having the function of high efficiency to obstruct the ultraviolet and the infrared ray. Besides, the invention is an environmental protection product taking water as the solvent, and has simple construction method. The coating membrane can solidify into membrane under the room temperature rapidly. The invention is widely used in the energy conservation and heat insulation for door-window glass of all buildings, vehicles and ships.

The invention provides a touch control display panel comprising a first electrode layer which includes a plurality of first sensing electrodes and a plurality of second sensing electrodes, a common electrode layer, and a control circuit coupled to the first electrode layer, wherein in a first period, the control circuit detects the variation of the capacitance between the first sensing electrodes and the second sensing electrodes to determine a touch control position, and in a second period, the control circuit detects the variation of the capacitance between the second sensing electrodes and the common electrode layer to determine the magnitude of touch control force of the touch control position, the first period and the second period being adjacent to each other and non-coincident. The second sensing electrodes in the first electrode layer of the touch control display panel realize time division multiplexing, being touch control sensors during touch control position detection and being pressure sensors during touch control force magnitude detection; the second sensing electrodes and the common electrode layer form a self-capacitive manner, so that cutting of the common electrode layer is not needed.

The invention discloses a silicon schottky junction taking a Bi2Se3 film as a contact layer and a preparation method. The silicon schottky junction comprises an Si substrate, wherein a Bi2Se3 schottky contact layer is arranged at the upper part of the Si substrate; an ohmic contact back electrode is arranged at the bottom of the Si substrate; an ohmic contact electrode is arranged on the Bi2Se3 schottky contact layer; and a bonding layer is arranged between the Bi2Se3 schottky contact layer and the ohmic contact electrode, and is made of Cr or Ti. With the adoption of the structure, the stable schottky junction can be formed between Bi2Se3 and n-type Si; in addition, the bonding layer can allow a Bi2Se3 single crystal sheet and an Si sheet to be pasted together effectively; the schottky junction is suitable for scale production; and the quality of a heterojunction interface can be ensured.

The invention provides a composite of linking materials, which is suitable for a water-washing non-smearing curved gravure ink. The composite consists of the following three components: component A: isocyanate-modified alkyd with a weigh percentage of 10 to 70 percent; component B: m-phenylene alkyd and / or modified m-phenylene alkyd with a weight percentage of 5 to 40 percent; component C: at least one phenolic resin oil modified by seed fat with a weight percentage of 10 to 70 percent; besides, the acid value of the composite of the linking materials is 10 to 30mgKOH / g and the viscosity is 4 to 16Pa.S / 40DEG C. The invention also provides a water-washing non-smearing curved gravure ink which mainly adopts the linking materials which improve the storage stability and the printing property of the ink, obviously improves the color saturation and lustrousness of a printed product and is beneficial to improving the anti-fake effect of the printed product.

The invention discloses a method for recycling germanium from germanium-containing glass, which comprises the following steps: 1) pulverizing germanium-containing glass into germanium-containing glass powder, adding an alkali solution into the germanium-containing glass powder, heating to 120-300 DEG C, and keeping the temperature for 1-10 hours to obtain a water solution containing sodium silicate and sodium germanate; 2) adding an alkali metal salt into the water solution containing sodium silicate and sodium germanate obtained in the step 1), regulating the pH value to 6-9, aging, carrying out solid-liquid separation, drying the solid to obtain amorphous silicon dioxide, and recycling; 3) adding magnesium chloride into the solution obtained by solid-liquid separation in the step 2) to obtain a precipitate containing magnesium germanate; and 4) mixing the precipitate containing magnesium germanate with hydrochloric acid, carrying out chlorination distillation, condensing to collect germanium tetrachloride, and hydrolyzing the germanium tetrachloride to obtain germanium dioxide. The method abandons the pyrogenic process for recycling high-silicon germanium-containing waste, lowers the energy consumption, reduces the environmental pollution, and has the advantages of simple technique, high germanium recycling rate and low recycling cost.