75results about How to "Maintain optical properties" patented technology

A lens assembly of variable focal length comprises two transparent plates (24, 38) at least partially facing each other and parallel to one another and delimiting, at least in part, an internal volume (15) containing two non-miscible liquids having different optical indices. The lens comprises an elastic element (36) capable of deforming in response to a change in pressure of the liquids, in such a way as to substantially maintain the optical properties of the lens assembly, e.g., in order to maintain the parallelism of the two transparent plates.

A light diffusion sheet comprising a transparent base material sheet; a light diffusion layer laminated on a surface of the base material sheet and containing beads dispersed within a binder; and a sticking-inhibiting layer laminated on a rear face of the base material sheet, wherein the binder of the light diffusion layer contains a thermosetting resin and the sticking-inhibiting layer is a resin layer containing an ionizing radiation curable resin. In the light diffusion sheet of the invention, which employs an ionizing radiation curable resin for the binder of the sticking-inhibiting layer, the cross-linking density of the binder can be increased, whereby the wear resistance of the sticking-inhibiting layer as well as the wear resistance of the rear face of the light diffusion sheet can be increased. Further, possible occurrence of scratches in the sticking-inhibiting layer, which is attributable to the contact between the sticking-inhibiting layer and the beads of the light diffusion layer, can be effectively avoided.

The present invention concerns ink for printing on ceramic surfaces such as glass, which contains glass frits for silica nanoparticles and optionally a pigment, and is suitable for ink jet printing.

A light diffusion sheet comprising a transparent base material sheet; a light diffusion layer laminated on a surface of the base material sheet and containing beads dispersed within a binder; and a sticking-inhibiting layer laminated on a rear face of the base material sheet, wherein the binder of the light diffusion layer contains a thermosetting resin and the sticking-inhibiting layer is a resin layer containing an ionizing radiation curable resin. In the light diffusion sheet of the invention, which employs an ionizing radiation curable resin for the binder of the sticking-inhibiting layer, the cross-linking density of the binder can be increased, whereby the wear resistance of the sticking-inhibiting layer as well as the wear resistance of the rear face of the light diffusion sheet can be increased. Further, possible occurrence of scratches in the sticking-inhibiting layer, which is attributable to the contact between the sticking-inhibiting layer and the beads of the light diffusion layer, can be effectively avoided.

This invention discloses a method for preparing water-soluble quantum dots in phase transfer condition. The water-soluble quantum dots are composed of oil-soluble quantum dots coated with amphiphilic surfactant to form a hydrophilic outer layer. The method comprises: utilizing quaternary ammonium salt amphiphilic surfactant as the phase-transfer agent, and transferring the quantum dots from oil phase to water phase. The water-soluble quantum dots have such advantages as high fluorescent intensity, narrow and symmetric fluorescent emission peak, high quantum yield, high stability, uniform dispersion and long storage life (2 months). The method has such advantages as simple process, good repeatability, and low cost. The water-soluble quantum dots can be used for biomedical analysis and detection such as fluorescent probe and cell imaging.

The invention provides a gold nanoparticle triangular plate preparing method and a method for preparing gold nanoparticle discs and gold nanoparticle hexagonal pieces on the basis of the gold nanoparticle triangular plate preparing method, relates to the technical field of gold nanoparticle preparing, and aims at providing the method which is easy and convenient to operate, high in repeatability and efficiency and is used for preparing gold nanoparticle triangular plates, gold nanoparticle discs and gold nanoparticle hexagonal pieces. The gold nanoparticle triangular plate preparing method includes the steps of preparing a gold nanoparticle seed solution through a sodium citrate aqueous solution, a tetrachloroauric acid aqueous solution and a sodium borohydride aqueous solution, preparing a gold nanoparticle triangular plate solution through the preapraed seed solution, a cetyl trimethyl ammonium bromide aqueous solution, a tetrachloroauric acid aqueous solution, a potassium iodide or sodium iodide aqueous solution, a sodium hydroxide aqueous solution and a ascorbic acid aqueous solution, and obtaining gold nanoparticle triangular plates after the liquid supermatant is abandoned. The method is easy and convenient to operate and high in repeatability and controllability, the prepared gold nanoparticle plates are unified in size, gold nanoparticle plates of different types and sizes can be synthesized, and the purity reaches 95% or higher.

A touch panel equipped with both a capacitive sensor and a piezoelectric sensor, wherein the touch panel solves the problems of increased panel thickness, changes in the optical properties, and increased manufacturing costs. This touch panel is provided with force measurement using a piezoelectric body and capacitive point detection. The force measurement uses a pair of electrodes arranged with the piezoelectric body sandwiched therebetween. The point detection uses one electrode and another electrode. At least one top electrode is disposed on the side of the top surface of the piezoelectric body, and at least one bottom electrode is disposed on the side of the bottom surface of the piezoelectric body. One electrode among the pair of electrodes used in force measurement is a bottom electrode, and at least one electrode among the two electrodes used in point detection is a top electrode.

The invention relates to a preparing method for a probe molecule which identifies tumor cells specifically, belonging to the nanometer material and biology technical field; the method comprises the following steps: (1) biocompatible folate is used for modifying PEG with the two sides being amino groups; (2) the PEG connected with the folate is modified to the surface of dendrimer PAMAM; (3) oil-soluble ligand on the surface of a quantum dot is replaced by a ligand exchange method, thus preparing a water-soluble quantum dot; the invention can lead the quantum dot to identify cancer cells expressed with high-level folate receptors, thus being capable of being used as a fluorescent probe used for the study of cytology; at the same time, the PAMAM and the PEG are modified to the surface of the quantum dot, thus improving the stability of the quantum dot greatly; furthermore, the PAMAM and the PEG have good biocompatibility and little toxicity, thus providing feasibility for the application thereof in the biology.

A light diffusion sheet comprising a transparent base material sheet; a light diffusion layer laminated on a surface of the base material sheet and containing beads dispersed within a binder; and a sticking-inhibiting layer laminated on a rear face of the base material sheet, wherein the binder of the light diffusion layer contains a thermosetting resin and the sticking-inhibiting layer is a resin layer containing an ionizing radiation curable resin. In the light diffusion sheet of the invention, which employs an ionizing radiation curable resin for the binder of the sticking-inhibiting layer, the cross-linking density of the binder can be increased, whereby the wear resistance of the sticking-inhibiting layer as well as the wear resistance of the rear face of the light diffusion sheet can be increased. Further, possible occurrence of scratches in the sticking-inhibiting layer, which is attributable to the contact between the sticking-inhibiting layer and the beads of the light diffusion layer, can be effectively avoided.

A method for manufacturing a solid-state image pickup device that includes a pixel portion and a peripheral circuit portion, includes: forming a first insulating film in the pixel portion and the peripheral circuit portion, forming a second insulating film above the first insulating film, etching the second insulating film in photoelectric conversion elements, forming a metal film on the etched second insulating film in the photoelectric conversion elements and on the second insulating film in the peripheral circuit portion, and removing the metal film in the peripheral circuit portion and forming light-shielding films from the metal film in the photoelectric conversion elements.

A zoom lens barrel comprises an exterior unit, which mainly forms an exterior portion, an optical unit having an image pickup optical system built therein, and a control unit and can be detachably mounted on a single-lens reflex camera. The optical unit includes first and second group lenses as the image pickup optical system, which can move forward and rearward in zooming and focusing, and a third group lens which can move forward and rearward in zooming. Particularly, in focusing, a first group lens holding frame for holding the first group lens and a second group lens holding frame for holding the second group lens are driven forward and rearward in a different amount in an optical axis direction through a cam follower and two cam grooves by driving a focus ring in rotation, thereby focusing is executed. The lens barrel can cope with a forward / rearward movement required in zooming and focusing and can be reduced in size.

A polymer film that has an in-plane retardation Re(λ) and a thickness-direction retardation Rth(λ) satisfying formula (i) and (ii), and that further has a surface energy of at least one surface is from 50 mN / m to 80 mN / m: (i) 0≦Re(630)≦10, and |Rth(630)|≦25; and (ii) |Re(400)−Re(700)≦10, and |Rth(400)−Rth(700)|≦35. in the formulae, Re(λ) and Rth(λ) are measurement values at the wavelength of λ nm, and an optically-compensatory film, an optical material such as a polarizer and a liquid-crystal display device using the polymer film.

A window for a display device includes a polymer resin layer, and a light transmittance film positioned on at least one side of the polymer resin layer, wherein the light transmittance film layer includes a first plastic substrate, a second plastic substrate, and a buffer layer positioned between the first plastic substrate and the second plastic substrate, and a display device including the same.

A lens assembly of variable focal length comprises two transparent plates (24, 38) at least partially facing each other and parallel to one another and delimiting, at least in part, an internal volume (15) containing two non-miscible liquids having different optical indices. The lens comprises an elastic element (36) capable of deforming in response to a change in pressure of the liquids, in such a way as to substantially maintain the optical properties of the lens assembly, e.g., in order to maintain the parallelism of the two transparent plates.

A photomask and method for maintaining optical properties of the same are disclosed. The method includes providing a substrate including a first surface having an absorber layer formed thereon and a second surface located opposite the first surface. A pattern is formed in the absorber layer to create a photomask for use in a semiconductor manufacturing process. A transmissive protective layer is also formed on at least one of the patterned layer and the second surface of the substrate. The protective layer reduces haze growth when the photomask is used in the semiconductor manufacturing process.

A transparent ceramic structure and a method of surface treatment thereof are disclosed. A glass powder is applied over an unpolished surface of an intrinsically transparent ceramic structure. The ceramic structure is then placed in high temperature which is higher than the melting temperature of the glass powder and lower than 1,700 ° C. for about 1 minute to about 5 minutes. The transparent ceramic structure is removed from the environment and cooled down so as to obtain the desired transparency and strength of the ceramic structure.

A transparent ceramic structure and a method of surface treatment thereof are disclosed. A glass powder is applied over an unpolished surface of an intrinsically transparent ceramic structure. The ceramic structure is then placed in high temperature which is higher than the melting temperature of the glass powder and lower than 1,700° C. for about 1 minute to about 5 minutes. The transparent ceramic structure is removed from the environment and cooled down so as to obtain the desired transparency and strength of the ceramic structure.

A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

A photographic light is spectrally separated by a spectral prism 9 provided in an image-formation area R of the photographic light whose luminous flux is adjusted by a group of lenses 1a-1d for adjusting the luminous flux so as to image-form the photographic light. Respective lights spectrally separated by the spectral prism 9 are imaged by means of the imaging elements 2. An infrared-ray element of the photographic light whose luminous flux is being adjusted is eliminated by an infrared-ray cut filter 8. The infrared-ray cut filter 8 is advanced and retreated by a mechanism unit 14a between a position in an optica path of the photographic light and a position distant from the optical path. In the foregoing constitution, the infrared-ray cut filter 8 and the mechanism unit 14a are disposed in a luminous flux convergence area R of the photographic light whose luminous flux is being adjusted by the group of lenses 1a-1d.

The present invention relates to a transparent polyimide film with improved tensile strength and a preparation method thereof, and more specifically to a colorless, transparent polyimide film having excellent optical properties and improved tear strength at the same time through the use of a monomer containing a functional group or an improver for improving tensile strength, and a preparation method thereof, wherein the functional group is selected from the group consisting of a hexafluoro group, a sulfone group, and an oxy group.

This invention relates to a new scale preparation method of kyrine capsule ( immunological adjuvant), as well as its application for bird influenza vaccine adjuvant and immunoregulation mechanism. This invention also relates to drug combination containing kyrine capsule, and its preparation method and application. The experiment has showed that kyrine capsule can advance antibody titer effectively. The kyrine capsule can enhance immunologic function of erythrocyte, antagonize immunosuppression, decrease apoptosis of lymphocyte, splenocyte and bursa of fabricius cell. As broad spectrum immunological adjuvant, kyrine capsule possess direct and obvious socioeconomic performance.

The invention provides a self-aligned two-dimensional crystal material field-effect semiconductor device and a preparation method thereof, and belongs to the technical field of semiconductor devices. The semiconductor device provided by the invention comprises a gate electrode region, a source electrode region, a drain electrode region and a two-dimensional crystal material layer, wherein the two-dimensional crystal material layer is connected with a source electrode and a drain electrode, and strides the local part of the gate electrode region; and a gate dielectric oxidation layer is arranged between the two-dimensional crystal material layer and the gate electrode region at the lower part of the two-dimensional crystal material layer. By a self-aligned technology provided by the invention, position alignment of the gate electrode and the source electrode and the drain electrode of the device can be automatically achieved, so that, on one hand, the coverage capacitance of the gate electrode, the source electrode and the drain electrode is greatly reduced, which has important significance for improvement of the working frequency of the device; and on the other hand, the self-aligned device structure with the gate electrode, the source electrode and the drain electrode greatly reduces channel layers, namely the parasitic resistance of the two-dimensional crystal material, between the gate electrode and the source electrode and between the gate electrode and the drain electrode, which is also beneficial to improvement of the working frequency of the device.

The invention is an optical film at least containing cellulose acylate and a compound having a structure denoted by General Formula (I) described below, and a polarizing plate and a liquid crystal display device employing the optical film.R1 and R3 represent a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkenyl group, or an aryl group, and R5a and R5b represent an alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkenyl group, an aryl group, or a heterocyclic group. R1, R3, R5a, and R5b may have a substituent group.

The invention discloses a method for preparing metal nano-particle thin films in various shapes on conductive glass, which comprises the steps of: adding gold and silver nano-particles in different shapes, further coating the nano-particles in different shapes on ITO conductive glass, treating the surface of the ITO conductive glass and changing the electrifying characteristics on the surface of the ITO conductive glass in the process of coating the surface of Indium-Tin Oxide-ITO conductive glass. When different charges are electrified on the surface of the ITO conductive glass, the nano-particles in different shapes will be absorbed on the surface of treated ITO conductive glass so as to change the optical properties of the ITO conductive glass so that the ITO conductive glass is featured by optical properties of nano-particles in different shapes at the same time. The method provided by the invention controls the thickness of the nano-particle thin film by increasing the number of times of treatment.

Described are coextruded multi-layer biaxially oriented polyolefin barrier films with improved processability, moisture vapor barrier, and stiffness. The disclosed films comprise a cyclic olefin copolymer (COC) core layer blended with hydrogenated hydrocarbon resin and at least one outer layer having functionality for solvent resistance, heat sealing, or winding, or printing / coatings or adhesion for lamination.

The present disclosure provides a method of forming a nanoscale conductive film. The method comprises providing a nanoscale base film, forming a first patterned insulating layer on the nanoscale base film, and etching the nanoscale base film in a current generation system, using the first patterned insulating layer as a mask. The nanoscale base film includes a substrate, a first overcoat on one side of the substrate, and a first nano material layer laminated between the substrate and the first overcoat. The first patterned insulating layer is formed on the first overcoat, exposing portions of the first overcoat. In the first nano material layer, first regions are masked by the first insulating layer and second regions are not masked by the first insulating layer. The first regions and the second regions are electrically isolated from each other after etching the nanoscale base film in the current generation system.