60results about How to "High optical contrast" patented technology

An apparatus and method for optically inferring an absolute pose of a manipulated object in a real three-dimensional environment from on-board the object with the aid of an on-board optical measuring arrangement. At least one invariant feature located in the environment is used by the arrangement for inferring the absolute pose. The inferred absolute pose is expressed with absolute pose data (φ,θ,ψ,x,y,z) that represents Euler rotated object coordinates expressed in world coordinates (Xo,Yo,Zo) with respect to a reference location, such as, for example, the world origin. Other conventions for expressing absolute pose data in three-dimensional space and representing all six degrees of freedom (three translational degrees of freedom and three rotational degrees of freedom) are also supported. Irrespective of format, a processor prepares the absolute pose data and identifies a subset that may contain all or fewer than all absolute pose parameters. This subset is transmitted to an application via a communication link, where it is treated as input that allows a user of the manipulated object to interact with the application and its output.

A method is disclosed for quantifying the extent a cataract impairs vision in an eye having a pupil, an ocular lens, and a retina. The method includes illuminating a localized region of the retina such that light is reflected from the localized region and is transmitted through the ocular lens. A portion of the reflected light is scattered by the cataract associated with the ocular lens. Light reflected from the localized region of the retina is collected, and the amount of scatter is measured so as to quantify the extent the scatter impairs vision of the eye.

For labeling a component provided with a metallic cover layer, it is proposed that at least one additional contrast layer is arranged over the cover layer. The contrast layer produces an optical contrast with the metallic cover layer and is capable of being eroded by a laser for producing a label.

The invention discloses a gelatinous polymer electrolyte and a preparation method for a solid electrochromism device based on a conductive polymer. The gelatinous polymer electrolyte has the advantages of good environment stability and high ionic conduction. The preparation method for the solid electrochromism device based on the conductive polymer comprises the following steps: using the working electrode deposited by a conductive polymer membrane with electrochromism performance as the positive electrode, uniformly coating the gelatinous polymer electrolyte on the surface of the conductive polymer membrane of the positive electrode material, after an electrolysis solvent A is partially volatilized and becomes thicker, taking a blank conductive substrate with the same material as the negative electrode, packaging and assembling the positive and negative electrode materials by using double faced adhesive tapes, and finally stilly placing the assembled device in the shade place for 1-4 days. The solid device based on the conductive polymer is easy to assemble and prepare, and has the electrochromism performance, so the solid device based on the conductive polymer has large application prospect in the fields, such as the display, the intelligent window, and the electronic paper.

Provided are an optical display device manufacturing system and a method for manufacturing an optical display device which can bond optical films to both surfaces of a liquid crystal cell in good condition with a simpler constitution. A first optical film F11 is fed in an orthogonal direction with respect to the width direction from a first material roll R1 formed by winding the first optical film F11 in such a manner that an absorption axis B1 extends in the orthogonal direction, and then the first optical film F11 is cut and bonded to one surface of a liquid crystal cell. A second optical film F21 is fed in an orthogonal direction with respect to the width direction from a second material roll R2 formed by winding the second optical film F21 in such a manner that an absorption axis B2 extends in the width direction, and then the second optical film F21 is cut and bonded to the other surface of the liquid crystal cell. Accordingly, it is possible to bond the first optical film F11 and the second optical film F21 in the crossed nicols relation, without the provision of the mechanism for rotating the liquid crystal cell W or the like.

An imaging method for microcalcification displays microcalcification distribution by acquiring and overlapping a photoacoustic image of microcalcification and an ultrasonic image of tissue. The image acquired by the present invention, in comparison to images acquired by ultrasonic and X-ray mammography, has advantages in no speckle noises, higher optical contrast, higher ultrasonic resolution, and so on. The present invention also has advantage in safety by adopting a light source having no ionizing radiation. An imaging method for diagnosing breast cancer is also herein disclosed.

A solution for optical detection of the eye. Molecular markers are used for high-contrast diagnosis of eye diseases, other diseases, and other vital parameters which can be diagnosed in the eye. For optical detection of the eye, a molecular marker with spectral characteristics of absorption and / or scattering in the visual and infrared spectral region is introduced into the eye and bound to a specific target. The interaction of the molecular marker with the target is detected by means of optical imaging methods, such as fundus photography, confocal laser microscopy, polarisation-optical imaging methods, holographic methods or especially OCT methods. The use of optical methods is strongly preferred for the diagnosis of the eye as a result of the high transparency of the optical system of the eye compared to other body parts.

A method is disclosed for quantifying the extent a cataract impairs vision in an eye having a pupil, an ocular lens, and a retina. The method includes illuminating a localized region of the retina such that light is reflected from the localized region and is transmitted through the ocular lens. A portion of the reflected light is scattered by the cataract associated with the ocular lens. Light reflected from the localized region of the retina is collected, and the amount of scatter is measured so as to quantify the extent the scatter impairs vision of the eye.

A light-emitting device (52) suitable for a flat-panel cathode-ray tube display contains a light-emissive region (66) formed over a plate (64). The light-emissive region contains a plurality of light-emissive particles (72). Part of the outer surface of each of a group of the light-emissive particles is conformally covered with a group of intensity-enhancement coatings (82 and 84).

A method and apparatus for calibrating a metrology tool are disclosed. The method includes measuring a parameter of a contrast enhanced feature on an artifact using a metrology tool, where the contrast enhanced feature reduces random errors in the metrology tool during the measuring process. The measured parameter is compared with an initial parameter associated with the artifact and the metrology tool is adjusted until the measured parameter matches the initial parameter.

The invention provides a polymer thin film based on cross structure conjugated molecules. According to a preparation method, in a three-electrode system, ITO glass is taken as a working electrode, a platinum wire electrode is taken as an auxiliary electrode, an Ag / AgCl electrode is taken as a reference electrode, a polymer monomer and a supporting electrolyte are dissolved in an electrodissolvent to prepare a mixed solution as an electrolyte, and electrochemical polymerization is carried out so as to obtain the polymer thin film based on the cross structure conjugated molecules. The polymer thin film can be applied in electrochromic devices as an electrochromism active material; compared with D-A type polymers based on linear structure conjugated molecules reported in the prior art, the polymer thin film possesses advantages such as higher response speed, higher optical contrast ratio, and more stable electrochemical activity, can be used for preparing parts via electrochemistry film forming, and can be applied in the fields such as flexible displays, energy-saving windows, and automobile rearview mirrors.

Provided are an optical display device manufacturing system and a method for manufacturing an optical display device which can bond optical films to both surfaces of a liquid crystal cell in good condition with a simpler constitution. A first optical film F11 is fed in an orthogonal direction with respect to the width direction from a first material roll R1 formed by winding the first optical film F11 in such a manner that an absorption axis B1 extends in the orthogonal direction, and then the first optical film F11 is cut and bonded to one surface of a liquid crystal cell. A second optical film F21 is fed in an orthogonal direction with respect to the width direction from a second material roll R2 formed by winding the second optical film F21 in such a manner that an absorption axis B2 extends in the width direction, and then the second optical film F21 is cut and bonded to the other surface of the liquid crystal cell. Accordingly, it is possible to bond the first optical film F11 and the second optical film F21 in the crossed nicols relation, without the provision of the mechanism for rotating the liquid crystal cell W or the like.

The invention discloses an imidazole type ionic liquid modified triphenylamine derivative represented by a formula (I) and a preparation method thereof, and application of the triphenylamine derivative in the preparation of an electrochromic film as a polymerization monomer. The film obtained by the polymerization of the material synthesized by the method can be applied to the field of electrochromism. The film has a faster response time than an ionic liquid material, and is an electrochromic material with excellent performance. The formula (I) is in the description below.

The invention provides a monolithic integration method for a grating optical modulator and an active matrix drive circuit, which is combined with the processing technique of monolithic integration of an MEMS device and a CMOS circuit, utilizes the CMOS circuit to process the active matrix drive circuit at first and then utilizes the low-temperature micromechanical manufacturing technique to obtain the MEMS grating optical modulator, so as to realize monolithic integration of the MEMS grating optical modulator which is formed by upper movable gratings supported on lower electrodes and the lower active matrix drive circuit. The grating optical modulator processed by the technique can project and display with high definition and high resolution.

The invention relates to a black-display multilayer polymer film. The film is prepared by the following methods: firstly, electrodepositing a layer of red polymer film in a monomer solution (I) by using an in-situ electrochemical polymerization method; secondly, continuing to electrodeposit a layer of green polymer film in a monomer solution (II) by using a cyclic volt-ampere polymerization method; and finally, electrodepositing a layer of blue polymer film in a monomer solution (III) by using the cyclic volt-ampere polymerization method, thereby finally obtaining the multilayer polymer film.The invention further provides a preparation method for the black-display multilayer polymer film and an application of the black-display multilayer polymer film. The method is simpler and more controllable, and compared with the existing materials, the prepared black-display polymer electrochromic material has the advantage that more excellent electrochromic performance is shown.

The present invention pertains to utilizing a salicide in establishing alignment marks in semiconductor fabrication. A metal layer is formed over exposed portions of a silicon substrate as well as oxide areas formed over bitlines buried within the substrate. The metal layer is treated to react with the exposed portions of the silicon substrate to form salicided areas. The metal layer does not, however, react with the oxide areas. As such, salicided areas are formed adjacent to the oxide areas to provide an enhanced optical contrast when light is shined there-upon. In this manner, the alignment marks can be more readily “seen”. The enhanced optical contrast thus allows the marks to continue to be seen as scaling occurs.

The invention relates to a WORM compact disc based on copper nitride film and a manufacture method of the WORM compact disc. The compact disc mainly includes four layers, i.e. a substrate, a recording layer, an absorption layer and a protection layer, wherein the substrate as the first layer of the disc servers as the carrier of other parts of the compact disc and also is the physical case of the entire disc; the recording layer as the second layer of the disc is used for recording signals during burning, and a copper nitride film prepared by magnetron sputtering method serves as a disposable optical storage medium, which can form signals of 0 and 1 based on the reflectivity change while reading signals with different lengths due to the difference in reflectivity before and after burning, thereby to read information; the absorption layer as the third layer of the disc is used for absorbing excessive IR rays penetrating the recording layer; and the protection layer as the fourth layer of the disc is used for protecting the absorption layer and the recording layer in the disc to prevent data corruption.

The invention discloses a high-performance all-solid-state polymer electrochromic device and a preparation method thereof. The high-performance all-solid-state polymer electrochromic device structurally comprises the following components in sequence: a transparent conductive electrode I, an electrochromic layer, an electrolyte layer, an ion storage layer, and a transparent conductive electrode II.As a PANI film is used as the electrochromic layer, PEDOT:PSS is used as the ion storage layer, and colors of both the two polymer materials change from transparent to dark when voltage is applied, ahigh optical contrast and fast response all-solid-state polymer electrochromic device is obtained. The all-solid-state polymer electrochromic device has application potential in the fields of smart glasses and anti-glare rearview mirrors. In addition, the operation process is simple, the raw material cost is low, the preparation process is safe and pollution-free, and the requirements of green production and the ecological concept of protecting the environment are met.

The invention relates to a 2,3,8,9,14,15-hexa(4-diphenylaminophenyl)-hexa-aza-naphthalene (DTPA-HATN) organic small molecule having a triphenylamine-naphthalene heterocyclic structure and a preparation method thereof, and provides an electrochemical polymerization preparation method of a poly[2,3,8,9,14,15-hexa(4-diphenylaminophenyl)-hexa-aza-naphthalene] polymer film with high contrast (as most as 60%) and good cycling stability. The invention provides an application of the poly[2,3,8,9,14,15-hexa(4-diphenylaminophenyl)-hexa-aza-naphthalene] polymer film as an electrochromic material. According to the invention, electrochemical polymerization preparation is realized, and application in the field of electrochromism is realized.

The invention discloses an electrochromic polymer containing a carbazole structure and a preparation method, a polymer film and application. The electrochromic polymer is a donor receptor type solubleelectrochromic polymer and can be dissolved in organic solvents such as chloroform, tetrahydrofuran and methylbenzene; the electrochromic polymer is dissolved in an organic solvent and sprayed on thesurface of a conductive material to form a film capable of realizing reversible color change; the film has the characteristics of low driving potential, obvious discoloration, good stability, solution treatment and the like, and can be used in electrochromic devices; the preparation method is suitable for large-scale production, and the electrochromic polymer with excellent performance can be prepared.

A one-off blue-light storage inorganic medium and a manufacturing method thereof are provided. The one-off blue-light storage inorganic medium is a Sb-Sb2O3-SiO2 composite thin film which is prepared on a substrate by stibium Sb and silicon Si through a reactive magnetron sputtering method, and which comprises three components of Sb, Sb2O3 and SiO2, wherein the mol percent of Sb is 10%-70%, the mol percent of Sb2O3 is 10%-40%, the mol percent of SiO2 is 20%-80%. The blue-light storage inorganic medium of the invention prepared by the reactive magnetron sputtering method has a high optical contrast and stability before and after layer action.

The invention discloses a viologen derivative electrochromic and electrofluorescent discoloration bifunctional material as well as a preparation method and application thereof. The preparation method comprises the following steps: by taking 4, 4 '-dipyridyl as a raw material, carrying out nucleophilic substitution reaction on the 4, 4'-dipyridyl and 1-chloro-2, 4-dinitrobenzene to generate Zincke salt; carrying out nucleophilic substitution reaction on p-fluoronitrobenzene and a nitrogen-containing aromatic heterocyclic ring to generate a nitro compound, and reducing the nitro compound into an amino compound by using hydrazine hydrate as a reducing agent; and performing Zincke reaction on products of the two-step reaction to generate a target product. According to the invention, a benzimidazole group with an electron donating effect is introduced into a viologen derivative, and forms an electron donating-electron withdrawing effect with an electron-deficient bipyridine group, so that the color change voltage is reduced, and the optical contrast is improved; meanwhile, an electrofluorescence discoloration function is introduced into the viologen derivative.

The invention relates to an electrochromic film and a preparation method thereof. The electrochromic film is prepared by adopting poly (3, 4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT: PSS) and polyethylene oxide (PEO) through a simple solution blending method. The electrochromic film has the beneficial effects that abundant paths can be provided for ion transport to PEDOT molecular chains by means of the PEO, so that the ion transport capacity of the PEO / PEDOT: PSS blended film disclosed by the invention is improved; by combining with the electronic conductivity of the PEDOT: PSSper se, the PEO / PEDOT: PSS blended film has a good ion-electron mixed conductive property; and the electrochromic reaction capability and the optical contrast of the PEDOT: PSS film are increased bymeans of the PEO / PEDOT: PSS ion-electron mixed conductive blended film. The preparation method has the beneficial effects of low requirements on equipment, low production cost, energy saving and environmental protection and can be used for the research and development and the production of related electrochromic products.

The embodiment of the invention discloses a simple paste for measuring the surface deformation of a material and a production method thereof. The method comprises the following steps of: providing a substrate; sticking an adhesive tape with a coarse surface onto the substrate; forming a reflecting layer on the adhesive tape, wherein the surface of the reflecting layer and the surface of the adhesive tape have high optical contrast ratios; forming graphs of grids, dot matrixes or grid lines on the adhesive tape by adopting a photoetching process; and separating the adhesive tape from the substrate, thus the simple paste for measuring the surface deformation of the material is obtained. In the embodiment of the invention, the grids, dot matrixes or grid lines with the diameter in micron or millimetre can be obtained by adopting the photoetching process, thus the dimension of a final grid / dot matrix can meet the requirements of a CCD (charge coupled device) camera and an automatic grid method to small-dimension grids / dot matrixes. Meanwhile, the characteristics of an ultraviolet photoetching technology cause the produced grids, dot matrixes or grid lines to be regular and uniform, the production technology is mature and simple, and the production period is short.

The invention discloses a method for optimizing the photoetching registration accuracy of an emitting electrode of silicon germanium HBT ((heterojunction bipolar transistor). A photoetching registration mark and an overlaying accuracy measuring mark OVL mark of an opening layer of the emitting electrode are both placed in a field area. The process procedure includes that an active area photoetches and produces a substrate area of the registration mark and the overlaying accuracy measuring mark OVL mark of an opening of the emitting electrode; a substrate consisting of a SiO2 material of the registration mark and the overlaying accuracy measuring mark OVL mark of the opening of the emitting electrode is formed by depositing of SiO2 deposits and the CMP(chemical mechanical planarization); a base area BP is etched in front of the opening of the emitting electrode, and an opening film layer of the emitting electrode deposits after the base area BP etching; and wet etching is added after the photoetching of the opening of the emitting electrode. By the aid of the method, optical contract can be greatly strengthened, and errors and instability of optical alignment accuracy measurement caused by insufficient signal intensity are avoided.