59results 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 (X_o,Y_o,Z_o) 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.

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.

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 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).

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.

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 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.