37results about How to "Improve edge sharpness" patented technology

An imaging system, methodology, and various applications are provided to facilitate optical imaging performance. The system contains a sensor having one or more receptors and an image transfer medium to scale the sensor and receptors in accordance with resolvable characteristics of the medium, and as defined with certain ratios. Also provided are digital images that contain a plurality of image pixels, each image pixel containing information from about one sensor pixel, each sensor pixel containing substantially all information from about one associated diffraction limited spot in an object plane. Methods of making digital images are provided.

A sharpener for creating cross-grind knife edges includes a nominally flat annular abrasive sharpening member which could be a ring or a disk and is rotated about its center and held against a moving knife edge facet to simultaneously and sequentially abrade the knife edge at multiple locations on the abrasive member. The disk may be slidably mounted on a shaft in opposition to a spring restraining force. The disk is nominally disposed in a vertical orientation. The sharpener may include multiple stages including a manual stage having a pair of off axis conical shaped rotatable abrasive coated disks which have abrading lines on opposing facets which are not parallel but cross and intersect in a crossing pattern at the blade edge.

A direct-write electron beam lithography system employing a patterned beam-defining aperture to enable the generation of high current-density shaped beams without the need for multiple beam-shaping apertures, lenses and deflectors is disclosed. Beam blanking is accomplished without the need for an intermediate crossover between the electron source and the wafer being patterned by means of a double-deflection blanker, which also facilitates proximity effect correction. A simple type of “moving lens” is utilized to eliminate off-axis aberrations in the shaped beam. A method for designing the patterned beam-defining aperture is also disclosed.

The invention relates to a disulfide single crystal and a preparation method and application thereof. The preparation method comprises: (1) placing a sulfur group elementary substance source and a transition metal oxide source doped with sodium chloride at positions in a tubular furnace with a heater at the middle, wherein the distances between the positions and a gas inlet of the tubular furnaceare respectively 25-35% and 45-55% the total length of the tubular furnace and placing a growth matrix above the transition metal oxide source, and (2) feeding protective gas into the tubular furnace,heating the tubular furnace to a chemical vapor deposition temperature and carrying out chemical vapor deposition. The preparation method can produce disulfide single crystals with high crystallization quality and an oversized domain size. The disulfide single crystal can be used for any one or at least two of nanodevices, optical devices and on-chip lasers.

The invention relates to an image scaling method of margin self-adapting treatment, in particular to cubic spline interpolation algorithm. The technique problem needed to be resolved by the invention is to provide a self-adapting interpolation method based on cubic spline function with smooth image and clear outline after being interpolated. The technical scheme comprises detecting the position of interpolation points first and employing different treatment methods to interpolate to the interpolation points located at different positions. The invention adds edge sharpness, and simultaneously effectively eliminates problems that continuous feedbacks pixels on the bilateral sides of the image edge interfering with each other cause virtual images on bilateral sides of the edge in original cubic spline interpolation algorithm on the basis of guaranteeing image gliding property. Simultaneously, the invention employs the same operational formula to calculate all interpolation points, which enables the invention to be simple to realize, and is equal to the complexity of realizing common cubic spline function interpolation algorithm.

A method and apparatus for video sample interpolation with edge sharpening, whereby edge sharpness can be essentially preserved and / or enhanced in the interpolated image. Image interpolation for an original two dimensional image is conducted along the horizontal and vertical directions separately using a 1D digital filter. In interpolating a new sample in the image, the digital filter is first used to obtain a temporary interpolation value for the new sample. Then, an appropriate amount of edge enhancement is calculated for the new sample location. The enhancement value is combined with the temporary interpolation value to result in a final interpolation value for the new sample.

The invention discloses a machining method and a machining device of a cobalt-base superalloy thin-walled sleeve part, and belongs to the technical field of machining. The machining device provided bythe invention comprises a clamp assembly and a mandrel. A workpiece is supported through the clamp assembly and the mandrel, the internal cylindrical surface and the external cylindrical surface of apipeline billet are machined, in the machining process, the pipeline billet is not prone to deformation, the machined workpiece inner and outer diameter wall thickness difference is small, the shapeprecision is high, and the workpiece surface roughness is high.

The invention discloses a laser coating device and a method based on a transparent material, belonging to the field of micro-machining. The device comprises a computer, a laser which is connected with the computer, a laser control system which is installed on the laser, a workstation, a transparent material plate, a target and a flat plate, wherein the laser is connected with the computer, the workstation is arranged below the laser control system, and the transparent material, the target and the flat plate are arranged on the workstation from top to bottom in sequence. When in coating, the target is arranged at the lower surface of the transparent material plate, the laser penetrates the transparent material from the upper surface and then illuminates on the target, and then the target is heated, melted and sputtered onto a close transparent substrate, later high calorie leads the transparent substrate to generate micro-melting, and thus causing a coating layer to be formed on the transparent material. The device has the advantages of simpleness, low cost, high precision and good controllability, and can coat a film with micron-level or nano-level thickness on the surface of the transparent material, wherein the film has good edge sharpness and the shape of the film can be controlled by the computer output.

The invention relates to the field of optical lighting, and discloses a lighting system based on strip-shaped faculae. The lighting system comprises a strip-shaped Fresnel lens, a reflection unit, an incidence unit and a light source; the strip-shaped Fresnel lens is of a semi-cylindrical barrel face structure; the incidence unit is located at the center position of the bottom of the strip-shaped Fresnel lens and comprises a saddle-shaped incidence face, a first semicircular hook face incidence face and a second semicircular hook face incidence face; the reflection unit comprises a first total reflection hook face and a second total reflection hook face; the light source is located in the center of the bottom of the incidence unit; and the Fresnel lens is connected with the incidence unit through the first total reflection hook face and the second total reflection hook face. The lighting system has the beneficial effects that strip line faculae generated by the lighting system are thin and narrow in distribution and good in edge acutance; light strips are evenly distributed and suitable for indoor and outdoor decoration lighting sites; excellent strip line light can be combined into various face-distribution lighting effect, and a wide application prospect is achieved.

The method includes following step: decomposing one frame of mask pattern in high frequency into m frames of mask pattern in low frequency without changing size; superposing m frames of mask pattern in low frequency, and superposed gray value is equal to original mask pattern in high frequency at same position; exposing m frames of mask pattern in sequence, and time of exposure for each frame is 1 / m of original time of exposure; thus, original mask pattern in high frequency is recovered. Advantages are: (1) reducing influence on photo etching exposure caused by lowpass filtering characteristic of final minification projection lens, reducing high frequency loss to lower than 0.1%, improving edge sharpness, improving resolution of spatial light modulator electrical addressed; (2) solving alignment difficulty; (3) reducing difficulty for preparing mask pattern; (4) easy to select linearity range of exposure.

The invention discloses a nonlinear filtering method for underwater navigation, and is used to solve a weak solution from a random differential model of underwater terrain navigation. According to the invention, segmental approach to a weak solution of a navigation random differential model is performed by using a cubic spline interpolation function so as to obtain a prior probability density function of a state, wherein difficult problems for constructing a cubic spline interpolation point are solved by using a forward Kolmogorov equation, and a posterior probability density function of the state is obtained by a Bayes formula. The method of the invention makes full use of the cubic spline interpolation, has the characteristics of simple calculation, good stability, guaranteed convergence, easy realization on computers, and guaranteed smoothness of a whole curve, can track various possibility of the system state better, has extremely high estimation accuracy, convergence speed, and convergence smoothness, and can track the change of the system state well.

A reflective airy ring diffraction grating has a laminated structure and sequentially comprises a substrate layer (2), a metal reflective film layer (3), a semipermeable and semireflective film layer (4) and an antireflection film layer (1) from the top down, wherein the metal reflective film layer is formed by splicing two paired different metal reflective film layers (5 and 6) one by one at intervals in circular and coaxial annular ways; and the refractive index of the semipermeable and semireflective film layer is between the refractive indexes of the two paired metal reflective film layers. The reflective airy ring diffraction grating improves the light intensity uniformity and the boundary sharpness of a focal plane by changing the amplitude and the phase distribution of incident light, is applied to laser operation, laser precise processing and laser irradiation, has very obvious effects of improving the operation precision, the processing precision and the irradiation uniformity, and solves the problem that the precision and the uniformity are poor because a matched grating is not adopted in the fields over the years.

The invention relates to a method for planning the irradiation of a moving target volume arranged in a body by means of a rescanning process using a particle irradiation system. The method has the steps of determining the target volume in a reference state of the movement, dividing the target volume into a plurality of target points which can be individually struck with a particle beam, calculating a target dose to be deposited at each of the target points of the target volume, determining a number of rescan passes in which each of the target points of the target volume is struck, calculating an expected average movement of the target points of the target volume using a movement model, taking into consideration the expected average movement of the target points of the target volume while planning the irradiation such that the deviation of the expected dose deposit from the target dose is detected for each target point and the target dose is corrected for each target point on the basis of the deviation, and generating control parameters for the irradiation system, said control parameters comprising a particle number to be applied per target point and rescan pass.

A charged particle beam lithography system and / or method, which comprises a patterned beam defining aperture (212) for generating a high current density shaped beams (222) without the need for multiple beam shaping apertures, lenses (205, 216) for focusing charged particle beams (222) on a wafer (221), and blanking deflectors (277, 278) for deflecting the charged particle beams (222) without the need for an intermediate crossover between an electron source (201) and the wafer (221).

A motion-oriented image compensating method is disclosed. The method uses the pixel luminance of a present image data and a last image data to judge the minimum motion vector in X-axis and the minimum motion vector in Y-axis of the present image data, following by conducting luminance compensation of the pixels according to the above-mentioned two minimum motion vectors to advance the sharpness of image edges and thereby the image quality.

The inks provide excellent ink-jet prints having excellent imaging onto the media with sharp, smooth edge text print and overall print quality improvements. The aqueous inks each comprise an anionic colorant (CMYK), a short chain alcohol or diol and a cationic surfactant.

A method of and apparatus for edge enhancement considering singular points are provided. The method of edge enhancement includes: determining a first gain from the input image; detecting a singular point distinguishable from an edge from among pixels of the input image; based on the detection result of singular points, determining a second gain for edge enhancement processing; and multiplying the first gain by the second gain to generate a resulting edge-enhanced image.

The invention relates to an image processing method and device, and a readable storage medium. The method comprises the steps of obtaining a plurality of to-be-processed sequence images; wherein the plurality of sequence images are acquired by the image acquisition equipment in the moving process, and the image acquisition equipment has a pre-calibrated first parameter; according to the first parameter, determining a first coordinate corresponding to the feature point in each sequence image; when it is determined that the feature points are not located on the same plane according to the firstcoordinates, adjusting the calibration parameters of the sequence images from the first parameters to the second parameters; according to the second parameter, determining a second coordinate corresponding to the feature point in each sequence image; and under the condition of determining that the feature points are located on the same plane according to the second coordinates, performing splicingprocessing on the plurality of sequence images to obtain a spliced image. According to the image processing method provided by the embodiment of the invention, the distortion degree of the spliced image can be effectively reduced.

A nozzle arrangement applies fluids, in particular thermoplastic adhesives, to a substrate. The nozzle arrangement and the substrate move relative to one another in a first direction. The nozzle arrangement has a main body which is exchangeably connected to a mounting region of a distributor and which has an end-side side surface extending in a second direction running at least substantially perpendicular to the first direction. The end-side side surface of the main body can have mutually adjacently arranged first outlet nozzles for the fluid to be applied formed in a first row extending along the second direction and mutually adjacently arranged second outlet nozzles for a second fluid formed in a second row extending along the second direction and that is parallel to the first row.

A method for painting a work piece of plastic material. The method includes applying a first coating of an electrically conductive material to the work piece and electrically grounding the first coating. The method also includes electrostatically charging a paint to render the paint conductive for statically attracting the conductive paint toward the grounded first coating of the work piece. The method also includes overlying a mask of a non-conductive material over at least a portion of the first coating of the work piece and electrically insulating the mask. The work piece is then sprayed with the conductive paint to apply a layer of paint on the first coating with the mask preventing the conductive paint from being applied on the portions of the first coating of the work piece that are covered by the mask.

A scanning system uses a multi-beam brush having a widely separated beams, a modulator that controls intensity of pixels in scan beams, an optical system that minimizes scan line bow at the expense of non-uniform scanning beam velocity, and a timing generator that generates a pixel clock signal having a variable period that compensates for the non-uniformity of pixel velocity. The wide separation of scan beams permits the modulator to turn beams on or off with a direction of brightening or darkening in the cross-section of the beams being opposite to the scanning direction. A novel arrangement of the beams in the brush permits a uniform indexing step size to uniformly expose an image region. In one embodiment, the timing generator includes: a source of pixel period values; a select circuit to select pixel period values for pixels, and a counter that loads a first value from the pixel period value selected for a pixel, counts for a period of time indicated by the first value, and asserts a signal marking an end of the period. An additional delay after the signal from the counter can be shorter than the period of a clock signal to the counter but also controlled by the pixel period value.