60results about How to "Improve spatial uniformity" patented technology

A burner, in particular for a gas turbine, in which combustion air is subjected to a vorticity by a vortex element, admits fuel to the vortical combustion air. At the same time, a pressure loss produced by the vortex element is small. A low NO.sub.x emission at virtually the same efficiency is achieved.

A metal halide lamp (10) includes a light-transmissive envelope (12) which encloses a metal halide pool (30) for generating a discharge when spaced apart electrodes (20, 22) within the envelope are supplied with an electric current. A multi-layer coating (40) is deposited on a surface (42) of the envelope. The coating includes several layers of at least two materials of different refractive index, which, in combination, reflect radiation in the UV region of the electromagnetic spectrum. Rather than optimizing the coating for a normal (i.e., 0°) angle of incidence on the coating, the multi-layer coating is optimized at an angle which is selected to be within 10° of the mean angle (α) of incidence of the UV radiation on the arctube surface, thereby increasing the amount of UV radiation which is returned to the metal halide pool. The coating is preferably optimized for high reflectivity in the UV-region of the spectrum and high transmission in the visible region of the spectrum to maximize useful light output while reflecting UV light back to the metal halide pool for improved heating of the pool.

A method extends the use of phase shift techniques to complex layouts, and includes identifying a pattern, and automatically mapping the phase shifting regions for implementation of such features. The pattern includes small features having a dimension smaller than a first particular feature size, and at least one relatively large feature, the at least one relatively large feature and another feature in the pattern having respective sides separated by a narrow space. Phase shift regions are laid out including a first set of phase shift regions to define said small features, and a second set of phase shift regions to assist definition of said side of said relatively large feature. An opaque feature is used to define the relatively large feature, and a phase shift region in the second set is a sub-resolution window inside the perimeter of the opaque feature.

A plasma reformer includes a first electrode, a second electrode, an insulating member, an atomizing device and a power supply. A discharge gap is defined between the first electrode and the second electrode. The insulating member is arranged between the first electrode and the second electrode to insulating the first electrode and the second electrode, and a vortex gas flow route is formed between the insulating member and the first electrode, the second electrode. The second electrode penetrates the insulating member. The atomizing device is arranged on the first electrode and/or the second electrode. The power supply is connected with the first electrode and the second electrode.

The invention relates to a burner (1), for the combustion of a low-calorific fuel gas (SG), with an air channel (2), running along a burner axis (12), for the introduction of combustion air (10) and a fuel gas channel (26), embodied for a high volumetric flow of low-calorific fuel gas (SG), whereby the fuel gas channel (26) and the air channel (2) open out into a mixing region (27). According to the invention, a low-nitrogen oxide synthesis gas operation of the burner (1) may be achieved, whereby a swirl element (4) is arranged in the air channel (2) for the generation of turbulent combustion air (10). The swirling element is provided in an opening region (28) directly adjacent to the flow of the mixing region (27). The invention further relates to a method of operation of a synthesis gas burner (1), whereby, directly before the mixing of the synthesis gas (SG) with the combustion air (10), the level of turbulence of the mass air flow is significantly increased on the microscopic level and a temporally and spatially homogenous mixing of the synthesis gas/air mixture is achieved.

The invention discloses a chip-grade LED (Light Emitting Diode) packaging device with a controllable light emitting angle and a packaging process. According to the LED packaging device, first white wall adhesive layers are arranged on side faces of an LED chip, a diffusion layer and a fluorescent adhesive layer and are used as reflection surfaces; the reflection surfaces with different shapes can be designed aiming at requirements on different light emitting angles, so that the LED packaging device with the controllable light emitting angle is obtained; furthermore, the diffusion layer is arranged between the LED chip and the fluorescent adhesive layer, and the diffusion layer has a refractive index higher than that of a fluorescent adhesive; the difference between the refractive indexes of the LED chip and the fluorescent adhesive layer is reduced; the refractive indexes of the LED chip, the diffusion layer and the fluorescent adhesive layer have a certain gradient and the light emitting efficiency of the LED chip is improved, so that the luminous flux of the device is improved; the refractive indexes of diffusion powder and a packaging adhesive in the diffusion layer are different, and the condition that light emission of blue light of the LED chip is not uniform can be improved, so that the space color uniformity of the device is improved; and the design of a concave groove and white wall structure is adopted, so that the reliability problem of a product is greatly improved.

A waveguide (1), arranged to guide light from at least one light source (3), comprising an outcoupling structure (4) adapted to enable outcoupling of said light from said waveguide in a general outcoupling direction, and at least one guiding edge (5) adapted to contain said light in said waveguide by reflecting said light on its way towards said outcoupling structure, wherein the outcoupling structure comprises an asymmetrically diffusing layer (6; 7). Such asymmetric diffusion improves the color mixing, and removes or limits the occurrence of color bands or intensity bands, while limiting the divergence in the direction where no color mixing or intensity variation problems exist.

The invention discloses a polycrystalline silicon production device which comprises a polycrystalline silicon curing and receiving container and a microwave surface wave plasma torch, wherein the polycrystalline silicon curing and receiving container is used for receiving polycrystalline silicon produced by the microwave surface wave plasma torch. The invention also discloses a polycrystalline silicon production method which comprises the following steps of: with SiHC13 steam and H2 gas as raw material reactants, discharging electricity to the raw material reactants through the microwave surface wave plasma torch so as to heat the raw material reactants in a dielectric tube, and cooling and curing produced silicon in the polycrystalline silicon curing and receiving container to obtain polycrystalline silicon.

The present invention relates to an HPHT method for synthesizing single crystal diamond, wherein a single crystal diamond seed having an aspect ratio of at least 1.5 is utilized. Single crystal diamond seeds having an aspect ration of at least 1.5 and synthetic single crystal diamond which may be obtained by the method recited are also described, wherein the longest dimension of the growth surface substantially aligned along a <100> or <110> direction in the plane of the growth surface.

A method for configuring J electromagnetic radiation sources (J≧2) to serially irradiate a substrate. Each source has a different function of wavelength and angular distribution of emitted radiation. The substrate includes a base layer and I stacks (I≧2; J≦I) thereon. P_j denotes a same source-specific normally incident energy flux on each stack from source j. In each of I independent exposure steps, the I stacks are concurrently exposed to radiation from the J sources. V_i and S_i respectively denote an actual and target energy flux transmitted into the substrate via stack i in exposure step i (i=1, . . . , I). t(i) and P_t(i) are computed such that: V_i is maximal through deployment of source t(i) as compared with deployment of any other source for i=1, . . . , I; and an error E being a function of |V₁−S₁|, |V₂−S₂|, . . . , |V_I−S_I| is about minimized with respect to P_i (i=1, . . . , I).

The invention discloses a method for accurately recovering an original image of a digital image after color correction, and the method comprises the steps: generating a color thumbnail matrix based on K-means clustering according to the original image and the image after color correction, training a nonlinear model of a least square support vector machine, and estimating an error compensation matrix for an image saturation region; obtaining an image recovery model and embedding the image recovery model into the image; and when the original image needs to be restored, extracting model parameters from the image embedded with the restoration model to perform transformation processing, and accurately restoring to obtain the original image. According to the method provided by the invention, after the digital image is subjected to color correction or some nonlinear processing, even if partial pixel color component values exceed a gray scale range to cause truncation and saturation, the original image color can still be effectively and accurately recovered. The method provided by the invention is beneficial to good color traceability of the digital image in the transmission and copying process, and can be effectively applied to accurate readjustment of image color display and reediting after image color correction in the printing and copying process.

Compact systems with reduced insertion loss, and increased switch isolation and switching speed. The switching and/or routing devices utilize a separating sub-system, a switching and/or routing sub-system, and a recombining sub-system.

One embodiment provides light along an optical axis. It comprises a substrate and at least one array of multiple LED chips without individual packaging supported by the substrate. The LED chips emit light within different wavelength ranges and are distributed laterally with respect to the axis over an area, the LED chips having light emitting surfaces for emitting light in directions transverse to the area. An optical element adjacent to the light emitting surfaces of the LED chips in the at least one array collects and directs light emitted by the LED chips of the at least one array along the axis towards a target. Another embodiment is directed to a method for providing multiple wavelength light for fluorescent microscopy using the above system. Electric current is supplied to the multiple LED chips, causing them to emit light of multiple wavelengths. The currents supplied to the multiple LED chips are controlled so as to control the exposure of fluorescent dyes with different excitation wavelengths wherein the light emitted by the multiple LED chips include wavelength components at such different excitation wavelengths without having to move the multiple LED chips.

A mask, a method for creating a mask, and a method for irradiating a substrate through use of the mask. Creating the mask establishes the mask by designing the mask, forming the mask, or both designing and forming the mask. Creating the mask includes receiving a specified target transmittance (T_S) of the substrate with respect to radiation propagated from a radiation source and transmitted through the mask with spatial selectivity in accordance with a spatially varying transmissivity (T_M) of the mask with respect to the radiation. The mask is disposed between the radiation source and the substrate. The mask includes transparent portions and reflective portions distributed within the transparent portions. The first radiation after having passed through the mask is transmitted into the substrate in accordance with a spatially varying reflectance (R) of the substrate such that T_M*(1−R) is about equal to T_S.

The invention provides a radio energy transmission multi-directional transmitting three-dimensional coil and a radio energy transmission system. The transmitting three-dimensional coil comprises: a three-dimensional skeleton, wherein three-dimensional skeleton is a three-dimensional structure with iron cores as the edges and the non-magnetic conductive material as the vertex and is used as a bearing mechanism of the transmitting three-dimensional coil. A transmitting coil is wound around each edge of the three-dimensional skeleton for converting electrical energy into electromagnetic energy for radio energy transmission. The 3D stereoscopic structure is adopt, so that the need for multiple loads at different locations to be powered simultaneously when a single power supply is used can be met, and the requirement of high degree of freedom movement of a receiving device is satisfied. Further, the degree of freedom and flexibility of the radio energy transmission system are improved, thespatial uniformity of the magnetic field of the transmission system is improved, the dependence of the receiving system on the transmitting system is reduced, and the stable electric energy transmission of the single-source and multi-load system and the receiving device at any spatial position is realized, so that the transmission efficiency and the transmission stability of the radio energy transmission are improved.

A skin surface is treated with bipolar RF energy. A first semiconductive cap disposed on a first distal end of a first electrode and a second semiconductive cap disposed on a second distal end of a second electrode are applied to the skin surface. RF energy is delivered from the first electrode and the second electrode through the first semiconductive cap and the second semiconductive cap, respectively, through the skin surface. A thickness of each semiconductive cap between a blunt skin contacting surface and a curved surface affixed to a respective electrode is thicker at an inner portion and thinner at a center portion to homogenize the electrical field at the skin surface.