264results about How to "Increase radiation intensity" patented technology

The Smith Purcell effect, in which a beam of electrons passes close to a conducting grating and induces electromagnetic radiation from the grating surface, can be used as a source of THz radiation. A grating composed of negative index metamaterial (NIM) enhances the output of the Smith Purcell source. Of particular interest is the use of a NIM grating in a Smith-Purcell source to provide a tunable coherent CW source of terahertz (THz) radiation.

A lighting device (40-40″, 45-45″, 50-50″, 60, 80, 93-93″) is provided for the uniform illumination of curved, uneven, or polyhedral surfaces. The lighting device has a plurality of flat chip-on-board LED modules (1, 11, 11′, 21, 31, 41-41″, 46-46″, 51-51″, 61-61″, 71-71′″, 81¹-81⁸), which are arranged adjacent to each other at least in pairs. Each chip-on-board LED module (1, 11, 11′, 21, 31, 41-41″, 46-46″, 51-51″, 61-61″, 71-81¹-81⁸) has a plurality of light-emitting LEDs (4, 4′, 14, 14′, 24, 34, 64, 72). The lighting device (40-40″, 45-45″, 50-50″, 60, 80, 93-93″) is characterized by at least one pair of the adjacent chip-on-board LED modules (1, 11, 11′, 21, 31, 41-41″, 46-46″, 51-51″, 61-61″, 71-71′″, 81¹-81⁸) being arranged at an angle greater than 0° with respect to the surface normals of the modules.

A method is proposed for coating an optoelectronic chip-on-board module including a flat substrate populated with one or more optoelectronic components having at least one primary optical arrangement and optionally at least one secondary optical arrangement. The optoelectronic chip-on-board module is coated with a transparent, UV-resistant, and temperature-resistant coating made of silicone by the following steps: (a) casting a liquid silicone into a mold open towards the top and having outer dimensions corresponding to or exceeding outer dimensions of the substrate; (b) inserting the substrate into the mold, wherein the optoelectronic component(s) are immersed completely into the silicone and a surface of the substrate contacts the silicone completely or the substrate immerses into the silicone at least partially with full surface contact; (c) curing and cross-linking the silicone with the optoelectronic component(s) and the substrate; and (d) removing the substrate from the mold with the coating of cured silicone.

The invention relates to a UV radiation device for the treatment of fluids, in particular water or waste water. The device includes a radiation chamber through which the fluid can flow in one direction. The radiation chamber essentially comprises a rectangular cross-section and is bordered by two side walls as well as a base wall and a ceiling wall. The side walls and the base wall comprise a non-metallic material. Additionally, a number of lamp units are provided. The lamp units each have a radiation source and a cover tube surrounding the radiation source, and, the lamp units are essentially cylindrical in shape. The lamp units lamp units in at least one cross-direction are arranged towards the flow direction. The distance between two walls diagonally facing each other is less or equal to the discharge length of the radiation source.

The invention discloses a photovoltaic power generation power prediction method and system. A correlation analysis method is adopted to analyze historical data and determine a radiation intensity predication correlation time and a power generation power predication correlation time. A BP neural network is adopted to train a solar radiation intensity prediction sample and a photovoltaic power generation power prediction sample so as to obtain a solar radiation intensity prediction model and a photovoltaic power generation power prediction model. The solar radiation intensity prediction model is utilized to compute sun radiation intensity at prediction time of a prediction day; the photovoltaic power generation power prediction model is utilized to compute photovoltaic power generation power at prediction time of the prediction day. A grey relational analysis method is adopted to remove solar radiation intensity at the radiation intensity correlation time with a low relational degree in the historical data, and the predication accuracy of the solar radiation intensity is improved. By the adoption of the good nonlinear function approximation capability of the BP neural network, the solar radiation intensity prediction sample and the photovoltaic power generation power prediction sample are trained, the prediction models are built, and predication accuracy of the prediction models is improved.

The package has a base body (51) with a mounting portion for mounting a light-emitting unit. A frame body is joined to an outer edge of the body (51) to surround the portion. A wiring conductor has its one end formed on an upper surface of the base body, to electrically connect an electrode of the light emitting unit. The light transmitting unit (53) is inside the frame body to cover the light emitting unit. - Independent claims are also included for the following: - (A) a light-emitting apparatus comprising a package for housing a light emitting unit - (B) an illumination apparatus constructed by setting up a light-emitting apparatus in a predetermined arrangement.

For a radiation image converting panel according to the present invention, a converting portion that converts a radiation image to an optical image is formed on a support for which a dielectric multilayer film is formed on a metal reflector, and the dielectric multilayer film includes at least a first dielectric layer that is in contact with the metal reflector and a second dielectric layer that is formed on the first dielectric layer and has a higher refractive index than that of the first dielectric film layer to light emitted by the converting portion.

The invention provides a THz wave radiation source with an oval groove grating structure. The oval groove grating with periodicity is adopted as a beam-wave interaction structure of the radiation source. When an electron beam passes through the structure at a certain speed, the electron beam and surface slow waves interact to be clustered and generate an electron beam cluster, then Smith-Purcell coherent radiation is stimulated, radiation is collected through a flat plate or a curved mirror (metal or medium) to generate tunable, compact and high-power THz waves, and therefore the THz wave radiation source can be easily applied to communication, radars, electronic countermeasures, electromagnetic weapons, astronomy, medical imaging, nondestructive detection, safety inspection and other aspects.

The ink-jet recording device includes an image forming section where an active energy ray-curable ink is ejected onto a recording medium to form an image, and an image curing section which includes at least one light irradiation unit having a fluorescent lamp and which cures the ink on the recording medium upon exposure to active energy rays. The fluorescent lamp has a bulb, a reflective film formed on a bulb inner wall and having a first aperture formed on a recording medium side, and a phosphor film formed on the reflective film and the bulb inner wall and having a second aperture formed on the recording medium side. The formulas: β<α, 60°≦α≦150° and 30°≦β≦90° where α represents a first aperture angle of the first aperture and β represents a second aperture angle of the second aperture are satisfied.

The sensitivity of scattered-light fire detectors for small particles can be increased substantially when blue light is introduced into the measuring volume in addition to an infrared radiation and the scattered radiation produced by the particles is measured and evaluated separately from each other in the infrared and blue region both in the forward scattering region as well as in the backward scattering region. This can be realized by a fire detector that includes two transmitter LEDs (2.1a, 2.1b) and two photodetectors (2.2a, 2.2b), with these components being arranged such that the photodetectors receive both the forward scattered radiations as well as the backward scattered radiations of the longer and shorter wavelengths separately from each other. A multi-channel evaluation circuit is provided downstream of the photodetectors.

A method of decreasing the penetration depth of radiation provided to an interface, such as a surface, or a predetermined volume in a means, where the means has a scattering coefficient larger than one tenth of an absorption coefficient thereof so that the radiation not absorbed at the interface or in the volume but transmitted further into the means is at least partly reflected toward the interface/volume. The radiation intensity is higher in the volume and the absorption coefficient may be reduced while retaining the total absorption in the volume. This may be used for all known techniques where radiation is desired absorbed, such as in welding, surface preparation, polymer chemistry, the activation of photo activatable substances etc.

The invention discloses a Smith-Purcell electromagnetic radiation source based on two rectangular gratings, which comprises an electron gun used for generating a rectangular ribbon-shaped electron beam, a large-size flat metal rectangular grating, a small-size flat metal rectangular grating and a collecting electrode, and is characterized in that the electron gun is opposite to the collecting electrode, the large-size flat metal rectangular grating and the small-size flat metal rectangular grating are sequentially placed between the electron gun and the collecting electrode, and the distance between the upper surface of the large-size flat metal rectangular grating and the rectangular ribbon-shaped electron beam is equal to the distance between the upper surface of the small-size flat metal rectangular grating and the rectangular ribbon-shaped electron beam; the constant-speed rectangular ribbon-shaped electron beam generated by the electron gun skims over the upper surface of the large-size flat metal rectangular grating and the upper surface of the small-size flat metal rectangular grating and finally gets into the collecting electrode. Compared with a traditional Smith-Purcell free electron laser, the Smith-Purcell free electron laser can be enabled to operate at higher harmonic waves, and the radiation frequency is improved by 2-3 times.

A system and method for an aircraft (10) that provides an IR decoy (12) for an incoming missile (18) to track instead of an engine (14) of the aircraft (10) is disclosed. The IR decoy (12) is deployed during or just after take off, and prior to landing to provide a signature (16) for any incoming missile (18). The IR decoy (12) provides a heat source (16) that has a higher radiant intensity than the hottest heat source on the aircraft (10), which is typically the engine (14), thereby providing a more attractive heat source for the missile (18). In another embodiment, a warning system (20) for an aircraft (10) detects an incoming missile (18), and deploys IR decoy (12) and creates an engine mask (22) by injecting an additive into the exhaust stream of the engine (14), thereby obscuring the radiation emanating from the engine (14).

The invention relates to technique for improving an electric heating element, in particular to nano far infrared negative ion carbon crystal conductive paper and a method for making the same. The conductive paper resolves the problems of the uneven heat generation, the existence of heat spot and the excessive temperature difference existing in prior electric heating products and is used for electric heating elements for anti-static electricity and making of heating electric hot plates. The conductive paper comprises the following components in percentage by weight: 70 to 96 percent of paper pulp, 2 to 20 percent of nano carbon fiber, 1 to 5 percent of nano far infrared negative ion powder and 1 to 5 percent of dispersing agent. In the invention, by using paper pulp, nano carbon fiber, nano far infrared negative ion powder and dispersing agent as materials and undergoing steps of pulping, pulp beating, pulp mixing, papermaking, drying and scrolling, etc., the conductive paper is made; in the process of pulp beating, the pulp mixing step is made; the pulp mixing step is as follows: nano carbon fiber and dispersing agent and nano far infrared negative ion powder are evenly added in the paper pulp. The invention possesses of functions of the emission of far infrared rays and the release of negative ions at the same time and can effectively and completely release electric charges, thereby having effects of purification and disinfection and making human bodies healthier.

The invention discloses a reflective light-gathering solar photovoltaic power generation assembly with double parabolic cylinders, which comprises a primary light reflecting body, a secondary light reflecting body, a transparent protection cover plate, a photovoltaic battery, a conductive connecting line, a basal plate of a heat radiator and a frame package. A primary parabolic cylinder reflector is arranged on the primary light reflecting body, and a secondary parabolic cylinder reflector is arranged on the secondary light reflecting body. By the proper combined arrangement and use of the two parabolic cylinder reflectors, light-gathering irradiation which has the same radiation intensity and has the same included angle with the surface of the photovoltaic battery is formed at the surface of the photovoltaic battery, so that the photoelectric transformation efficiency of a common photovoltaic battery in unit area is enhanced, the light-gathering ratio of higher times is even reached, and the aim of using less photovoltaic batteries under a condition of given power is achieved, thereby lowering the total cost of a photovoltaic power generation system. The assembly can be used for one-dimensional inclined shaft tracking, can enhance the power generation capacity by tracking and also plays the role of lowering the total cost of the photovoltaic power generation system.

A patch antenna (10) includes a planar first power feeding conductor pattern (11) that is formed on a dielectric substrate (20) and to which a radio frequency signal is fed, a planar second power feeding conductor pattern (12) that is formed on the dielectric substrate (20) and is arranged to be isolated from the first power feeding conductor pattern (11) so as to interpose the first power feeding conductor pattern (11) in the polarization direction when the dielectric substrate (20) is seen in a plan view, and a planar ground conductor pattern (13) that is formed on the dielectric substrate (20) so as to face the first power feeding conductor pattern (11) and the second power feeding conductor pattern (12) and is set to have a ground potential, wherein the second power feeding conductor pattern (12) is not set to have the ground potential.

The invention provides a privacy window system (1) comprising a window panel (100), a lighting unit (200), and a control unit (300), wherein (i) the window panel (100) comprises a first surface (110), a second surface (120) and an edge (130), wherein the window panel (100) is transmissive for visible light wherein at least one of the surfaces (110,120) of the window panel (100) comprises surface structures (105), configured to generate visible privacy light (101) under irradiation with lighting unit radiation (201); (ii) instead of using edge-lighting for the irradiation of the window panel (100), the lighting unit (200) is configured to irradiate one of the surfaces (110,120) of the window panel (100) with said lighting unit radiation (201) thereby inducing said privacy light (101) and reducing visibility through the window panel (100) in at least one direction; and (iii) the control unit (300) is configured to control the lighting unit radiation (201) as function of an input signal.

A system for examining an area of a patient's anatomy that comprises a probe capable of fluorescing, and a scanning beam assembly that scans the probe with a beam of excitation radiation and detects the probe's fluorescence. The scanning beam assembly including a radiation source capable of emitting one or more wavelengths of radiation that are capable of exciting the probe and causing the probe to fluoresce, a scanning device that directs the radiation onto a field-of-view to create a scan of the field-of-view, a detector to detect radiation returned from the field-of-view, and a controller to convert the detected radiation into a displayable fluorescence image.

The invention relates to a fractal array bionic ultra-wideband antenna which comprises a substrate and a fractal array bionic radiation patch adhering to the front side of the substrate. The fractal array bionic radiation patch is an antenna array formed by arranging 25 photonic crystal batwing bionic small antennas according to a crisscrossed array structure. The invention ensures that the antenna array has a large working bandwidth while enhancing the antenna radiation intensity through the array.

The embodiment of the invention provides an antenna unit and terminal equipment, and relates to the technical field of communication. By the antenna unit and the terminal equipment, the problem that afew frequency bands are covered by a millimeter wave antenna of the terminal equipment to cause relatively poor antenna performance of the terminal equipment is solved. The antenna unit comprises aninsulation groove, M feeding parts, M coupling bodies, a first insulator, at least two radiation bodies, a first radiation body and an isolation body, wherein the M feeding parts are arranged in the insulation groove, the at least two radiation bodies are borne by the first insulation body, the first radiation body is arranged at the bottom of the insulation groove, the isolation body is arrangedin a way encircling the M coupling bodies, the M feeding parts are isolated from the first radiation body and the isolation body, the M coupling bodies are arranged between the first radiation body and the first insulation body, each feeding part in the M feeding parts is electrically connected with one of the coupling bodies, each coupling body in the M coupling bodies is coupled to the at leasttwo radiation bodies and the first radiation body, the resonant frequencies of the different radiation bodies are different, and M is a positive integer. The antenna unit is applied to the terminal equipment.