154 results about "Radiation emission" patented technology

A self-calibrating driver circuit (100, 300, 400, 500, 700) for a laser diode is disclosed. The circuit comprises a configurable current source (105, 305, 405, 505), a current mirror (115, 315, 415) configured to mirror a current from the configurable current source to a first transistor (120, 320, 420, 520, 720) and to a second transistor (125, 325, 425, 725), and a control circuit (140, 340, 440). The control circuit is configured to monitor a current through the first transistor at a first time, and to configure the current source based on the current through the first transistor to provide a desired current to the second transistor for driving the laser diode at a subsequent second time. A radiation-emitting device comprising one or more of the self-calibrating driver circuits and at least one radiation-emitting element is also disclosed.

The present invention relates to a device for measuring a line current. Said device comprises at least three sensor elements having paramagnetic centres, a pump-radiation source, an optical system, and at least three photodetectors which function as part of receiving systems and are each associated with a sensor element. In addition, the device contains two magnetic field sources which generate different bias magnetic fields for each sensor element. The pump-radiation source emits pump radiation into the optical system, which distributes the pump radiation to the sensor elements and thereby irradiates the paramagnetic centres with the pump radiation. These centres emit fluorescence radiation, the intensity and phase shift of which depend on the AC drive signal of the evaluation and control device and on the magnetic flux density acting upon them. The fluorescence radiation is separated from the pump radiation by the optical system and guided onto the photodetectors. The evaluation and control device generates a single-frequency sinusoidal AC drive signal having a frequency of 22 MHz (-4 MHz / +7 MHz), or within a range of 18 MHz to 29 MHz. The lock-in amplifiers are coupled to the sensor elements and evaluate the output signal of the photodetectors with respect to the AC drive signal in order to produce measurement values. Based on these measurement values, the evaluation and control device determines an estimated value for the magnitude of the line current in the line.

The disclosure concerns a 3D printhead, a radiation emission device, and processes for additive fabrication and extrusion. The printhead comprises a radiating plate configured to transmit a thermal energy to the printing material deposited on a surface. A radiation emission device may be attached to an additive fabrication or extrusion device and comprising a radiating plate and a heating element. Additive fabrication and extrusion processes using a radiation for heating a surface for deposition of the material. Characteristics of products thus produced, such as porosity rate, warping, isotropy, maximum stress, internal stress, impact resistance, bending resistance, deformation at break, rigidity modulus, crystallinity rate, and impermeability are improved.

A method for manufacturing a radiation-emitting component (100) is specified, comprising the following process steps: - Providing at least one semiconductor chip (10) which, during operation, emits electromagnetic radiation of a first wavelength range from a radiation emission surface (11), - Manufacturing a conversion element (20) on the radiation emission surface (11), wherein manufacturing the conversion element (20) comprises the process steps: - Applying a partially cured matrix material (21) in which phosphor particles are embedded that convert electromagnetic radiation of the first wavelength range into electromagnetic radiation of a second wavelength range, to a surface, - Compacting the partially hardened matrix material (21) to produce a compact layer (22), - Complete hardening of the compact layer (22), wherein the surface is the radiation emission surface (11) of the semiconductor chip (10) or an auxiliary substrate from which the compact layer (22) is transferred to the radiation emission surface (11) before complete curing. A radiation-emitting device (100) is further specified.

A method for fabricating a radiation-emitting device is described. The method comprises: providing at least one semiconductor chip configured to emit electromagnetic radiation of a first wavelength range at a radiation-emitting surface of the semiconductor chip during operation; fabricating a conversion element on the radiation-emitting surface of the semiconductor chip, comprising the steps of: applying a photoresist to the semiconductor chip; structuring the photoresist such that the radiation-emitting surface of the semiconductor chip is free of the photoresist; arranging a conversion material on the radiation-emitting surface of the semiconductor chip, the conversion material comprising a polysiloxane precursor; and crosslinking the conversion material to fabricate the conversion element.

The invention relates to a device for testing and / or adjusting and / or calibrating at least one imaging system, in particular a lidar system, wherein the imaging system is associated with at least one radiation-emitting unit, wherein a detection field can be formed by means of the emitted radiation, wherein the device has at least one radiation direction unit for directing the radiation onto an entry area of ​​a kaleidoscope, wherein the radiation direction unit has at least one controllable radiation-reflecting element, wherein the kaleidoscope has mutually facing reflective surfaces that deflect the radiation within the kaleidoscope depending on a certain entry angle of the radiation into the kaleidoscope.wherein the device comprises at least one reflection device adjoining an exit region of the radiation from the kaleidoscope for reflecting the radiation exiting the kaleidoscope, the reflection device comprising a controllable display. The invention further relates to a method for testing and / or adjusting and / or calibrating at least one imaging system, in particular a lidar system.

A method for calibrated X-ray imaging, with an X-ray imaging system with a radiation emitter with variable pose and an X-ray detector with a variable pose which can be actuated independently of the variable pose of the radiation emitter is described. A calibration and control device and an X-ray imaging system are also described.

The invention relates to a radiation-emitting semiconductor chip having the following features: —a semiconductor body including an active region which, during operation, generates electromagnetic radiation and is arranged in a resonator, —at least one recess in the semiconductor body, which recess completely penetrates the active region, wherein—the recess has a first lateral face and a second lateral face opposite the first lateral face, and—the first lateral face has a first coating which specifies a reflectivity for the electromagnetic radiation of the active region, and / or—the second lateral face has a second coating which specifies a reflectivity for the electromagnetic radiation of the active region. The invention further relates to a method for producing such a semiconductor chip.

A phosphor is disclosed, the phosphor having a host material including an oxide, an activator element having a rare earth element with a first valence, and a rare earth element with a second valence, the second valence being greater than the first valence. Methods of making the phosphor and radiation-emitting components are also disclosed.

An infrared radiation emitting resin composition containing an infrared radiation emitting material having high emissivity and capable of emitting uniform and stable radiation within a predetermined wavelength range is provided. An infrared radiation emitting resin composition containing an infrared radiation emitting material and a resin is disclosed, wherein the infrared radiation emitting material contains conductive carbon black and gold nanoparticles, and the mass ratio of the conductive carbon black to the gold nanoparticles in the infrared radiation emitting material is 99.95:0.05 to 99.999:0.001.

The invention relates to the field of medical instruments, in particular to a laser treatment device used in a blood vessel cavity, which comprises a flexible waveguide tube with a near end connected with a laser light source and a far end suitable for being placed in a blood vessel; the far end of the waveguide tube is provided with at least one radiation emission structure and a cover piece, the cover piece wraps and is fixedly connected to the far end of the waveguide tube, the inner surface of the cover piece is provided with a light absorption structure, the light absorption structure is axially opposite to the radiation emission structure, and the radiation emission structure is arranged on the inner surface of the cover piece. The radiation is axially propagated along the long axis direction of the waveguide tube and arrives at the long axis direction of the waveguide tube; moreover, a gap between the far end of the waveguide tube and the inner cavity of the cover piece is filled with a curable fluid material, so that a solid-solid optical interface is formed; the solid-solid optical interface is arranged between the radiation emission structure and the cover piece, so that light refraction and deviation from a preset emission path can be effectively avoided.

A system for performing die bonding includes a sensor configured to determine characteristics of the topography of the surfaces of one or more semiconductor dies, the sensor comprising: a radiation emission system configured to emit radiation having a substantially flat wavefront; and a radiation detector configured to detect at least some of the radiation after the radiation is reflected by the one or more semiconductor dies to determine the characteristics of the one or more semiconductor dies, wherein the system is configured to, based on the output of the sensor, 1) accept the semiconductor dies for die bonding and / or reject the semiconductor dies for die bonding, or 2) reposition the semiconductor dies and / or output the semiconductor dies for cleaning prior to bonding.

According to the new energy automobile radiation emission resonance diagnosis method based on the all-in-one high-voltage system, real automobile experiment test data and modeling in a simulation environment are organically combined, and emission radiation resonance generation mechanisms and related distribution parameters corresponding to different high-voltage system structures under different working conditions can be subjected to real-time real-time real-time real-time real-time real-time real-time real-time real-time real-time real-time real-time real-time real-time real-time simulation; complete and deep simulation modeling is realized, and the radiation emission characteristics of the whole vehicle can be described and reproduced more accurately through verification of actually measured resonance data. A simulation model which is verified to be effective is used for carrying out multi-term quantitative discrimination on a resonance mechanism, so that a more targeted suppression strategy can be made and implemented, and the electromagnetic compatibility problem can be solved more efficiently from a design end.

Radiation-emitting component (1) with - a carrier (2) which has a cavity (9), - a radiation-emitting semiconductor chip (3) arranged on a base surface bounding the cavity (9) and designed to generate primary electromagnetic radiation, and - a first reflector layer (6) arranged above a cover surface of the semiconductor chip (3), wherein - the carrier (2) is partially transparent to the primary electromagnetic radiation, - the support (2) has a side wall and a bottom, - the side wall has a cover surface that forms a cover surface of the support (2), and the bottom has a cover surface that forms the bottom surface bounding the cavity (9), - the top surface of the side wall and the top surface of the floor are connected to each other by at least one side surface of the support (2) which faces the cavity (9), - the top surface of the support (2) runs at an angle to the bottom surface of the support (2), - electromagnetic primary radiation escapes through at least one transparent side wall of the support (2), and - the semiconductor chip (3) is spaced away from at least one side surface that bounds the cavity (9).

A system may include a therapy device including one or more therapy modules configured to couple to a patient. Each therapy module includes an array of radiation-emitting components, a waveform generator, and a processor coupled to the waveform generator and to the array. Each emitting component is configured to emit electromagnetic radiation in response to an electrical signal. The waveform generator is coupled to the array of radiation-emitting components and configured to generate one or more time-varying waveforms to drive the radiation-emitting components. The processor may be configured to select a protocol of a plurality of protocols. Each protocol may define one or more parameters including one or more of a waveform shape, an amplitude, a frequency, a timing parameter, and a duration parameter. The processor may be configured to send a signal to the waveform generator to generate the one or more time-varying waveforms according to the selected protocol.

The invention discloses a high-efficiency interference-free radiation emission test field measurement and control device and method, and the device comprises a field measurement and control terminal which is disposed in a semi-anechoic chamber and is held or worn by a tester; the on-site measurement and control terminal integrates a man-machine interaction unit and a data processing and display unit. And the radio frequency interference-free communication platform is used for constructing a two-way communication link between the test system and the control system and comprises a radio frequency interference-free communication unit, a low-leakage transmission network, a communication gateway, a test instrument group and a link state monitoring and safety braking module. On the premise of strictly maintaining radio frequency silence of a test environment, a tester is allowed to stay in a safe activity area in the darkroom in the whole process, and real-time setting and adjustment of parameters of a test instrument, real-time control of a test process and real-time monitoring of test data are realized; and a tester is supported to carry out field dynamic adjustment and optimization on the test equipment or the object to be tested based on real-time data feedback.

The present application relates to the field of radiation emission and sensitive limit optimization of multiple devices, and particularly relates to a radiation emission and sensitive limit joint optimization device for multiple radio frequency device coexistence. The device comprises: a coupling gain calculation module, which calculates the radiation coupling gain of a multiple device system composed of multiple transmitting devices and multiple receiving devices; an interference power and interference margin calculation module, which calculates the interference margin of a receiving device at a set frequency point according to the interference power; a target function construction module, which constructs a comprehensive target function; a constraint module, which sets a constraint condition and constructs an optimization problem; an optimization problem solving module, which iteratively solves the optimization problem using a sequential quadratic programming method; and a dynamic adjustment module, which dynamically adjusts the weights of each item in the comprehensive target function, and outputs the emission limit and sensitive limit of the multiple device system at all frequency points when the iteration stop condition is met. The present application is suitable for complex system electromagnetic compatibility design.

A radiographic imaging system includes: a radiation emitter that emits radiation; a measurer that measures a distance between the radiation emitter and a radiographic imaging device and outputs distance information; and a hardware processor. The radiographic imaging device generates an image, based on the radiation emitted by the radiation emitter. The hardware processor calculates angle information of the radiographic imaging device with respect to a direction of the radiation emitted by the radiation emitter, based on the distance information of the measurer.

The invention relates to an RFID method comprising the following method steps: a) transmitting at least one RFID transmission radiation of an RFID transmission unit into an RFID transmission field in which a plurality of RFID transponders are located; b) converting the RFID transmission radiation into RFID transponder radiation using at least one RFID transponder, wherein the RFID transponder radiation contains RFID transponder information relating to the RFID transponder; c) receiving the RFID transponder radiation using at least one RFID receiving unit; d) grouping the RFID transponders into RFID transponder groups on the basis of the RFID transponder information of the received RFID transponder radiation; e) selecting an RFID transponder group representative of at least one of the RFID transponder groups; f) determining at least one RFID transponder parameter of the RFID transponder group representative; g) assigning the RFID transponder parameter of the RFID transponder group representative to at least one other member of the RFID transponder group of the RFID transponder group representative. The invention also relates to an RFID device for carrying out the RFID method, comprising at least one RFID transmission unit for carrying out step a) of the RFID method, at least one RFID receiving unit for carrying out step c) of the RFID method, and at least one RFID evaluation unit for carrying out at least one of steps d) to g) of the RFID method. The invention further relates to a computer program product for carrying out at least one of steps a) to g) of the RFID method

An optoelectronic component is disclosed. The optoelectronic component comprises a pixelated radiation-emitting semiconductor chip comprising a plurality of emission regions that are separately drivable. The optoelectronic component further comprises a grid-shaped radiation-transmitting wall structure arranged on the radiation-emitting semiconductor chip. The wall structure surrounds openings via which the radiation-emitting semiconductor chip is exposed. The openings are each associated with one of the emission regions of the radiation-emitting semiconductor chip. The optoelectronic component further comprises a plurality of radiation-transmitting cover elements arranged on the radiation-emitting semiconductor chip. The cover elements are each located in one of the openings surrounded by the wall structure and laterally adjoin the wall structure. The wall structure comprises a lower refractive index than the cover elements. Further disclosed is a method for producing an optoelectronic component.

Light-emitting device configured to emit radiation, comprising: a substrate (50); an epitaxic structure (20) comprising in succession a first DBR stack (21), a light-emitting stack (22), a second DBR stack (23) and several discrete first and second contact regions (241), wherein the light-emitting device emits coherent light having a far-field angle of less than 15 degrees, at a forward current between a laser threshold current and a saturation current therein, and incoherent light at a forward current less than the laser threshold current, wherein the epitaxial structure (20) is arranged on the substrate (50) and further comprises: several first radiation-emitting areas in a first column; and several second radiation-emitting areas in a second column; a conductive layer (60) on the epitaxial structure (20); wherein the contact areas (241) are arranged in a two-dimensional field and are configured to direct a spatially limited current in the light-emitting device to the several first radiation-emitting areas and the several second radiation-emitting areas; and wherein one of the several first contact areas includes a first latitude (w3') and one of the several second contact areas includes a second latitude (w3) that differs from the first latitude (w3').

Smoke detector (2) according to the scattering radiation principle, with a radiation transmitter (4) and a radiation receiver (6), whose radiation paths (8, 10) form a scattering volume (12), and with a filter medium for filtering out ambient light, characterized in that the smoke detector (2) is designed so that the filter medium can be temporarily deactivated, wherein the filter medium has an optical filter (14, 18) for filtering radiation reaching the radiation receiver (6).

A sensor has a radiation emitter, a plurality of electrodes, a sensing material (transducer), and a recognition element (receptor, bioreceptor). The radiation element irradiates the sensing material, the plurality of electrodes are in electrical contact with the sensing material, and the recognition element is in contact, either directly or through an interface, with the sensing material. The sensing material receives radiation from the radiation source and interacts with the target material largely through the receptor. Further, the sensing material generates a measurable electrical signal upon interaction with a target molecule, when a potential is applied to the electrodes.

A radiation irradiation device includes: a device main body that irradiates a subject with radiation; a spacing ensuring unit that is a member extending from the device main body in an emission direction of the radiation to ensure a spacing between the subject and the device main body and is switchable between an unfolded state in which a length extending from the device main body is a predetermined length and a storage state in which a length from the device main body is shorter than the predetermined length with a displacement of at least a part of a movable portion; and a processor, in which the processor detects a state including the storage state and the unfolded state of the spacing ensuring unit, and executes a control of an operation of the device main body according to the detected state.

An inspection apparatus for detecting a defect in an electrode tab of an electrode assembly, wherein the electrode tab is provided at a longitudinal end of the electrode assembly. The inspection apparatus comprises a radiation emitting means configured to emit an x-ray or a beta ray towards the electrode tab and a radiation measuring means, disposed opposite the radiation emitting means so as to have the electrode tab positioned therebetween. The radiation measuring means is configured to measure an amount of the x-ray or the beta ray transmitted through the electrode tab. The inspection apparatus further comprise a processor configured to process a signal corresponding to the measured amount of the x-ray or the beta ray and determine a defect if the amount of the x-ray or the beta ray measured at a portion within the electrode tab shows a drop by a predetermined threshold or more, compared to a reference value.

The invention provides a distributed X-ray tube, a distributed X-ray source assembly and an imaging system. The distributed X-ray tube comprises a tube shell which comprises a front plate, a back plate and two end plates, the front plate and the back plate extend in the first direction, the two end plates intersect with the first direction, the front plate is provided with a ray window used for emitting rays, and the two end plates are oppositely arranged in the first direction; the vacuum cavity is at least partially surrounded by the pipe shell; the anode is located in the vacuum cavity, the anode comprises a plurality of target spots, the anode is constructed to generate multiple beams of X-rays from the multiple target spots, and the multiple target spots are arranged at intervals in the first direction. At least one end plate comprises a cavity outer side face located on the side, away from the vacuum cavity, of the end plate, the cavity outer side face comprises an outer side end face and a forward receding face, and in the second direction, the forward receding face is closer to the front plate relative to the outer side end face; in the first direction, the forward receding face shrinks inwards in the direction close to the vacuum cavity relative to the outer side end face.

The invention discloses a method and device for testing radiation emission at high temperature, and the device comprises a heat preservation box mechanism, and also comprises an electromagnetic box mechanism which is arranged at the inner side of the heat preservation box mechanism and is used for placing a sample to form a heat preservation cavity during sample testing; the temperature rise detection mechanism is arranged on one side of the electromagnetic box mechanism and is used for carrying out temperature rise operation on the interior of the electromagnetic box mechanism; the electromagnetic box driving and releasing mechanism is arranged above the electromagnetic box mechanism and is used for driving the electromagnetic cover in the electromagnetic box mechanism to move and releasing the electromagnetic cover; the sample power supply mechanism is arranged above the test table and is used for supplying power to the sample; the state monitoring mechanism is arranged on the outer side of the heat preservation box mechanism and used for monitoring the sample working state in real time; through the nested design of the heat preservation box mechanism and the electromagnetic box mechanism, the problems that in a traditional scheme, electromagnetic signals are reflected by a metal high-temperature box, and dielectric loss of a common non-metal box is high are solved.

An electric generator can include: a radionuclide to emit gamma radiation (GR); an emitter having an emitter atom to receive the emitted GR so that, the GR causes an electron of an emitter atom to be liberated, and thereby be emitted from an emitter surface; a collector spaced from the emitter surface forming a gap between the emitter surface and a collector surface; and a gas having a gas atom and a gas pressure, in the gap, to receive, GR passed through the emitter so that, the received GR causes an electron of the gas atom to be liberated; wherein electrons liberated from the emitter atom and the gas atom are received by the collector, thereby causing an electrical potential difference between the emitter and the collector, and so that an electric current corresponding to a flow of electrons between the emitter and the collector is producible from the collector.

The object of the present invention is to provide an environmental measurement system and an environmental measurement method that can reduce the risk of failure of electronic equipment used for environmental measurement in a radiation environment. [Solution] The present invention relates to an environmental measurement system for measuring environmental information in a radiation environment, comprising: a detection unit equipped with a radiation emitter for detecting radiation; a first transport mechanism for installing the detection unit in a predetermined radiation environment; a second transport mechanism for retrieving the detection unit; and an analysis unit for analyzing environmental information where the detection unit is installed from measurement information measured by the retrieved detection unit. The detection unit is a measuring instrument that does not require power supply, and the second transport mechanism has a positioning function that identifies the location of the detection unit based on the light emitted from the radiation emitter.

A luminophore has the general formula EA2−xRExSi5−x−yAlx+yN8−yOy:A, where0<x≤2 and 0≤y≤2, EA is an element or a combination of elements from the group of alkaline earth elements, RE is an element or a combination of elements from the group of rare earth elements, and A is an activator element. A method for the production of a luminophore and a radiation-emitting component are further disclosed.