100 results about "Pulse irradiation" patented technology

A determination section of an FPD checks external information against a determination table and determines whether detection of a rise of X-ray pulses is allowed based on an output voltage from a short-circuited pixel. The FPD detects X-ray images. The external information is transmitted from an imaging control device. The X-ray pulses are sequentially generated by an X-ray generating apparatus. A controller selects a pulse irradiation mode in a case where the detection of the rise of the X-ray pulse is allowed. If not, a successive irradiation mode is selected. In the pulse irradiation mode, the rise and the fall of the X-ray pulse are detected and timing of storage operation is synchronized with the detected timing of the rise. In the successive irradiation mode, the storage operation is performed at predetermined time intervals without the detection of the rise and the fall of the X-ray pulse.

In order to provide a low-loss optical switch that is low in power consumption by providing the same as a self-holding type, and high speed and highly practicable, an optical switch of the present invention is composed of a quartz substrate (101), first and second input waveguides (102a and 102b), a first directional coupler (103), first and second arm waveguides (104a and 104b) of a Mach-Zehnder interferometric circuit, a second directional coupler (105), first and second output waveguides (106a and 106b), and a phase change material portion (100). A control light (for an amorphous to crystal transition) pulse (pulse width: 20 ns, pulse intensity: 5 mW) having a wavelength of 0.78 microns is irradiated. As a result of the control light pulse irradiation, the phase change material portion (109) changes in phase to a crystal state, and the optical switch transits to a bar condition.

A method of treating mammalian skin tissues for causing a predetermined physiological change in the mammalian skin tissues. A treatment composition of matter is applied onto the mammalian skin. The mammalian skin is irradiated with a first pulse having a power density above an activation threshold power density and with a second pulse. The first pulse is emitted for a duration of from about 1 fem-tosecond to about 1 hour, and the first pulse is separated from the second pulse by an inter-pulse interval of from about 1 microsecond to about 10 seconds. The treatment composition of matter includes a photoreactive substance and is applied in an amount sufficient to cause physiological changes within the mammalian skin tissue upon the mammalian skin tissue being irradiated.

An apparatus for controlling the position of a screen pointer for an electronic device having a display screen, includes a light source for illuminating an imaging surface with a plurality of light pulses, thereby generating reflected light pulses. A detection circuit is configured to sense light, distinguish between the reflected pulses and ambient light, and generate a low signal indication if the magnitude of the reflected pulses falls below a threshold value. An optical motion sensor generates digital images based on the reflected pulses. The motion sensor is configured to generate movement data based on the digital images. The movement data is indicative of relative motion between the imaging surface and the apparatus.

The invention discloses a method for microscopy in which a specimen is illuminated with pulsed illuminating light that comprises light from a spectral region, and detection light proceeding from the specimen is detected in a detection spectral region. The method is characterized in that the detection spectral region lies within the spectral region, and that the illuminating light contains no light from the detection spectral region or at least none having the same polarization properties. A microscope is additionally disclosed.

A radiographic image capturing system includes a radiographic image capture device, a radiation irradiation device, and a control device. The radiographic image capture device is capable of wired and wireless communications, and is capable of fluoroscopic imaging in which radiographic images are successively captured at notified synchronization timings or at a predetermined frame rate. The radiation irradiation device irradiates radiation toward the radiographic image capture device during fluoroscopic imaging, with continuous irradiation or pulse irradiation. The control device includes a wireless communication unit, a wired communication unit, and a controller that, if communication with the radiographic image capture device is performed by the wireless communication unit, prohibits fluoroscopic imaging with pulse irradiation in which the synchronization timings are notified to the radiographic image capture device and radiation is irradiated from the radiation irradiation device in pulses matching the notified synchronization timings.

The invention relates to a hearing aid device for humans with impaired hearing, who have an at least partially functional cochlea and a functional nervous signalling pathway from the cochlea via the auditory nerve to the brain. The hearing aid device contains a receiver, a transducer of the sound or other acoustic signals into electrical current serving as a signal representing a sound, a pulsed irradiation source connected to the transducer for receiving the electrical current and for generating modulated pulsed irradiation in dependence from the electrical current, and preferably one or more optical fibres optically coupled to the exit of the pulsed irradiation source, wherein the optical path for conduction of irradiation within the device ends directly opposite a functional element of the natural vibration transduction pathway, e.g. adjacent the skull, the tympanic membrane, the hammer, the incus, the stapes, the outside of the cochlea, the otic capsule, the round window membrane, or the oval window membrane.

A radiographic image capturing system includes a radiographic image capturing device, a radiation irradiating device, and a control device. The radiographic image capturing device is capable of performing fluoroscopic imaging, and carries out capturing of radiographic images continuously. The radiation irradiating device performs continuous irradiation or pulse irradiation with respect to the radiographic image capturing device at a time of fluoroscopic imaging. The control device has a controller that effects control such that, in a case in which a frame rate of fluoroscopic imaging is low, the radiation irradiating device performs fluoroscopic imaging by the continuous irradiation with respect to the radiographic image capturing device.

A thin film processing method for processing the thin film by irradiating an optical beam to the thin film. A unit of the irradiation of the optical beam includes a first and a second optical pulse irradiation to the thin film, and the unit of the irradiation is carried out repeatedly to process the thin film. The first and the second optical pulse have pulse waveforms different from each other. Preferably, a unit of the irradiation of the optical beam includes the a first optical pulse irradiated to the thin film and a second optical pulse irradiated to the thin film starting substantially simultaneous with the first optical pulse irradiation. In this case, the relationship between the first and the second optical pulse satisfies (the pulse width of the first optical pulse)<(the optical pulse of the second optical pulse) and (the irradiation intensity of the first optical pulse)≧(the irradiation intensity of the second optical pulse). A silicon thin film with a small trap state density can be formed by the optical irradiation.

There is disclosed an ultrashort pulse laser processing method for processing an article to be processed by using an ultrashort pulse laser. The method comprises setting a pulse of a laser to a fluence not more than a single-shot processing threshold fluence which is a fluence processing threshold value at the time of one pulse irradiation and setting the pulse to a pulse width of 10 ps or less and a laser wavelength of 100 nanometers or more to 100 micrometers or less and applying a plurality of shots of the pulse to the article to be processed.

The invention relates to a transmission electron microscope sample loading net, which pertains to the measurement field of nano-materials. The invention includes a support part and a circuit part, the support part includes a metal ring (1), the circuit part includes two electrodes (2), an element which is ready to be measured and a phase change material amorphous thin film (5), the electrodes (2) are insulatedly bonded with the metal ring (1), the phase change material amorphous thin film (5) is evenly distributed between the two electrodes (2), the phase change material thin film (5) is amorphous, the element which is ready to be measured is positioned in the phase change material amorphous thin film (5) or is integrated on one electrode (2). The connection lines in the invention are characterized by erasable property, the higher voltage is added on the both ends of the electrodes, or the loading net is directly done with certain laser pulse irradiation, so the phase change material thin film is completely amorphous, the formed current path disappears, the optional and repeated erasable properties of the measurement circuit are realized.

The invention discloses a multifunctional refrigerator. The multifunctional refrigerator comprises a refrigerating chamber and a freezing chamber, and further comprises a spectral chamber, the spectral room, the refrigerating chamber and the freezing chamber are arranged in the multifunctional refrigerator in sequence from the top down, air outlets are formed in one side of the spectral room, a fan is arranged in each of the air outlets, air inlets are formed in the other side of the spectral chamber, an evaporator is mounted in each of the air inlets, LED lamp panels are arranged in the spectral chamber, and a heat pipe is arranged at the bottom of the spectral chamber, and communicated with a refrigerator radiator. According to the multifunctional refrigerator disclosed by the invention, a variety of regular pulse type optical signals are arranged in the spectral room to promote plant photosynthesis, so that vegetables in a growing chamber can obtain a suitable growth environment, and then fresh vegetables can be picked at any time without going outdoors, furthermore, pesticide residues remaining in the vegetables and fruits in a preserving chamber can be greatly degraded under reasonable and orderly pulse irradiation, and nutritional ingredients of the vegetables and fruits are further increased, and colors and tastes of the vegetables and fruits are improved.

The invention discloses a character-wheel-type meter reading method and a character-wheel-type direct-reading meter. With respect to a photoelectric direct-reading type meter, at an optical pulse emitting end, a coded optical pulse is transmitted in optical fibers; the coded optical pulse irradiates to a specific position on a character wheel, wherein the specific position is provided with a light reflection or transmission area corresponding to characters on the character wheel; at an optical pulse receiving end, the coded optical pulse from the light reflection or transmission area is received by optical fibers and decoded by a decoding module so as to finally obtain the corresponding characters of the character wheel; the optical fibers at the optical pulse emitting end and the opticalfibers at the optical pulse receiving end are arranged in pairs and are opposite in positions; and in accordance with the system of the character wheel, a corresponding number of pairs of the opticalfibers at the optical pulse emitting / receiving ends are arranged so as to meet a condition that the emitted coded optical pulse and the received coded optical pulse in each pair of optical fibers areconsistent. By means of the invention, the problems of susceptibility to optical pollution, large optical interference between adjacent meters, large electromagnetic interference, poor safety, low reliability, high reading error rate and the like of the traditional direct-reading type meter are solved.

The invention discloses a microwave-assisted spark plug ignition method, comprising the steps of issuing a pulse signal to a spark plug system to trigger the same to generate a pulse high voltage; issuing a pulse signal to a microwave system to trigger the same to generate a microwave pulse of specific frequency and power; loading the pulse high voltage to a spark plug, breaking down thin gas via arc discharging to generate a plasma cluster; the plasma cluster can be expanded via microwave pulse irradiation to achieve ignition via thin combustion in an internal combustion engine. The invention also discloses a microwave-assisted spark plug ignition integrated set. The method of the invention combines the advantages of spark plug high-voltage discharge breakdown and those of microwave-to-plasma-cluster coupling energy; the integrated set of the invention includes a spark plug system and a microwave system, and achieves stable ignition via thin combustion in high-pressure environment of a combustor of the internal combustion engine.

A method for sterilizing a drinking water packing material by using a pulse sterilization technology comprises the following steps: (1) sterilizing the drinking water packing material by using the pulse sterilization technology; (2) sterilizing by using a novel drinking water packing material pulse sterilization device in step (1), wherein the novel drinking water packing material pulse sterilization device comprises a bottle cap conveying device which is electrically connected with a control system and a cooling system and is provided with a clean sterilizing chamber, the control system is electrically connected with a photoelectric detecting device, and the bottle cap conveying device is in transmission connection with a bottle conveying device; (3) matching the novel drinking water packing material pulse sterilization device in step (2) with the bottle conveying device; and (4), arranging the photoelectric detecting device in step (2) above the bottle conveying device, wherein the clean sterilizing chamber comprises a pulse irradiation device and a dust removal device which are arranged above a cap conveying guide track. The power density of irradiation is high, the irradiationtime is short, the irradiation energy is high, sterilization is thorough, and the method is energy-saving and environmentally friendly.

An apparatus 1A for processing carbon nanotubes (CNTs) includes: a processing chamber 3 for housing to-be-processed liquid 2 with CNT raw material 5 to be fragmented being suspended in a solvent 4; and a pulse irradiation light source 10 for applying pulse light having a predetermined wavelength for fragmentation of the CNTs in the solvent 4 to the to-be-processed liquid 2 housed in the processing chamber 3. This achieves a method and apparatus for processing carbon nanotubes that can fragment CNTs efficiently, and carbon nanotube dispersion liquid and carbon nanotube powder produced by the same.

A measuring device for measuring a physical property of an object which is irradiated with an electromagnetic wave pulse. The measuring device includes a waveform obtaining unit which obtains a time waveform from a signal relating to the electromagnetic wave pulse reflected from a first reflection portion and a second reflection portion of the object. The waveform obtaining unit obtains a first obtained waveform at a first collection point where a parallel region of the electromagnetic wave pulse is adjusted by a position adjusting unit so as to be in only one of the first reflection portion and the second reflection portion of the object, and obtains a second obtained waveform at a second collection point different from the first collection point. A waveform forming unit forms a measured waveform based on the first obtained waveform and the second obtained waveform.

The invention discloses a photoelectric image strobe shutter time set up measuring method and a device. The invention adopts an element which can display optical signal arrays in order in a flat panel at fixed time difference to ensure the optical signal arrays flat images focus on a photocathode face of an image converter and a strobe shutter under test is arranged between the image converter and the image plane of the image converter. When ultra-short optical pulse signal is input into the photoelectric signal array element through the input terminal, optical pulse signals are displayed in the order of the arrays at the output terminal at fixed time difference, the strobe shutter under test is opened at the moment. Then the optical pulse signals displayed orderly at fixed time difference are imaged and recorded, the open time of the strobe shutter under test can be determined according to the number of light spots recorded. Thus, strobe shutter time set up can be measured. The element-the length differences between each two adjacent optical fibers in an ultra-fast optical yard-stick are the same. When ultra-short optical pulses shine on the input terminal plane, optical pulse signals are displayed at fixed time difference in the order of the arrays. Compared with the prior art, the measuring method and device of the invention have the advantages of high accuracy, better reliability, good repeatability, high measurement efficiency, easy operation and low cost.

The invention discloses a microwave induced thermoacoustic tomography system for early discovery and diagnosis of breast cancer. The system comprises a circular scanning turntable, a radiating antenna is arranged in the circular scanning turntable, a scanning bowl is arranged above the radiating antenna, the scanning bowl is arranged above the circular scanning turntable, and a plurality of ultrasonic probes are arranged on the scanning bowl; and a plurality of preamplifiers are arranged below the circular scanning turntable and connected with the ultrasonic probes. Through the system, tumor tissues are converted into an ultrasonic pulse source under electromagnetic wave pulse irradiation by using strong contrast of the tumor tissues and normal tissues on electromagnetic energy absorption and the advantage of high short wavelength imaging resolution of ultrasonic and using a microwave induced thermoacoustic effect, and the tumor tissues are imaged and positioned by using a time reversal imaging technology, so that ionizing radiation harm is not produced, and the detection sensitivity and the imaging resolution of the system are higher than those of the conventional B ultrasonic equipment; and the system tends to frontier research and equipment development in the field of tumor detection.

The invention improves the processing performance in a grooving process and a cutting process of a semiconductor material and a ceramic material by using laser beams. A laser processing method and a laser processing apparatus are provided for performing a grooving process or a cutting process by pulse-irradiating an inorganic object to be processed with ultraviolet laser beams. The deeper the processing depth of the grooving process or the cutting process becomes or the higher the scanning speed of the ultraviolet laser beams becomes, the longer the pulse width of the ultraviolet laser beams is set. Thus, compared with the case wherein the average output power is increased, the processing performance can be remarkably improved.

The invention relates to a photoelectric detection device, system and method. The photoelectric detection device comprises a silicon photomultiplier, a signal cooperative reading circuit and a signalprocessing unit, wherein the silicon photomultiplier is used for detecting optical pulse signals from a detected sample after the detected sample is irradiated by optical pulse and converting the detected signals into electrical pulse signals; the signal cooperative reading circuit is connected with the silicon photomultiplier and used for cooperatively generating gate control signals for controlling output of the silicon photomultiplier on the basis of pulse control signals which are used for controlling a light emitting device to generate the optical pulse signals, so that the silicon photomultiplier is in a gate control photon counting mode, and the electrical pulse signals output by the silicon photomultiplier are collected in gate control time of the gate control signals; the signal processing unit is connected with the signal cooperative reading circuit and used for counting photoelectron events on the basis of photoelectron number corresponding to each pulse in the collected electrical pulse signals, and when a photoelectron event counting result meets Poisson distribution conditions, the average photoelectron number is calculated on the basis of the counted photoelectron number according to a probability function of Poisson distribution.

The invention belongs to the field of black silicon material preparation, and particularly relates to a method for preparing a selenium-silicon composite film in a thermal evaporation and magnetron sputtering mode and preparing black silicon in a femtosecond laser etching mode. According to the method, as a silicon film formed on a selenium film in the existing technology in a sputtering mode serves as a protection layer, volatilization of chalcogens in the femtosecond laser etching process is reduced, the doping content is increased, impurities Se introduced by laser pulse irradiation can be prevented from dispersing to the grain boundary, and thus the doping concentration of impurities Se on the surface is guaranteed to improve the absorptivity of black silicon. The absorptivity of black silicon prepared through the method is higher than 95% at the 400-1100 nm band, and the absorptivity of black silicon is higher than 90% at the 1100-2200 nm band. Compared with a black silicon material prepared through a method that only a selenium film is formed in a thermal evaporation mode, but no silicon protection layer is formed for covering, the absorptivity of black silicon prepared through the method is obviously increased at the near-infrared band.

The invention provides a building security system and a building security method based on pulse light spot array pattern change detection. The building security system comprises a camera, a mainframe, a warning device and a light source, the light source gives out dot matrix rays by a pulse irradiation method, the dot matrix rays irradiate on a detection area to form a light spot array, a sensor for detecting the light spot array is arranged in the camera, and a grating used for adjusting shape of the light spot array and number of light spots is further arranged in front of the light source. Real-timeness and improved efficiency of detection can be achieved by adjusting the light spots and parameters of an image sensor, the building security is easy to implement and low in cost, and has a great application prospect. The building security method is capable of realizing intrusion detection within a variable range by changing the number of the light spots, light spot array pattern and position of the light source for changing detection range.