95 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.

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.

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 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 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 discloses a phase-change-hysteresis-based spatially distinguishable thermal radiation device and a dynamic control system and method. According to the invention, with a phase change material with the phase change hysteresis characteristic, spatially distinguishable thermal radiation dynamic regulation and control are realized successfully by combining a resonant cavity type optical structure and using a laser pulse irradiation mode controlling the pulse width. Therefore, low-cost and large-area thermal radiation regulation and control can be rapidly carried out in a large high dynamic range, so that the active infrared camouflage and thermal infrared communication device based on dynamic heat radiation regulation and control is more practical.

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 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.

A fabrication method of a crystallized semiconductor thin film is such that: by performing pulse irradiation of energy beams in a minute slit shape to a semiconductor thin film (5), the semiconductor thin film (5) of an region to which the energy beams are irradiated is fused and solidified over the whole area in a thickness direction so as to be crystallized, a main beam (6) and a sub beam (7), having smaller energy per unit area than that of the main beam (6), which adjoins the main beam (6), being irradiated to the semiconductor thin film (5).

A photolithography apparatus is constructed comprising an exposure light source that emits light with a wavelength of 400 nm or less as the exposure light, a reticle with a pattern original image formed therein, an illumination optical system that irradiates light outputted from the exposure light source onto the reticle, a projection optical system that projects the pattern image outputted from the reticle onto a photosensitive plate and an alignment system that positions the reticle and the photosensitive plate. At least some of the synthetic silica glass members composing the illumination optical system, the synthetic silica glass members composing the projection optical system and the reticle consist of synthetic silica glass members which, upon 1x104 pulse irradiation with an ArF excimer laser at an energy density from 0.1 muJ/cm2.p to 200 mJ/cm2.p, have a loss factor of no greater than 0.0050 cm-1 at 193.4 nm measured after irradiation, a hydrogen molecule concentration of from 1x1016 molecules/cm3 to 2x1018 molecules/cm3 and a loss factor of no greater than 0.0020 cm-1 before ultraviolet irradiation.