1599 results about "Xenon lamp" patented technology

An endoscope device obtains tissue information of a desired depth near the tissue surface. A xenon lamp (11) in a light source (4) emits illumination light. A diaphragm (13) controls a quantity of the light that reaches a rotating filter. The rotating filter has an outer sector with a first filter set, and an inner sector with a second filter set. The first filter set outputs frame sequence light having overlapping spectral properties suitable for color reproduction, while the second filter set outputs narrow-band frame sequence light having discrete spectral properties enabling extraction of desired deep tissue information. A condenser lens (16) collects the frame sequence light coming through the rotating filter onto the incident face of a light guide (15). The diaphragm controls the amount of the light reaching the filter depending on which filter set is selected.

An endoscope device obtains tissue information of a desired depth near the tissue surface. A xenon lamp (11) in a light source (4) emits illumination light. A diaphragm (13) controls a quantity of the light that reaches a rotating filter. The rotating filter has an outer sector with a first filter set, and an inner sector with a second filter set. The first filter set outputs frame sequence light having overlapping spectral properties suitable for color reproduction, while the second filter set outputs narrow-band frame sequence light having discrete spectral properties enabling extraction of desired deep tissue information. A condenser lens (16) collects the frame sequence light coming through the rotating filter onto the incident face of a light guide (15). The diaphragm controls the amount of the light reaching the filter depending on which filter set is selected.

The invention relates to an online water quality monitoring device and method based on full spectra. The device comprises a pulse xenon lamp, a cleaning module, a spectrum measuring module and a control unit. One end of the cleaning module is connected with the pulse xenon lamp, the other end of the cleaning module is connected with the spectrum measuring module, the control unit controls the pulse xenon lamp to emit pulse light, controls the cleaning module to clean a measuring surface as needed and carry out light path switching, and controls the spectrum measuring module to read the light signal intensity of each waveband. According to the online water quality monitoring device and method based on full spectra, ultraviolet visible full waveband absorbing spectra are adopted for measuring the water pollution condition, factors such as COD, BOD, TOC, nitrate, nitrite, the turbidity and chromaticity can be measured, and the online water quality monitoring device and method based on full spectra have the advantages of being high in measuring precision, short in measuring time, large in number of monitoring factors, free of a reagent and secondary pollution and the like; the changing condition of water pollution is reflected in real time, and corresponding chemical models can be established according to ingredients of field water samples to meet the demands for measuring different water bodies.

This invention provides a solar simulator measurement method capable of high-accuracy measurements with fast-response photovoltaic devices as well as with slow-response photovoltaic devices, and a solar simulator for implementing the method. A flash having a pulse waveform with a flattened peak is generated from a xenon lamp. The flash is sensed by an irradiance detector, its irradiance measured, and the irradiance of the light source is adjusted to fall within a prescribed narrow range based on the detected irradiance value. Then, the flash with irradiance within the prescribed range irradiates photovoltaic devices under measurement, and the current and the voltage output by the photovoltaic devices are measured at multiple points while a load of the photovoltaic devices is controlled. This process is repeated with multiple flashes to obtain an I-V curve for the photovoltaic devices.

A method for preparing a high-efficiency bactericide silver / graphite carbon nitride composite material, firstly using melamine to prepare graphite phase carbon nitride, then adding silver nitrate solution to the graphite phase carbon nitride dispersion, and placing the obtained mixed solution in a magnetic Stir on a stirrer for 2 hours, then irradiate for 2 hours under a 300W xenon lamp, and then separate, wash and dry the obtained suspension to obtain a silver / graphite phase carbon nitride composite material. The advantages and beneficial effects of the present invention are: compared with traditional fungicides, the Ag / g-C prepared by the present invention 3 N 4 There are no problems such as bactericidal by-products and bacterial resistance, and pure g-C 3 N 4 In contrast, it has a strong bactericidal ability under visible light irradiation, so it has a good application prospect.

The invention discloses an integrated environment test device, which comprises an industrial personal computer, an aging test box, a water storage tank and a spraying water pump, wherein an xenon lamp and a shower nozzle are arranged inside the aging test box, the shower nozzle is connected with a water outlet of the spraying water pump, a water inlet of the spraying water pump is connected with the water storage tank, and a power input end of the xenon lamp and the power input end of the spraying water pump are respectively accessed to the industrial personal computer. Multiple test factors are integrated inside one aging test box to actually simulate the working situation of an electric power device under an all-day severe environment and an extreme climate environmental condition, and evidence can be provided for the design and manufacturing of different electric power devices and composite material insulation products in the power transmission and transformation industry through the test data, so that the safe running of an electric network can be guaranteed.

The invention provides a device and a method for synthesizing ammonia through photoelectrocatalysis nitrogen fixation and relates to the technical field of electro-catalysis electrolysis. The device for synthesizing ammonia through photoelectrocatalysis nitrogen fixation comprises a photoelectric composite membrane, wherein the photoelectric composite membrane consists of a bipolar membrane and anano nitrogen fixation catalysis membrane and is used for dividing an anode chamber and a cathode chamber into a double-chamber electrolytic bath; the bipolar membrane comprises an anion exchange membrane and a cation exchange membrane; the nano nitrogen fixation catalysis membrane is carried on the surface of the cation exchange membrane; an electrolyte solution is put into the anode chamber; thecathode chamber is filled with nitrogen; a BiVO4 or Pt electrode is adopted as an anode; a nitrogen fixation catalyst membrane is used as a cathode; a container filled with dilute sulfuric acid is arranged in the cathode chamber and is used for absorbing generated ammonia gas; a xenon lamp is adopted as a light source; an external direct-current power supply is adopted to provide electric field force; a positive pole and a negative pole of the external direct-current power supply are respectively connected with the anode and the cathode. The device is adopted for photoelectrocatalysis nitrogen fixation in a non-water solution, and has benefits that hydrogen evolution side reactions can be effectively inhibited, and the photoelectrocatalysis nitrogen fixation efficiency can be improved.

When an observation state by an infrared LED 10 is changed to a photographing state by a xenon lamp 3, a movable mirror 16 is pulled upward and an optical path is switched to an image sensor 17 side. A light guide 22a is shifted by an alignment index drive motor 23 so that an incident portion of an alignment index is shifted from a visible LED 22b to direct to an infrared LED 22c. An outgoing portion of the light guide 22a is set at a position where an image is formed on the image sensor 17 by a wavelength of the infrared LED 22c when an operation distance is appropriate. While changing a luminescent color, a position of a luminescent point of the alignment index is changed by switching the LED by the shift of the light guide 22a.