158results about How to "Easy to use outdoors" patented technology

A radiographic image capturing apparatus has a radiation source device including a radiation source for outputting radiation, a detector device including a radiation detector for detecting radiation that is transmitted through a subject when the subject is irradiated with radiation by the radiation source, and converting the detected radiation into a radiographic image, and an electric power supply limiting unit limiting a route for supply of electric power at least between the radiation source device and the detector device, and supplying electric power between the radiation source device and the detector device.

A radiographic image capturing apparatus has a radiation source device including a radiation source for outputting radiation, and a detector device including a radiation detector for detecting radiation that is transmitted through a subject when the subject is irradiated with radiation by the radiation source, and converting the detected radiation into a radiographic image. At least one of the radiation source device and the detector device has an electric power supply limiting unit for limiting supply of electric power, and the electric power supply limiting unit controls supply of electric power between the radiation source device and the detector device, depending on timing of an image capturing process.

The invention discloses a 5V output mobile power supply. The conventional mobile power supply is limited in outdoor use, low in output power and lack of a perfect protection device, and a safety accident is easily caused. The 5V output mobile power supply comprises a lithium battery, a singlechip control circuit, a charging circuit, a short-circuit protection circuit, a temperature and over-discharge protection circuit, a 5V output circuit and an electric quantity display circuit, wherein the first output end of the charging circuit is electrically connected with the input end of the lithium battery, and the second output end of the charging circuit is electrically connected with the input end of the singlechip control circuit; the input end of the short-circuit protection circuit is electrically connected with the output end of the lithium battery, and the output end of the short-circuit protection circuit is in signal connection with the input end of the temperature and over-discharge protection circuit; the output end of the temperature and over-discharge protection circuit is in signal connection with the input end of the 5V output circuit; the output end of the singlechip control circuit is in signal connection with the input end of the electric quantity display circuit; the temperature and over-discharge protection circuit is in signal connection with the singlechip control circuit; and the lithium battery is electrically connected with the singlechip control circuit. The 5V output mobile power supply adopts a plurality of charging modes, and is safe and reliable.

A multifunctional foldable lifting stool comprises a stool panel and four supporting legs, wherein each of the four supporting legs have a sleeve structure and can be lifted, semi-circular tables capable of being folded with the stool panel are arranged at the periphery of the stool panel; and drawers are arranged between two supporting legs below the stool panel. By adopting the above structure, the stool can be transformed into a table by adjusting the four supporting legs according to requirement, thus providing convenience in outdoor use for students.

The invention relates to an optical diffusion agent for an acrylic optical diffusion board and a preparation method of the optical diffusion board. The acrylic optical diffusion board comprises the following components in percentage by mass: 97.0-99.5 percent of polymethyl methacrylate and 0.5-3.0 percent of the optical diffusion agent which is a random copolymer of styrene and methylacryloyl propyl phenyl polyhedral oligomeric silsesquioxanes (MAPhPOSS). After the MAPhPOSS is copolymerized with styrene, even if the using amount of styrene monomers is small, the contribution of a nanoscale inorganic core can reach the same shading coefficient and light scattering property, and organic MMA groups in the POSS can avoid phase separation due to excessive addition amount, so that the optical diffusion board is uniform in surface, phase separation stripes are avoided, and a good diffusion body is obtained. The acrylic optical diffusion board can be applied to the field of outdoor photoelectric display of outdoor lamps, advertising light boxes, billboards, light source covers and the like with light-emitting diodes (LEDs) as light sources.