36results about How to "Radiation power is small" patented technology

The present invention relates to a heat therapy appliance (2) for treatment of neonates, with a lying surface on a platform (4) bordered by side walls (8), with a hood (10a, 10b) which is movable between a closed position, in which it bears on the side walls and covers the lying surface for incubator operation, and an open position, in which it frees the bordered lying surface to allow open nursing care, with a radiant heater (14) which is secured on the appliance structure and is directed at the bordered lying surface, with lifting devices (6a, 6b) acting on the platform, and with a control device which is designed to make the angle of inclination of the platform with respect to the horizontal adjustable by actuation of the lifting devices. According to the invention, provision is made that the platform (4) is mounted so as to be adjustable in height, and the control device is also designed, by actuation of the lifting devices (6a, 6b) in the same direction, to make the vertical position of the platform with respect to the side walls adjustable at least between a first position and a second position higher than the first position.

The invention provides an automatic identification passive tag based on visible light communication and a communication system thereof. The passive tag comprises a photocell, a tag chip connected with the photocell, and an LCD (liquid crystal display) screen connected with the output of the tag chip and used for emitting optical signals. The communication system comprises the automatic identification passive tag used for receiving light emitted by the reader-writer and reflecting information of itself to the reader-writer. A light-emitting component for emitting light to the automatic identification passive tag in the reader-writer is a light-emitting diode; and a receiving portion for receiving the optical signals reflected by the automatic identification passive tag in the reader-writer is a photoelectric detector. The automatic identification passive tag and the communication system have the advantages of bidirectional visible light communication and having a storage function; visible light communication light resources can be utilized to provide energy for an RFID (radio frequency identification) tag to realize passive work; and meanwhile, the automatic identification passive tag and the communication system also have the advantage of electromagnetic-radiation-free optical communication. The tag is long in service life, is free of cell replacement, has the functions of storage, data modification, reusability and high security, and can serve as an upgrade product of a paper-based tag.

The invention belongs to the technical field of optical communication, in particular to a high-precision collimated optical antenna transmitting system capable of loading a radial radiation laser source. The design method of the antenna transmitting system is based on the three-dimensional vector reflection theorem, which is composed of an off-axis elliptical rotational surface secondary mirror and a confocal parabolic primary mirror. The radial radiation laser source used in the antenna emission system is a radial radiation linear laser source or a radial radiation ring laser source, which not only significantly improves the radiation power of the light source, but also reduces the difficulty of processing. The invention mainly solves the key technical problem of energy loss in the center of the secondary mirror in the traditional optical transmitting antenna, helps to improve the transmitting accuracy and transmission efficiency of the transmitting antenna in the optical communication system, and can achieve laser beam output without pre-collimation of the semiconductor laser output beam. High-precision collimated transmission of the beam close to the diffraction limit, and it is easy to realize the miniaturization of the optical communication transmission system.

The invention discloses a signal emission method and device. The method and device are applied to a full-duplex wireless communication system in the carrier frequency of millimeter waveband to eliminate interference of an emission signal of an emission antenna array in a reception signal of a reception antenna array of the same transceiver as well as self interference between the emission antenna array and the reception antenna array. The signal emission method comprises that the position of the reception antenna array is determined; and the emission antenna array emits signals by using a wave beam shaping technology. When the signal is emitted in the wave beam shaping technology, the position of the reception antenna array is null position, and the emission antenna array and the reception antenna array are placed in the same transceiver.

An antenna for a RFID writer / reader includes a substrate made of a dielectric substance, and a conductor pattern formed on the substrate and including a feeding point, an open end, an extension part extending from the feeding point, and a spiral part extending spirally from an opposite end of the extension part to the open end. The spiral part includes a part juxtaposed with the extension part. A distance along length directions of the conductor pattern, from a zero point at which a current is zero in the part upon feeding power to the feeding point, to a point at which a line perpendicular to the part and passing through the zero point intersects the extension part, is set to a second distance at which an electric field strength generated as a combination of electric fields generated at these points upon the feeding of power enables communications with the wireless tag.

The invention relates to a compact, substantially eye-safe lighting module (1) comprising an electric power source (2), a voltage transformer (3) and a radiation source for electromagnetic radiation (4), and an output limiter (5) for adjusting the emitted electromagnetic radiation. The output limiter comprises a first detection piece used for electromagnetic radiation (9), wherein the first detection piece used for electromagnetic radiation and the radiation source for electromagnetic radiation are arranged into a module, the voltage transformer is constructed to a step-up & step-down converter. The invention further relates to a pocket tool, especially pocket knife (26) or flat tool card (31), comprising a lighting module (32) for emitting electromagnetic radiation, which is arranged inside the housing (27) and which can be operated by means of an actuation element (30). The lighting module (32) is adapted to emit a monochromatic electromagnetic radiation that is limited with respect to its radiant power.

An antenna includes: a first resonator and a second resonator each having an open end, in which the first resonator and the second resonator are disposed side by side to allow the open ends thereof to be opposed to each other; and a first capacitor connected between the open ends which are opposed to each other.

The present invention provides a Ku-band phased array water surface target detection system with adaptive beam stabilization. The radar array antenna array included in the present invention is connected with the T / R component through the traveling wave coupling feeder line, and the T / R component is connected with a wave control The extension is connected to the calibration front end, the wave control extension is connected to the servo extension and the display control extension, the calibration front is connected to the T / R component and the traveling wave coupling feeder, the calibration front is connected to the transmission channel and the reception channel, the transmission channel is connected to the reception channel, and the reception channel It is connected with the signal processing extension, the signal processing extension is respectively connected with the wave control extension, the servo extension and the display control extension, the display control extension is connected with the wave control extension, and the modular power supply provides power for the detection system. The detection system of the present invention is small in size, can perceive the attitude information of the carrier in real time, and has stable self-adaptive beams.