33results about How to "Reduce the spread angle" patented technology

A semiconductor laser apparatus capable of reducing a spread angle of emission light with downsizing has an active region between first and second end surfaces. A first reflection structure and a partial reflection structure are provided on the first end surface side. The end surface of the active region is divided into a total reflection region and a partial reflection region in combination with the first reflection structure and partial reflection structure. A laser resonator includes the first reflection structure and partial reflection structure. A second reflection structure is positioned on the way of a resonance optical path of the laser resonator. Light emitted within the active region propagates on a resonance optical path. An induction emission is produced. The semiconductor laser carries out a laser oscillation. Of the light arriving at the partial reflection structure, the portion transmitted through the partial reflection structure is outputted outside the apparatus.

The invention discloses an unpowered powder pumping and continuous dispersive mixing method and an unpowered powder pumping and continuous dispersive mixing device. The device consists of a shaftless spiral dispersive mixing device and a powder pumping device, wherein a pipe body in the shaftless spiral dispersive mixing device is connected with a mixing pipe in the powder pumping device through a flange; the shaftless spiral dispersive mixing device is arranged on a spraying pipeline by connecting; when a spraying vehicle is started, a natural fluid passes through a water pipe and forms a high-speed fluid at a nozzle; the high-speed fluid pumps and compresses gases in a powder pumping mechanism so as to generate negative pressure in the powder pumping mechanism; and outside powder passesthrough the inner parts of a powder pumping pipe, a connection pipe and a mixing chamber under the action of the negative pressure, then flows into a spiral body which is connected with the mixing pipe from the mixing pipe together with the natural fluid, and is dispersively mixed to form a rotational fluid which can be spirally sprayed through the spraying pipeline. The device has low power consumption, can directly reduce the investment cost of manufactures, and is easy to wash and convenient to disassemble and maintain, and the combination of the powder pumping device and the shaftless spiral dispersive mixing device ensures a better dispersive solvation effect of a disinfectant solute.

The invention discloses a portable laser grinding machine, and relates to mechanical equipment. The application position of a grinding wheel of a current grinding instrument is hard to judge when thegrinding instrument is used for grinding parts of a 3D printing machine; if the application position of the grinding wheel is wrong, the parts will be damaged; and when the grinding work is performedin a dark environment, the application position of the grinding wheel is more difficult to judge. The portable laser grinding machine comprises a first handle, a second handle, the grinding wheel, a grinding wheel baffle and a laser locating plate, and the laser locating plate comprises a first spectroscopic reflector, a second spectroscopic reflector, a third spectroscopic reflector, a third spectroscopic reflector and a fourth spectroscopic reflector. When the portable laser grinding machine disclosed by the invention is used, the application position of the grinding wheel can be prejudged and determined through the laser locating plate, and auxiliary lighting can be further provided in the grinding process, so that the grinding work can be done even in the dark environment; disintegrating slag splashing in the polishing process can be blocked by the grinding wheel baffle, and the portable laser grinding machine is portable through batteries and the second handle.

The invention discloses a synchronous display signal light gun, comprising a gun seat, sights, a signal light emitting component and a synchronous display module. The signal light emitting component is arranged on the gun seat, the sight is arranged on the signal light emitting component, and the signal light emits The light signal emission direction of the component is the same as the aiming direction of the sight. The synchronous display module is arranged in the visible position of the gun seat or the signal light emission component. The synchronization display module is used to receive and synchronously display the light signal emitted by the signal light emission component. The invention also discloses a portable lighting communication device comprising the above-mentioned synchronous display signal light gun. The synchronous display signal light gun and the portable light communication equipment provided by the present invention are convenient for transmitting light signals to the aircraft, ensure the transmission of the light signals, have strong maneuverability, are beneficial to effectively guide the aircraft in various environments such as radio communication failure, and are easy to operate. The personnel shall know whether the light signal emitted is correct, so as to ensure the correct transmission of the signal.

The invention relates to a method and a sensor for detecting the relative sliding velocity between a plate and a mould in a stamping process. The method comprises the following steps of: (1) forming an area measured laser image on the measured surface of a steel plate; (2) acquiring the image information of continuously changed patterns and outputting the image information to a signal processor by using an image sensor; (3) analyzing the movement amount of a characteristic area by adopting a self-correlation image processing algorithm, and outputting displacement information; (4) outputting sliding velocity data by using a master control unit; (5) adjusting an acquisition frequency by using the master control unit; (6) obtaining a conversion function for a sliding velocity value and sliding velocity data: y=ax+b; and (7) obtaining an actual relative sliding velocity. By using the detection method and the sensor, the sliding velocity can be measured in a real-time and non-contact way in a plate stamping process. The method has high operability and can be used for determining the sliding velocity of the steel plate relative to the mould in plate stamping deformation by matching a corresponding test device, thereby meeting requirements on scientific research and test.