6 results about "Galvanometer" patented technology

The invention discloses a device and method for pattern processing on the surface of a ceramic ball by using femtosecond laser, and belongs to the technical field of laser processing of ceramic surfaces with irregular shapes. The device comprises programming software, a femtosecond laser amplifier, a half wave plate, a polarizer, a converging lens, a scanning galvanometer, the ceramic ball with the irregular shape and a loading table with a three-dimensional precision displacement platform. The half wave plate, the polarizer, the converging lens and the scanning galvanometer are placed at theoutput end of the femtosecond laser amplifier in sequence. The ceramic ball with the irregular shape is placed on the loading table with the three-dimensional precision displacement platform. Deflection of the scanning galvanometer is controlled by using the programming software, and controlling over the trajectory and speed of femtosecond laser filamentation movement is achieved, so that femtosecond laser processing of three-dimensional parametric patterns on the surface of the ceramic ball is completed, and the device and method for pattern processing on the surface of the ceramic ball by using the femtosecond laser can show the extremely important function in the fields of precision processing of functional ceramic objects and carving of art ceramic products.

The invention relates to the technical field of laser processing, in particular to a filter for decomposing a galvanometer and a servo position. A Bessel filter is of a high-order structure with 4-10orders; preferably, a seven-order Bessel filter. The seven-order Bessel filter comprises a first-order filter and three second-order filters, and the first-order filter and the three second-order filters are connected in series. Compared with the prior art, the seven-order Bessel digital filter has the beneficial effects that the seven-order Bessel digital filter has maximum flat group delay and constant group delay, so that a servo motion track keeps a low-frequency track shape in a passband, the impact on a mechanism is small, and a better acceleration and deceleration effect is achieved. Byusing the seven-order Bessel digital filter, the galvanometer position response is fast, and the synchronization with the servo position can be satisfied, so that the whole track is synchronous, andthe processing effect is the best.

The invention discloses a laser light path system and a method for processing a flexible circuit board by using the laser light path system. According to the key points of the technical scheme, the laser light path system comprises a laser, and the output end of the laser is provided with an acousto-optic deflector for splitting light; and laser divided into two beams by the acousto-optic deflector passes through a zoom beam expander and a half-wave plate respectively and then is combined into one beam through a polarization beam combiner, and a galvanometer scanning system and a focusing lensare sequentially arranged at the output end of the polarization beam combiner. The processing method comprises the following steps: continuously processing one hole site by using the focusing laser and the out-of-focus laser, moving the flexible circuit board, and continuously processing the other hole site. Compared with the prior art that all holes are punched through focusing laser and then punched through out-of-focus laser again, the continuous punching mode can greatly shorten the machining path, and therefore the machining efficiency is greatly improved.

The invention relates to a dynamic marking method and device, computer equipment, a medium and an infrared thermal imager. The dynamic marking method comprises the following steps: acquiring an infrared image of a target scene; based on the infrared image, obtaining a user-defined mark point; acquiring a temperature early warning value of the user-defined mark point; acquiring a temperature value of the custom point; obtaining a coordinate value of the custom mark point on the infrared image, generating an operation instruction, and enabling the laser galvanometer module to emit an indication point in a target scene; judging whether the temperature value exceeds the temperature early warning value or not; and if yes, generating an alarm instruction. According to the dynamic marking method, the self-defined marking points are set according to the infrared images, then the laser galvanometer module is controlled to achieve the polling monitoring function according to the coordinates of the self-defined marking points, and then multi-point monitoring is achieved.