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公开(公告)号：US20180088621A1
公开(公告)日：2018-03-29
申请号：US15619360
申请日：2017-06-09
发明人： Jianqiang ZHU , Gengxiu TANG , Zhigang LIU
CPC分类号： G05G23/00 , F16H25/20 , F16H25/2003 , G05G1/08
摘要： A micro-movement subassembly as a precise driving screw for angle adjustment, comprising a shank, a turnbuckle, and a central cylindrical shaft. The subassembly is precise for linear displacement, good orientation, stable and reliable adjustment, which can be used for a variety of precision-oriented precision micro-angle adjustment of the drive screw.
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公开(公告)号：US20210320471A1
公开(公告)日：2021-10-14
申请号：US17221702
申请日：2021-04-02
发明人： Jianqiang ZHU , Xiaoqi Zhang , Gengxiu Tang , Hua Tao , Zhigang Liu
摘要： A laser driving device and a method for enabling a uniform light field, wherein the laser driving device is a high-power laser driving device that enables a uniform light field on the basis of a narrow-band low-spatial-coherence light and is provided for laser fusion. The narrow-band low-spatial-coherence light is configured as a seed of the laser driving device, an amplification and transmission unit amplifies the seed, a frequency conversion unit converts a frequency of the laser, and a focusing component is configured for laser focusing and uniform illumination.
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公开(公告)号：US20220381619A1
公开(公告)日：2022-12-01
申请号：US17875392
申请日：2022-07-27
发明人： Xingchen PAN , Cheng LIU , Jianqiang ZHU
摘要： A device and method for phase imaging and element detection based on wavefront modulation are provided to overcome the disadvantages of an existing interferometry such as twin image elimination, limit resolution, under-sampling wavefront measurement, and multi-modal measurement. From the perspective of light field encoding, the accurate measurement to a complex amplitude of a light field to be measured is completely achieved by the iterative calculation, and at the same time, a twin image problem may be effectively eliminated, and it has the multi-modal (multi-wavelength) reconstruction ability. Theoretically, it is able to reach the diffraction limit resolution, may be widely used in phase imaging, optical element surface-type detection, polarization distribution measurement and the like, and it has a wide range of applications.
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公开(公告)号：US20200284300A1
公开(公告)日：2020-09-10
申请号：US16732246
申请日：2019-12-31
发明人： Jianqiang ZHU , Chao ZHANG , Gengxiu TANG , Zhigang LIU , Lifeng DU
摘要： A low-drift optical mount comprising a first plate, a second plate, at least one drive rod, at least one collet. A first collet may extend through a bore of the second plate and has an inner screw matching the external screw of a first drive rod. The first drive rod may have a contact end with the first plate and a spring pulls the first plate back toward the second plate. The collet may have at least one slot that extends through the own inner thread surface. The slot can relieve the drift performance induced by grease which fills in the thread fit clearance and further improve the position stability of optical mount.
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5.发明申请公开(公告)号：US20200292382A1
公开(公告)日：2020-09-17
申请号：US16355679
申请日：2019-03-15
发明人： Jianwei YU , Jianqiang ZHU , Xiaoping OUYANG , Baoqiang ZHU , Peiying ZENG , Xiaoyun TANG
摘要： A single shot autocorrelator for measuring duration of an ultrashort laser pulse in the far field, having a beam splitter to form two beams from an input ultrashort pulse: the reflected beam is firstly reflected by two mirrors mounted on a translation stage for adjusting time delay and subsequently a third mirror, and after focused by a spherical convex lens, enters a naturally grown strontium barium niobate crystal along the crystal z axis; the transmitted beam is firstly focused by a spherical convex lens, and after reflected by two mirrors, enters the crystal along the crystal z axis from opposite direction. The crystal is in the common focal regions of two spherical convex lenses and generates the transverse second harmonic pulse beam that is the autocorrelation signal to be recorded, which is imaged with an optical microscope onto a charge coupled device camera mounted perpendicular to the beams.
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公开(公告)号：US20200292036A1
公开(公告)日：2020-09-17
申请号：US16514911
申请日：2019-07-17
发明人： Jianqiang ZHU , Gengxiu Tang , Zhigang Liu , Lifeng Du , Xiangyang Pang , Chao Zhang
摘要： A good-orientation, low-drift micro-movement subassembly for angle adjustment as a precise driving screw for angle adjustment, comprising a slotted knurling handle, a turnbuckle and a central cylindrical shaft. The invention is precise for linear displacement, good orientation, low-drift, stable and reliable adjustment, which can be used for a variety of precision-oriented, small drift, precision micro-angle adjustment of the drive screw.
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