Abstract: The present disclosure provides a flexible hinge structure including: a rigid driving member; a mounting fixed member which is connected to an upper surface of the rigid driving member through a first flexible portion at one end in a longitudinal direction of the upper surface, a first fixing structure being provided on a surface of the mounting fixed member; a displacement output member connected to the upper surface of the rigid driving member through a second flexible portion at the other end in the longitudinal direction of the upper surface; and a pair of guiding fixed members symmetrically disposed on both sides of the displacement output member through third flexible portions, the both sides being parallel to the longitudinal direction of the upper surface of the rigid driving member and a second fixing structure being provided on a surface of each of the guiding fixed members.

Abstract: A flaw detecting apparatus and a method for a plane mirror based on line scanning and ring band stitching are provided. The flaw detecting apparatus comprises: a line scanning detector, an annular illumination source, a rotary table rotatable about a Z axis, a translation table translatable along an X axis and a processor. By translating and rotating the plane mirror to be detected, an entire surface of the plane mirror to be detected can be detected by the line scanning detector, and the flaw of the entire plane mirror to be detected is obtained by a ring band stitching method. The method of line scanning and ring band stitching reduces the imaging distortion, the intermediate data amount, the difficulty in the distortion correction and difficulty in stitching, and improves the detection speed and the detection quality.

Abstract: Embodiments of the present disclosure relate to a measuring method and device for measuring surface defects of a cambered optical element, which belongs to the field of photoelectric detection technology. The device includes a sensor measuring head, a rotatable workpiece table, an automatic sampling device, and a spraying device. The sensor measuring head includes an illumination sub-system and a line scan imaging sub-system, the illumination sub-system provides an illumination of high uniformity and high brightness for a surface of a sample to be detected, the rotatable workpiece table and the imaging sub-system are configured for performing a ring belt scanning and a high resolution scatter imaging to the defects on an optical surface region.

Abstract: Embodiments of the present disclosure relate to a measuring method and device for measuring surface defects of a cambered optical element, which belongs to the field of photoelectric detection technology. The device includes a sensor measuring head, a rotatable workpiece table, an automatic sampling device, and a spraying device. The sensor measuring head includes an illumination sub-system and a line scan imaging sub-system, the illumination sub-system provides an illumination of high uniformity and high brightness for a surface of a sample to be detected, the rotatable workpiece table and the imaging sub-system are configured for performing a ring belt scanning and a high resolution scatter imaging to the defects on an optical surface region.

Abstract: A flaw detecting apparatus and a method for a plane mirror based on line scanning and ring band stitching are provided. The flaw detecting apparatus comprises: a line scanning detector, an annular illumination source, a rotary table rotatable about a Z axis, a translation table translatable along an X axis and a processor. By translating and rotating the plane mirror to be detected, an entire surface of the plane mirror to be detected can be detected by the line scanning detector, and the flaw of the entire plane mirror to be detected is obtained by a ring band stitching method. The method of line scanning and ring band stitching reduces the imaging distortion, the intermediate data amount, the difficulty in the distortion correction and difficulty in stitching, and improves the detection speed and the detection quality.