Rectangular wide light spot shaping imaging system and centroid positioning method

• Main Authors: FENG ZHEMING, PAN ZHONGHAN, MINAMI, TAKAE, XU YUFENG, WANG YIXUAN, TAO WEI, DONG JINGXIN
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention relates to the technical field of laser ranging, in particular to a rectangular wide light spot shaping imaging system and a centroid positioning method.The rectangular wide light spot shaping imaging system comprises a laser diode light source, a Powell prism, a cylindrical lens and an aperture diaphragm which are sequentially arranged along an incident light path, and an optical filter, a receiving lens set and an image acquisition unit which are sequentially arranged along a reflected light path; wherein the cylindrical lenses comprise two industrial-grade cylindrical lenses which are mutually orthogonally mounted in an incident light path in sequence, the cylindrical lens in the X direction is used for collimating X-direction laser, and the cylindrical lens in the Y direction is used for compressing linear laser generated by the Powell prism, so that a rectangular collimated light spot is generated; the receiving lens group is a three-piece type lens which is placed according to the Saborne