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Changchun Sanjie Optoelectronics Technology Co., Ltd. is a professional developer and manufacturer of precision optical systems and image processing systems. The company is located in the optical base of New China—Changchun City, Jilin Province. The company's R&D team is composed of overseas returnees and senior researchers from the Chinese Academy of Sciences. It is dedicated to the research, development, and production of photoelectric detection systems, primarily serving the military, aerospace, and weapon systems. The company's long-term goal is to become a private military enterprise. Since its establishment, the company has actively developed and innovated, growing into a modern optoelectronic enterprise integrating design, production, and sales. Its main products include four major series: opto-mechatronic systems, precision optical lenses, image processing products, and optical design. The opto-mechatronic series develops various spectral photoelectric imaging and measurement systems applicable to scientific research, industrial production, healthcare, information transmission, and more. Key products include radar TV calibration systems, photoelectric imaging target tracking systems, target reconnaissance and positioning pods, machine vision inspection systems, and various photoelectric seeker systems. The optical lens series provides customers with high-quality visible light, ultraviolet, and infrared optical lenses used in photoelectric imaging equipment, optical communication, machine vision, medical instruments, teaching instruments, laser applications, and other fields. Imaging objectives: large relative aperture imaging objectives, fisheye lenses, wide-angle lenses, panoramic annular lenses, refractive and catadioptric long-focus lenses, double telecentric lenses, zoom imaging lenses. Non-imaging objectives: laser collimating lenses, transmissive and reflective laser beam expanders, zoom beam expanders. Other lenses: fθ lenses, eyepieces, special magnifiers. Based on DSP and FPGA image processing modules: image preprocessing modules, image enhancement modules, video target detection modules, video target tracking modules. DSP system development (TMS320 series), FPGA system development, microcontroller series development, image processing technology development, video image preprocessing technology, video target detection technology, video target tracking technology, video target recognition technology. Optical design, image processing system design services. Changchun Sanjie Optoelectronics Technology Co., Ltd. has domestic optical design and image processing design teams capable of providing optical system design and custom special industrial lens services to meet various customer requirements. The company boasts excellent optical, mechanical, and electrical design teams and production staff. Utilizing domestic and international optical cold processing equipment, coating equipment, machining equipment, and high-precision inspection equipment, it processes and produces various opto-mechatronic products for clients worldwide.