【摘要】 将多像素光子计数器（Multi-pixel Photon Counter, MPPC）应用于三维成像,MPPC与光学成像结构相结合,对微光成像实验平台进行了光路设计。该设计将平面探测改为实物立体探测,同时实现极低照度下的目标成像。设计了一个焦距范围为30～85 mm,视场大于20°,场曲小于2%的光学成像结构,并通过光学设计软件对光学结构进行优化,使其满足设计指标。搭建了二维微光成像系统进行实物物体探测。通过实验验证,该系统可以实现10^-4 lx以及更低照度的微光环境下,40 cm距离的目标物体的二维成像。更多还原

【Abstract】 A multi-pixel photon counter（MPPC） is applied to three-dimensional imaging, and combined with the optical imaging structure an optical path is designed for the LLL imaging experimental platform. The optical path design changes the planar detection to physical stereoscopic detection, and achieves target imaging at very low illumination. In the light path section, the light path design principle is introduced, an optical imaging structure with a focal length of 30～85 mm, a field of view greater than 20° and a field curvature of less than 2% is designed. The optical design software is used to optimize the optical structure to meet the design indexes. A two-dimensional LLL imaging system is built to detect real objects. It is verified by experiments that the system can realize the two-dimensional imaging of the target object with a distance of 40 cm under LLL environment with 10^-4 lx and lower illumination.更多还原