激光与光电子学进展, 2017, 54 (10): 102201, 网络出版: 2017-10-09   

用于车辆目标识别的中远距离车载镜头设计 下载: 647次

Design of Medium and Long Distance Automotive Lens for Target Recognition of Vehicles
作者单位
吉林大学汽车工程学院, 吉林 长春 130022
摘要
为了提高无人驾驶汽车对中远距离车辆目标的识别准确率, 满足无人驾驶汽车对前方预瞄距离的要求, 通过理论计算以及光学设计软件ZEMAX-EE, 研究设计了一款适合安装于乘用车上的中远距离车载镜头。为了满足车载镜头在实际使用过程中对成像范围的要求, 利用成像景深公式计算了对准距离为无穷远时, 不同入瞳直径对应的成像范围, 从而确定了满足实际使用条件、易于设计和检验的镜头参数设计方案。车载镜头的焦距为40 mm, 视场角为8.6°, 入瞳直径为7 mm,景深为30 m~+∞, 系统总长小于38 mm。仿真分析结果表明, 所设计车载镜头具有良好的成像质量, 能够满足实际的使用要求。
Abstract
In order to improve the recognition accuracy of medium and long distance vehicle targets and meet the requirements of the forward preview distance of pilotless automobile, a type of medium and long distance automotive lens suitable for passenger cars is studied through theoretical calculation and optical design software ZEMAX-EE. To meet the requirements of the imaging range of the vehicle lens during actual use, the imaging range with different entrance pupil diameters is calculated by using the depth of field formula, when the aiming distance is infinity. Then the lens parameter design scheme which satisfies actual service conditions is determined, and it is easy to design and test. For the automotive lens, the focal length is 40 mm, the field of view is 8.6°, the entrance pupil diameter is 7 mm, the depth of field is 30 m-+∞, and the system total length is less than 38 mm. The simulation results show that the designed lens has good image quality and can meet the design requirements in actual use.

张思远, 谢飞, 王建华. 用于车辆目标识别的中远距离车载镜头设计[J]. 激光与光电子学进展, 2017, 54(10): 102201. Zhang Siyuan, Xie Fei, Wang Jianhua. Design of Medium and Long Distance Automotive Lens for Target Recognition of Vehicles[J]. Laser & Optoelectronics Progress, 2017, 54(10): 102201.

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