论文部分内容阅读
介绍了一种新的胶合式全景环形透镜(PAL),改善了全景环形透镜的设计自由度,使全景透镜承担部分校正色差的任务,简化后继透镜组的结构,减少杂散光生成,缩小长焦距全景环形透镜光学系统的体积,并扩大系统的视场。对全景环形透镜的色差和视场进行了理论分析,给出了选择新型全景环形透镜胶合玻璃材料的方法。设计了一个双片胶合式全景环形透镜及其后继转像透镜组,系统焦距为10.3 mm,总长170 mm,孔径为f/3.7,PAL最大口径为70 mm,光谱范围为0.486～0.656μm(可见光谱)。后继转像镜组由8片透镜构成,系统后焦距(BFL)为17 mm。实验结果证明系统像差校正良好。
A new cemented toroidal lens (PAL) is introduced to improve the design freedom of the panoramic toroidal lens, to make the panoramic lens partially correct the chromatic aberration, to simplify the structure of the subsequent lens group, to reduce the generation of stray light and to reduce the long focal length Panorama the volume of the toroidal lens optical system and expand the system’s field of view. The theoretical analysis of the chromatic aberration and the field of view of the panoramic ring lens is given, and the method of choosing a new type of panoramic ring lens cemented glass material is given. A two-chip cemented ring lens and its follow-up lens were designed. The focal length of the system is 10.3 mm, the total length is 170 mm, the aperture is f / 3.7, the maximum diameter of PAL is 70 mm and the spectral range is 0.486 ~ 0.656μm spectrum). The follow-on mirror group consists of 8 lenses with a back focus (BFL) of 17 mm. The experimental results show that the system aberration correction is good.