二元光学透镜在资源卫星中的应用

使用一种基于二元光学透镜的分光成像及消色差原理的新方法来设计资源卫星的中继光学系统。通过分析二元光学透镜的分光成像原理、消色差原理、衍射效率与阶数和工作波长及设计波长的比之间的关系,又考虑到单独设计制造二元光学透镜的难度,采用折衍混合成像光学系统来拟定资源卫星中继光学系统的设计方案,给出用ZEMAX软件设计的具体结果。设计实例及分析结果表明,包含二元光学透镜的折衍混合成像系统可以很好的实现光谱波段分离,用于资源卫星的光学系统具有一定的适用性。

Application of binary optical lens in resource satellite

A new method based on the spectrum-dividing and achromatic principles of binary optical lens to design the relay optical system of the resource satellite is proposed. The principle of spectrum-dividing,the principle of achromatic aberrations, and the relationship of diffractive efficiency with the number of levels in the grating, operational wavelength and design wavelength of binary optical lens are systematically studied. Taking into account the difficulties of designing and fabricating a binary optical lens, two diffractive-refractive hybrid imaging systems are used to design the relay optical system. The design progress and results are evaluated with ZEMAX software. The results show that using diffractive-refractive hybrid imaging systems to design the relay optical system is reasonable.