Remote sensing satellites require very accurate pointing to specific locations of interest with high resolution and small latency. Therefore, the space imaging systems attempted to achieve the possible highest ground resolution with minimum cost as possible. In this paper, design process of an electro-optical imaging payload is described considering the limited weight and small volume in addition to minimum power consumptions. The most promising prospects for high resolution imaging are connected with passive optical sub-systems, especially push broom one. For design a multiband Space remote sensing payload with 4°7′ field of view that operates in multi spectral bands and a panchromatic band, it requires the high speed Schmidt–cassegrain objective. The most promising prospects for high resolution imaging are connected with passive optical sub-systems, especially push broom one. The Schmidt-Cassegrain objective is a catadioptric objective that combines a Cassegrain reflector’s optical path with a Schmidt corrector plate to make a compact objective that uses simple spherical surfaces only. Because of the limited weight of the camera (22.2 kg), the multispectral consists of only one single optical system large F-Number (F5) and provided with spectrum splitter.

In addition, the key points in design of such types of cameras were listed as well as clarifying the optical design of such objective.

遥感卫星需要以高分辨率和小延迟非常准确地指向特定的感兴趣位置。因此，空间成像系统试图以尽可能低的成本实现可能的最高地面分辨率。在本文中，除了最小的功耗之外，还描述了考虑到有限的重量和小体积的电光成像有效载荷的设计过程。高分辨率成像最有前途的前景与无源光学子系统有关，尤其是推扫帚一。为了设计在多光谱波段和全色波段工作的具有 4°7' 视场的多波段空间遥感有效载荷，它需要高速施密特卡塞格林物镜。高分辨率成像最有前途的前景与无源光学子系统有关，尤其是推扫帚一。Schmidt-Cassegrain 物镜是一种折反射物镜，它将 Cassegrain 反射器的光路与施密特校正板相结合，从而形成一个仅使用简单球面的紧凑物镜。由于相机的重量有限（22.2 kg），多光谱仅由一个大 F 数 (F5) 光学系统组成，并配有分光器。

此外，还列出了此类相机的设计要点，并阐明了此类物镜的光学设计。