Thermo-opto-mechanical analysis of a cubesat lens mount

Abstract

A potential cubesat payload for low resolution study of planet Earth from space is an optical imaging system. Due to budget, space, and time constraints, commercial photographic lenses of the double Gauss type are prime candidates for limited duration cubesat optics. However, photographic objectives are not designed to operate in a space environment and modifications are usually necessary. One method of improving optical performance of the objective over large temperature variations is by replacing the stock lens mount with a different material. This paper describes the thermoopto-mechanical analysis of several lens mount materials for a double Gauss imaging system suitable for a cubesat.

A framework for small satellite deployable structures and how to deploy them reliably

“…Stabilization is usually provided by overlapping adjacent tube segments. Examples include the magnetometer boom on QuakeSat 27 , the way AggieSat1, AggieSat2 28 and RAFT 29 deployed from each other, revealing telescoping antennas, the secondary reflector on the deployable petal telescope 30 .…”

“…This is accomplished by a high tolerance hinge pin, hinge pin hole, and hard stop distanced from the hinge. These are commonly used for precision applications like reflectarray antennas 17,82 and telescope mirrors 30 .…”

Investigation of the operating conditions influence on the optical telescope performance when capturing star images

“…Вышеуказанные требования к точности астроориентации позволяют определить допустимые температурные перепады в толще оптических эле-ментов на уровне 0,1 -0,2 °С [5]. Температурные перепады также влияют на точность астроориентации и для малоразмерных КА (МКА), в частности нанокласса, чему до настоящего времени должного внимания не уделялось, несмотря на важность этой проблемы [6].…”