Selecting a lens or optical system for use in space – it must comply with basic requirements to survive this harsh environment. They must be designed to withstand launch into space without any loss of integrity or performance. Your lens or optical system must be constructed of specific materials that will not outgas when exposed to the vacuum of space. Athermalization is important as deployments in space are subject to large temperature changes that can affect image quality. Long term exposure to cosmic radiation will turn standard glass brown, so non-browning radiation resistant glass should be considered to extend the operational life of your lens.
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