Setting Up a Laboratory Test Bench for Optical Verification and Testing of the EnVisS Camera Prototype
SPACE TELESCOPES AND INSTRUMENTATION 2024 OPTICAL, INFRARED, AND MILLIMETER WAVE(2024)
CNR IFN Padova
Abstract
The work will describe the activities performed in the framework of the realization of a laboratory set-up for the integration and testing of a prototype of the EnVisS fish-eye camera. The EnVisS instrument is an all-sky camera conceived, and specifically designed, for Comet Interceptor, an ESA Fast mission foreseen to launch in 2029 to study a dynamically new comet. EnVisS will be mounted on a spinning stabilized probe performing a fast, about 20 hours, fly-by of the comet; the instrument task is to image the full coma of the comet in the 550-800 nm wavelength range to study the dust properties and its distribution. At the CNR-IFN premises in Padova-Italy, an ad-hoc laboratory test bench has been devised and set-up to integrate the EnVisS prototype and allow the verification of its optical performance. The final goal of the set-up will be twofold. At first, the EnVisS breadboard optical head developed by Leonardo S.p.A. (Florence-Italy) will be assembled with a dummy filter and a COTS detector package. After, together with the verification of the prototype optical performance, carry on a simulation of the acquisition scheme foreseen for the camera in flight. In this paper, the requirements for the set-up and the solutions adopted for its realization will be presented. An overview of the results obtained during the commissioning of the lab set-up, performed with some commercial elements (i.e. a fish-eye lens coupled to a camera), will be given.
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Key words
laboratory test set-up,optical performance verification,fish-eye lens,EnVisS,Comet Interceptor
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