A smartphone-based arbitrary scene projector for detector testing and instrument performance evaluation
Thibaut Prod'homme (1), Patricia Liebing (1,2), Peter Verhoeve (1),, Ilya Menyaylov (1), Fr\'ed\'eric Lemmel (1), Hans Smit (1), Sander Blommaert, (1), Dennis Breeveld (1), Brian Shortt (1) ((1) European Space Agency, ESTEC,, The Netherlands, (2) Leiden Observatory

TL;DR
This paper presents a novel smartphone-based scene projector using high-resolution OLED screens for testing sensors and evaluating instrument performance, particularly in high-precision astronomy applications like radiation-induced CTI measurement.
Contribution
It introduces a new experimental setup leveraging smartphone OLED screens for high-precision sensor testing and instrument evaluation, inspired by concepts from JPL and ESA.
Findings
Achieves high optical performance suitable for sensor calibration
Enables testing of radiation-induced CTI in space instruments
Demonstrates potential for high-precision astronomical instrument verification
Abstract
Using the high-resolution OLED screen of a smartphone to project arbitrary scenes and patterns can open a complete new dimension for testing sensors in the visible. Based on an original concept from JPL (Jet Propulsion Laboratory), this contribution describes a new experimental setup designed to achieve the demanding performance of its first application by ESA (European Space Agency): the evaluation of radiation-induced CTI (Charge Transfer Inefficiency) on Euclid's weak lensing measurement. We show that pushed to its limits especially in terms of calibration such a simple experiment can deliver a level of optical performance high enough to be applied in the verification of high-precision astronomy instrument performance.
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