A disruptive concept making use of cutting-edge technologies for the development of fast, adaptive, and dynamic optical surfaces for achieving high-contrast measurements
The growing demand for high-performance satellite optical payloads with low size, weight, and power requirements, has driven the need for advanced optical systems capable of delivering superior imaging performance within strict mass and volume constraints. Freeform optical designs are well suited to compact sensor payl...
C. Chan, J. Choi, C. Smith et al.· Astronomical Telescopes + In...· 0 citations
Large-aperture space telescopes are fundamentally constrained by launch vehicle fairing volume, motivating the development of deployable inflatable reflectors that can be packaged compactly and inflated on orbit. While inflatable membrane optics offer dramatic gains in areal density and packaging efficiency, their long...
A. Chandra, Zac Chen, Changgon Kim et al.· Astronomical Telescopes + In...· 0 citations
F-θ scanning lenses represent a critical component in laser systems for high-end intelligent manufacturing and optoelectronic applications, as they directly govern the system’s positioning accuracy, imaging resolution, and processing quality. In this work, we propose an ultra-thin (0.625 mm) single-sided monolithic f-θ...
Space Domain Awareness (SDA) is crucial for defense and civilian use. Ground based high resolution imaging with large telescopes and adaptive optics can deliver detailed image sequences of resident space objects (RSO), complemented by additional signatures for characterization. ONERA, together with CNRS/OSU Pythéas, is...
T. Fusco, C. Petit, N. Védrenne et al.· Astronomical Telescopes + In...· 0 citations
For the light-collected optical elements used in astronomical or space applications, there is a requirement to increase the effective area as much as possible relative to the physical area. For example, segmented mirrors such as the primary mirror of the Thirty Meter Telescope (TMT) or that of the ELT, it is necessary...
The ESO Extremely Large Telescope (ELT) requires a dedicated coating facility capable of processing all of its large mirrors—M2, M3, M4, and M5—within a single, highly flexible industrial-scale system. During telescope operations, its mirrors and coatings are exposed to open air and the dome environment, allowing dust,...
Christian Ramirez, C. Araujo-Hauck, Andrés González et al.· Astronomical Telescopes + In...· 1 citation
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