To improve the adaptability of aerial reflective opto-mechanical structures (mainly including
the primary mirror and secondary mirror) to low-temperature environments, typically below−
40° C, an optimized thermal control design, which includes passive insulation and
temperature-negative feedback-variable power zone active heating, is proposed. Firstly, the
relationship between conventional heating methods and the axial/radial temperature
differences of mirrors with different shapes is analyzed. Based on the heat transfer analyses …

To improve the adaptability of aerial reflective opto-mechanical structures to lowtemperature
environments, an optimized thermal control design is proposed. Firstly, the relationship
between conventional heating methods and axial/radial temperature differences of mirrors
with different shapes is analyzed. Based on heat transfer analyses, it is pointed out that
optimized thermal control design is necessary to ensure the temperature uniformity of the
fused silica mirror and take into account the temperature level when working in low …