Ultra-light flexible supporting optical system and assembling method thereof

The invention relates to an ultra-light flexible supporting optical system and an assembling method thereof. The problems that an existing optical lens is difficult to be compatible with severe thermal environment conditions, the overall weight and the outer envelope size are large, and the processing and adjustment time cost is high are solved. The system comprises a main lens cone and N optical elements, wherein the main lens cone comprises N + 1 non-supporting modules and N supporting modules which are axially arranged in a staggered manner; the supporting module comprises at least three supporting units in the circumferential direction of the main lens barrel, and each supporting unit comprises an elastic supporting section and a flexible supporting section which are arranged in the circumferential direction; a glue retaining groove is formed in the inner wall of the elastic supporting section, and a glue injection hole is formed in the glue retaining groove; the flexible supporting section comprises a we