published:2020-03-27
the effective focal length is 3000mm; the working spectrum of the reflective element is in the range 300nm~1100nm, and the working spectrum of the transmission element is in the range of 400nm~900nm;
transmittance change: tpv≤11.5%;
system wave aberration: rms<λ/20 (λ=632.8nm);
the parallelism of the emergent light is superior to 0.836 ″ (φ≤150mm); thermal stability of optical axis: superior to 0.89″/°c (20°c±5°c).
customer: a university
