D300F3000 single parabolic off-axis parallel optical tube

(1) Effective diameter: Φ300mm

(2) Wave aberration requirements on the system axis: RMS ≤λ/10 (λ=632.8nm)

(3) Optical path structure: off-axis single-throw objective optical system, no blocking

(4) Focal length: 3m±50mm

(5) The center height of the parallel optical tube: 380mm, the adjustment range of the parallel optical tube base is ≥±30mm, and the parallel optical tube installation bracket is provided with a height of 540mm

(6) Film layer requirements: mirror aluminized film and protective film

(7) Star plate: Provide a set of star plate, diameters of 10um, 20um, 25um, 30um, 40um, 50um, 100um modular design, replaceable