Formation of a plane wave front.

The composition of the collimator includes:
- Mirror is off-axis parabolic.
- Installation block of off-axis parabolic mirror.
- Mount for fixing and unloading the parabolic mirror.

Benefits:
- Formation of the reference wave front in a wide range of spectrum: from ultraviolet (UV) to infrared (IR) radiation.
- Absence of central screening.

Geometric parameters of an off-axis parabolic mirror
Diameter, mm 620 ± 1
Light diameter, mm 600,0
Focal length, mm 5976.55
Off-axis parameter, mm 600,0
Accuracy of the wavefront being formed for the wavelength, μm λ = 0,6328
by RMS λ / 50,3