Radiation-resistant lens for nuclear energy with focusing to a finite distance F '= 17 mm F # / 3.2-15

Radiation-resistant lens for nuclear energy with focusing to a finite distance F = 17 F#/3.2-15

Parameter Value
Spectral range, μm 0,5-0,75
Main wavelength (λ0), μm 0,65
Focal length at λ0, mm 17
Aperture ratio 1:3,2-15
Linear field in image space, 2y', mm 11
Maximum distortion, % -0,9
Back focal length, mm 10,1
Optical system length, mm 14,5
Minimum finite distance to object, m 0,05-0,3

MTF (object at 0.05 m)

MTF (object at 0.3 m)