Measure MTF - Interference – non-spherical lens

• All MTF measurements can be accomplished in finite, infinite and afocal measurement position
• Modulation transfer function on axis and off axis
• Through Focus MTF
• Line Spread Function
• Phase Transfer Function
• Effective Focal Length
• FFL/BFL (relative)
• Distortion
• Astigmatism
• Field Curvature
• Max. off-axis angle     ± 135
• Spectral range:
• UV:      250nm … 400nm
• VIS:     400nm … 700nm
• NIR:     700nm … 1000nm
• SWIR:  1000nm … 1700nm
• MWIR: 3µm … 5µm
• LWIR:  7µm … 13µm
• Max. image height: ± 50mm
• Spatial frequency (in specification)
• Max. spatial frequency:
• 200 lp/mm in UV
• 500 lp/mm in VIS / NIR
• 150 lp/mm in SWIR
• 100 lp/mm in MWIR
• 60 lp/mm in LWIR
• MTF:
• + Accuracy on-axis and off-axis         ±0.02MTF on axis
• + Repeatability:            ±0.01MTF
• EFL
• + Accuracy :±0.2%
• Distortion
• + Accuracy (without / with encoder): ± 0.7% / ± 0.25%
• + Repeatability (without / with encoder): ± 0.3% / ± 0.1%
• Lateral chromatic aberration
• + Accuracy: ± 0.5 µm
• + Repeatability: ± 0.3 µm
• Longitudinal chromatic aberration
• + Accuracy: ± 1 µm
• + Repeatability: 0.2 µm
• CRA
• + Accuracy: ± 1°
• + Repeatability: ± 0.4°
• FFL (relative)
• + Accuracy: ± 2 µm
• + Repeatability: ± 1 µm
• Astigmatism
• + Accuracy: ± 4 µm
• + Repeatability: ± 1 µm
• Field curvature
• + Accuracy: ± 2 µm
• + Repeatability: ± 1 µm

Includes: Ice machine, Collimator, viewfinders, microscopes, lenses versatile, objective lenses, fixture, jig pit universal glasses, controlled rotating fixture, turntable, graduated table, resource blocks ...

- Collimator:

  + The diameter of the objective lens: 148mm

  + The focal length of the objective lens: 1.600mm

- Viewfinder (telescope):

+ The diameter of the objective lens: 50mm

  + 430mm focal length of the objective lens

  + Amplification: x20

- Microscope:

  + Zoom: x32; 80; 120

  + Magnification and numerical aperture of the objective lens: x8 X0.2

  + Eyepiece magnification of Huygens: x4; 10; 15

- Tables graduated:

  + Journey: 25mm

- Rotary tables horizontal axis: ± 3