MTF Test Benches
We supply optical test equipment for assessing the quality of visible and infra-red lenses. These benches can be supplied for Research and Development applications, or for Production Testing.
Visible MTF Test Bench
| Detector | Resolution, Cell Size |
| Standard Resolution CCD Camera | 0780 x 0582, 8.33 um |
| High Resolution CCD Camera | 1388 x 1038, 6.45 um |
| Very High Resolution CCD Camera | 2452 x 2056, 3.45 um |
| Cooled Scientific CCD Camera | 1344 x 1024, 6.45 um |
| Photomultiplier Tube | 1 um slit aperture |
| Field Angle Generator | Range, Accuracy, Load Capacity |
| Rotary Stage Table | +/-120 degrees, 5 secs, 25 kg |
| Swinging Arm (Linear Stage) | +/-030 degrees, 5 secs, 50 kg |
| Swinging Arm (Linear Stage | +/-045 degrees, 5 secs, 50 kg |
| Swinging Arm (Circular Stage) | +/-120 degrees, 5 secs, 200 kg |
| Beam-Steering Mirror | +/-020 degrees, 5 secs, NA |
| Collimator | Diameter, Wavefront Accuracy |
| Off-Axis Parabola | 100 – 500 mm, lambda/10 @ 633nm |
| Achromatic Doublet/Triplet | 025 – 100 mm, lambda/50 @ 633nm |
| Light Source | Description |
| Visible Object Generator | 50W T-H Lamp, condensor optics |
| Fibre-Optic Light Source | 50W T-H Lamp, fibre-optic cable |
| Motorised Stages | Specification |
| Focus, Field, Height | Linear, 50 or 100 mm travel |
| Field Angle | Linear or Rotary |
| Lens Rotation | Rotary 360 deg, up to 200mm aperture |
Infrared MTF Test Bench
| Detector | Specification |
| MWIR (3- 5 um) detector | LN2 cooled, 100mm nozzle, 10um aperture |
| LWIR (8-12 um) detector | LN2 cooled, 100mm nozzle, 10um aperture |
| Field Angle Generator | Range, Accuracy, Load Capacity |
| Rotary Stage Table | +/-120 degrees, 5 secs, 25 kg |
| Swinging Arm (Linear Stage) | +/-030 degrees, 5 secs, 50 kg |
| Swinging Arm (Linear Stage | +/-045 degrees, 5 secs, 50 kg |
| Swinging Arm (Circular Stage) | +/-120 degrees, 5 secs, 200 kg |
| Beam-Steering Mirror | +/-020 degrees, 5 secs, NA |
| Collimator | Diameter, Wavefront Accuracy |
| Off-Axis Parabola | 100 – 500 mm, lambda/10 @ 633nm |
| Light Source | Description |
| IR Object Generator | 30W glow-bar, rotateable, chopped |
| Motorised Stages | Specification |
| Focus, Field, Height | Linear, 50 or 100 mm travel |
| Field Angle | Linear or Rotary |
| Target Azimuth | Rotary 0-90 deg |
| Lens Rotation | Rotary 360 deg, up to 200mm aperture |
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