ImageMaster®
World standard MTF Measurement System
Image quality testing for small and large lenses
The devices ImageMaster® HR and Universal provide an outstanding level of accuracy and flexibility when testing the MTF (modulation transfer function). The equipment is modular and upgradeable to allow for custom configuration as test requirements change. The instrument can be configured for testing optical systems with the object at infinity or object and image at finite conjugates. The accuracy of the measurement is traceable to international standards.
The ImageMaster® HR offers versatile functionality for testing the image quality of small and medium-sized lenses, e.g. for smartphone, photo and film cameras. For medium and larger lenses, e.g. in camera lens manufacturing and the development of aerial lenses or lenses for space exploration, the horizontally mounted ImageMaster® Universal offers the highest accuracy and maximum stability.
ImageMaster® HR UltraPrecision
Ultra-precise image quality testing
For ultra-precise measurement of MTF and other optical parameters TRIOPTICS has developed the top model among the MTF test stations of our HR product series – the ImageMaster® HR UP.
- High-precision air bearing sample holder
- Increased mechanical stability
- Enhanced measurement reproducibility
ImageMaster® HR
The preferred MTF test station worldwide
The ImageMaster® HR fulfils the high customer requirements for accuracy and flexibility in the measurement of image quality.
- Fully or semi-automated, ultra-accurate, multi-functional MTF test station
- Accuracy traceable to international standards
- MTF measurement at finite and infinite conjugates
ImageMaster® HR MAX
Testing with mirror collimators
ImageMaster® HR MAX has been developed for high-precision MTF testing in the VIS and IR range.
- Available for NUV/VIS/NIR spectrum
- Includes a high-quality mirror collimator, halogen light source and high resolution camera sensor
- Accuracy traceable to international standards
ImageMaster® HR MAX IR
High End MTF testing in the IR range
ImageMaster® HR MAX IR is designed for the measurement of MTF and other optical parameters of today’s high-end IR optics in R&D and production.
- Available for NUV/VIS/NIR/MWIR/LWIR spectrum (SWIR on request)
- Includes a high-quality mirror collimator, broadband IR light source and IR focal plane array image sensor
- Accuracy traceable to international standards
Technical Data
| Parameter | ImageMaster® HR VIS | ImageMaster® HR IR | ImageMaster® HR MAX | ImageMaster® HR MAX IR | ImageMaster® HR UltraPrecision HR MAX |
|---|---|---|---|---|---|
| Optical set up | Infinite conjugates (finite optional) |
Infinite conjugates | Infinite conjugates (finite optional) |
Infinite conjugates | |
| Max. off-axis angle | Up to ±110° | Up to ±110° | Up to ±70° | Up to ±70° | |
| Spectral range | 450 nm … 750 nm, halogen (NIR/NUV optional) | LWIR: 8 µm … 12 µm | VIS /NIR NUV optional |
NIR, NUV, LWIR: 8 µm … 12 µm VIS: 0.4 µm … 0.9 µm MWIR : 3 µm … 5 µm SWIR: 0.9 µm … 1.7 µm on request |
|
| Azimuth range | 360° | 360° | 360° | 360° | |
| Max. image height | ±23 mm | ±23 mm | ±23 mm | ±23 mm | ±23 mm |
| Clear aperture | up to 100 mm | up to 100 mm | up to 100 mm | ||
| Collimator range | 50 mm … 500 mm | 50 mm2) | 50 mm … 1,000 mm | 50 mm … 1,000mm2) | 50 mm … 1,000 mm |
| EFL range of the sample | 1 mm … 150 mm 1) | 1 mm … 10 mm1),2) | 1 mm … 200 mm 1) | 1 mm … 200 mm 1) | 1 mm … 200 mm 1) |
| Spatial frequency (in specification) Max. spatial frequency |
0 lp/mm … 500 lp/mm 1,000 lp/mm (depending on sample) |
0 lp/mm … 60 lp/mm | 0 lp/mm … 500 lp/mm 1,000 lp/mm (depending on sample) |
VIS/NIR/LWIR: 0 lp/mm … 60 lp/mm MWIR: 0 lp/mm … 100 lp/mm |
0 lp/mm … 500 lp/mm 1,000 lp/mm (depending on sample) |
| Accuracy (MTF on-axis and off-axis) |
±0.02 MTF | ±0.03 MTF | ±0.02 MTF | ±0.03 MTF | ±0.02 MTF |
| Repeatability (MTF on-axis and off-axis) |
±0.005 MTF | ±0.02 MTF | ±0.005 MTF | ±0.02 MTF | ±0.005 MTF |
- Depends on mirror collimator
- Larger on request
ImageMaster® R&D Universal
| Parameter | ImageMaster® Universal |
|---|---|
| Optical set up | Finite, infinite or afocal |
| Max. off-axis angle | ±180 |
| Spectral range | UV: 250 nm … 450 nm VIS: 450 nm … 700 nm NIR: 700 nm … 1.000 nm SWIR: 1.000 nm … 2500 nm MWIR: 3 µm … 5 µm LWIR: 7 µm … 13 µm |
| Azimuth range | 360° |
| Max. image height | ±50 mm |
| Spatial frequency (in specification) Max. spatial frequency |
UV: 100 lp/mm VIS / NIR: 500 lp/mm SWIR: 120 lp/mm MWIR: 80 lp/mm LWIR: 60 lp/mm |
| Accuracy (MTF on-axis and off-axis) |
±0.02 MTF on axis ±0.03 MTF off axis |
| Repeatability (MTF on-axis and off-axis) |
±0.01 MTF |
| EFL (Effective Focal Length) Accuracy |
±0.2 % |
| Distortion Accuracy (without / with encoder) Repeatability (without / with encoder) |
±0.7 % / ±0.25 % ±0.3 % / ±0.1 % |
| Lateral chromatic aberration Accuracy Repeatability |
±0.5 µm ±0.3 µm |
| Longitudinal chromatic aberration Accuracy Repeatability |
±1 µm 0.2 µm |
| CRA Accuracy Repeatability |
±1° ±0.4° |
| FFL (relative) Accuracy Repeatability |
±2 µm ±1 µm |
| Astigmatism Accuracy Repeatability |
±4 µm ±1 µm |
| Field curvature Accuracy Repeatability |
±2 µm ±1 µm |
