ImageMaster® HR MAX IR - High End MTF Testing with Mirror Collimators in the IR Range
ImageMaster® HR MAX IR, based on the well proven ImageMaster® HR, has been developed to fulfill customer requirements for the highest accuracy and flexibility. It is designed for the measurement of MTF and other optical parameters of today’s high-end IR optics in R&D and production. The fully computer-controlled instrument comes with a high-quality mirror collimator, broadband IR light source and IR focal plane array image sensor.
Key Features:
- Accuracy traceable to international standards
- Fully or semi-automated, ultra-accurate, multi-functional MTF test station
- R&D MTF test station for medium sized samples
- MTF measurement at finite and infinite conjugates
- available spectral ranges: NUV/VIS/NIR/MWIR/LWIR (SWIR on request)
- Time-saving area sensor method for LWIR
- Vertical set up for most convenient and easy lens positioning
- Ultra-wide field angle of ± 70°
- Optimal design prevents vignetting
- High quality of all optics
Applications:
- MTF on-axis and off-axis (angle up to ± 70°)
- Effective Focal Length (EFL)
- Flange Focal Length (FFL) relative
- Distortion
- Field curvature
- Lateral and longitudinal chromatic aberrations
- Astigmatism
- Relative transmission
- Field of view
- Chief Ray Angle
- Depth of focus
MTF-Lab Software for ImageMaster® HR
TRIOPTICS has developed a new forward-looking software package.
Several useful functions are integrated which help the user to scan and perceive the correct image position of the sample under test. Changing the measurement mode is easy and time-saving. All important measurements for the imaging properties have been revised and are quickly accessible.
ImageMaster® R&D Line Software LAB provides powerful features to support the user in optimizing the measurement process.
MTF-Lab Screenshot
- Measurements of MTF, EFL and a range of other parameters using special target patterns and dedicated software routines
- Functions for easy alignment of the sample under test
- Conventional MTF measurement using a single slit or a crosshair as a target
- Optionally automated selection and positioning of the suitable reticle (target) and filter for the current application
- Configuration files with optimized process parameters and password protected access for operator and supervisor
- Script tools for custom programming and analysis
- Intuitive user interface and time-saving lens test routines
- The certificate in HTML format can be imported into MS Excel
| Parameter | ImageMaster® HR MAX | ImageMaster® HR MAX IR |
|---|---|---|
| Optical set up | Infinite conjugates (finite optional) | Infinite conjugates |
| Max. off-axis angle | Up to ± 70° | Up to ± 70° |
| Spectral range | VIS /NIR NUV optional | NIR, NUV, LWIR (8-12 µm), VIS (0.4-0.9 µm), MWIR (3-5 µm) / SWIR (0.9-1.7 µm) on request |
| Azimuth range | 360° | 360° |
| Max. image height | ± 23 mm | ± 23 mm |
| Clear aperture | up to 100 mm | up to 100 mm |
| Collimator range | 50-1000 mm | 50-1000 mm** |
| EFL range of the sample | 1-200 mm* | 10-200 mm* |
| Spatial frequency (in specification) Max. spatial frequency | 0 … 500 lp/mm 1000 lp/mm (depending on sample) | 0…60 lp/mm for VIS/NIR/LWIR, 0...100 lp/mm for MWIR |
| Accuracy (MTF on-axis and off-axis) | ± 0.02 MTF | ± 0.03 MTF |
| Repeatability (MTF on-axis and off-axis) | ±0.005 MTF | ± 0.02 MTF |
* Depends on collimator
** Larger on request
Upgrades & Accessories
TRIOPTICS is continuously improving the ImageMaster® HR and offers a wide range of possible options and upgrades.
Upgrades and accessories for VIS and IR range
- Motorized ultraprecise sample holder with a radial runout better than 3 μm / 6 arcsec for more accurate measurements of tilt sensitive samples
- Additional filters and reticles
- Extensions of nearly all stages to suit the customer’s Need
ImageMaster® HR Accessories
Upgrades and accessories for VIS range
- Motorized finite conjugate stage with manual or motorized object generator. The motorized object generator illuminates the reticle in the direction of the sample for off-axis measurements. This is needed for small samples or low light conditions
- Various collimators with focal length and clear aperture for high flexibility
- Motorized reticle and filter changer for infinite conjugate to measure with least interaction of an operator. The lateral chromatic aberration can be measured more accurately as the filter will be changed automatically with no vibration of a manual change
Veiling Glare Upgrade
- With the veiling glare upgrade for ImageMaster® HR it is possible to measure the Glare Spread Function (GSF). By off-axis measurements and rotation of the specimen around its center, the GSF can be measured over the entire field of view of the sample
