PMTF
Designed to offer lens manufacturers real-time, high quality measurements of the optical power and modulation transfer function (MTF), the PMTF measures and characterizes every type of intraocular lenses (refractive & diffractive).
Key charasteristics
- Automated measurement sequence
- Improved scanning speed
- Integrated USAF & Siemens targets
- Fitted with ISO model eye
- ISO11979 compliant
- Physical model eye
- Exchangeable model eye
- Zemax compatibility verified
Hardware specifications
| Measurement principle | ISO11979-2 compliant power and MTF measurement |
| MTF orientation | Tangential and sagittal |
| Model Eye | ISO 11979-2 Model 1 (aberration free) or Model 2 (with spherical aberration) Custom Model Eye available on request. |
| Wavelength | 546 nm |
| Aperture diameter | 2, 2, 3.75 and 4.5 mm (standard), other on request. |
| Speed of measurement | Real-time (10 Hz) MTF, through focus MTF 30 sec per 100 points |
| Operation | Automatic MTF, Through focus and Power measurement, incl. automatic detection of focus. *Optional automatic IOL centering (not for toric). |
| IOL power range | -10 D to 40 D |
| Lens holder | X-Y translation table for standard cuvette, tilt free IOL holder. *Optional motorized table for automatic IOL centering |
| Repeatability variance | 0,01 D (ISO5725) |
| External dimensions | 170 x 220 x 590 mm³ (23 x 9 x 7 in³) |
Software specifications
| Single focus | MTF and power |
| Through focus | Through focus MTF at 100, 50, 25 or 10 cy/mm |
| Multifocal (*toric, plug-in) | MTF, power (*and cylinder) and at each focus (up to 3) |
| ISO through focus & ISO MTF | Automatic, ISO compliant |
| Operating mode | Single measurement (R&D), Production Batch |
| Interfacing | Bar code, TCP/IP—LabView compatible (optional) |
| Data output, production batch (PB) | Text file, one line per measurement, batch report, statistics |
| Data output, single measurement (SM) | Save curves as image (BMP) or text file (CSV) |