Standard and high-resolution Fizeau interferometers
The Fizeau interferometers of Äpre Instruments are suitable for flexible optical quality assessment of surfaces and optics.
The advantage is that you can switch between a large coherence length for lasers and a small coherence length for SCI (Spectrally Controlled Interferometry) applications within one minute.
The following models for standard resolution and high resolution are available:
| S-Series |SR Standard resolution universal interferometers | |||
|---|---|---|---|
| Model | S50 | SR | S100 | SR | S150 | SR |
| Aperture | 51 mm | 102 mm | 153 mm |
| Data acquisition modes | Laser: Vibration Tolerant PSI (Standard) Laser: Vibration Insensitive using Spatial-Carrier Fringe Acquisition Laser: Wavelength Modulated PSI (Option) Low Coherence: Spectrally Controlled Interferometry (Option) |
||
| Camera resolution | 1022 x 1022 | 1022 x 1022 | 1022 x 1022 |
| Image resolution | 100 µm | 200 µm | 300 µm |
| Fringe resolution | 300 fringes/aperture | ||
| Retrace error | λ/15 optional: λ/20 | λ/15 optional: λ/20 | λ/15 optional: λ/20 |
| S-Series |HR High-resolution, high-performance interferometers | ||||
|---|---|---|---|---|
| Model | S50 | HR | S100 | HR | S150 | HR | S300 | HR |
| Aperture | 51 mm | 102 mm | 153 mm | 304 mm |
| Data acquisition modes | Laser: Vibration Tolerant PSI (Standard) Laser: Vibration Insensitive using Spatial-Carrier Fringe Acquisition Laser: Wavelength Modulated PSI (Option) Low Coherence: Spectrally Controlled Interferometry (Option) |
|||
| Camera resolution | 2044 x 2044 | 2044 x 2044 | 2044 x 2044 | 2044 x 2044 |
| Image resolution | 50 µm | 100 µm | 150 µm | 300 µm |
| Fringe resolution | >600 fringes/aperture | >600 fringes/aperture | >600 fringes/aperture | >500 fringes/aperture |
| Retrace error | λ/15 optional: λ/20 | λ/15 optional: λ/20 | λ/15 optional: λ/20 | λ/15 optional: λ/20 |
| S-Series |HRx Very high-resolution interferometers | |||
|---|---|---|---|
| Model | S50 | HRx | S100 | HRx | S150 | HRx |
| Aperture | 51 mm | 102 mm | 153 mm |
| Data acquisition modes | Laser: Vibration Tolerant PSI (Standard) Laser: Vibration Insensitive using Spatial-Carrier Fringe Acquisition Laser: Wavelength Modulated PSI (Option) Low Coherence: Spectrally Controlled Interferometry (Option) |
||
| Camera resolution | 3000 x 3000 | 3000 x 3000 | 3000 x 3000 |
| Image resolution | 35 µm | 70 µm | 105 µm |
| Fringe resolution | >600 fringes/aperture | >600 fringes/aperture | >600 fringes/aperture |
| Retrace error | λ/15 optional: λ/20 | λ/15 optional: λ/20 | λ/15 optional: λ/20 |
The screen resolution indicates how small a property can be measured. S-Series HR and SR interferometers feature diffraction-limited imaging that goes beyond simple camera pixels to improve overall system performance.
With the interferometers comes the acquisition and analysis software REVEAL, with the help of which all measurement data can be evaluated very easily and professionally.
For more information please visit the website of Äpre instruments.