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Fast Shack-Hartmann Wavefront Sensor
JOAO Wavefront Sensing
OVERVIEW
Measuring or even controlling quickly varying optical abberations with a high spatial resolution is currently connected with high cost for processing hardware and sensor equipment.
JOÃO is a Shack-Hartmann wavefront sensor that breaks these limits. Connected to an off-the-shelf Personal Computer, JOÃO keeps track of hundreds of focal spots at very high acquisition rates.
SPECIFICATION
- Wavelength Range: 400 - 950 nm
- # Pixels (Width): 820
- # Pixels (Height): 740
- Lenslet Pitch: 300 um
- Wavefront Accuracy: <= lambda/10
- Acquisition Rate: 4 kHz
Applications
JOÃO is made for fascinating applications in
· laser material processing (dynamic focussing)
· astronomy,
· ophthalmology and medicine,
· and adaptive optics.
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