A wavefront sensor is a device for measuring
the aberrations of an optical wavefront.
Although an amplitude splitting interferometer
such as the Michelson interferometer could
be called a wavefront sensor, the term is
normally applied to instruments that do not
require an unaberrated reference beam to interfere
with.
They are commonly used in adaptive optics
systems, lens testing and increasingly in
ophthalmology.
There are several types of wavefront sensors,
including:
Shack–Hartmann wavefront sensor
Phase-shifting Schlieren technique
Wavefront curvature sensor
Pyramid wavefront sensor
Common-path interferometer
Foucault knife-edge test
Multilateral shearing interferometer
Ronchi tester
Shearing interferometer
== See also ==
Adaptive optics
Deformable mirror
Wavefront
== External links ==
AO Tutorial: Wave-front Sensors
Wavefront sensing: Establishments Research
groups and companies with interests in wavefront
sensing and adaptive optics.
