<title>Applying Hartmann wavefront-sensing technology to precision optical testing of the Hubble Space Telescope correctors</title>

Ocular Anterior Segment Biometry and High-Order Wavefront Aberrations During Accommodation

“…41,42 These factors also may result in unstable measurement of HOAs. The Hartmann-Shack wavefront sensor is a highly accurate apparatus for measuring ocular wavefront aberrations, 43 and is used to evaluate optical quality. 44 The increase in HORMS caused by accommodation was consistent with findings of the previous studies ( Table 5).…”

Fabrication, characterization, and applications of microlenses

“…Furthermore, a spatial light modulator array in front of the microlenses of a Shack-Hartmann sensor can be used as an on/off switch for the subapertures of the sensor. Using this method, assignment of individual spots to their subapertures can be achieved even though the spots are separated from their respective subapertures [94,95].…”

Adaptive Shack-Hartmann wavefront sensor accommodating large wavefront variations

“…One approach to improving the dynamic range of a traditional SHWFS is to track the movement of Hartmann spots along an optical axis by measurements at additional planes between the lenslet array and the detection plane and use a predictive algorithm to match the spots to their correct measurement locations [5]. The method in [5] also makes uses of a movable relay lens and camera assembly to switch between Hartmann spot imaging and pupil imaging so that the mapping of the lenslets onto the pupil and hence an optimal size and distribution for the detector subarray can be established. Another novel approach uses an algorithm that unwraps spot dislocations and assigns spots to their correct subapertures, thereby eliminating discontinuities in the patterns of the local positions, which are wrapped modulo P, where P is the lenslet pitch [6].…”