Shack-Hartmann wavefront sensor optical dynamic range
نویسندگان
چکیده
منابع مشابه
Measurement Error of Shack-Hartmann Wavefront Sensor
A Shack-Hartmann sensor is one of the most important and popular wavefront sensors used in an adaptive optics system to measure the aberrations caused by either atmospheric turbulence, laser transmission, or the living eye [1-7]. Its design was based on an aperture array that was developed in 1900 by Johannes Franz Hartmann as a means to trace individual rays of light through the optical system...
متن کاملShack-Hartmann wavefront sensor precision and accuracy
The design of a wavefront sensor may be determined by the lenslet array and camera selection. There are numerous different applications for these sensors, requiring widely differing dynamic range and accuracy. Performance metrics are needed to evaluate candidate designs and to compare results. We have developed a standard methodology for measuring the repeatability, accuracy and dynamic range o...
متن کاملLarge-dynamic-range Shack-Hartmann wavefront sensor for highly aberrated eyes.
A conventional Shack-Hartmann wavefront sensor has a limitation that increasing the dynamic range usually requires sacrificing measurement sensitivity. The prototype large-dynamic-range Shack-Hartmann wavefront sensor presented resolves this problem by using a translatable plate with subapertures placed in conjugate with the lenslet array. Each subaperture is the same size as a lenslet and they...
متن کاملJBO LETTERS Large-dynamic-range Shack-Hartmann wavefront sensor for highly aberrated eyes
A conventional Shack-Hartmann wavefront sensor has a limitation that increasing the dynamic range usually requires sacrificing measurement sensitivity. The prototype large-dynamic-range Shack-Hartmann wavefront sensor presented resolves this problem by using a translatable plate with subapertures placed in conjugate with the lenslet array. Each subaperture is the same size as a lenslet and they...
متن کاملShack-Hartmann wavefront sensor with large dynamic range by adaptive spot search method.
A Shack-Hartmann wavefront sensor (SHWFS) that consists of a microlens array and an image sensor has been used to measure the wavefront aberrations of human eyes. However, a conventional SHWFS has finite dynamic range depending on the diameter of the each microlens. The dynamic range cannot be easily expanded without a decrease of the spatial resolution. In this study, an adaptive spot search m...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2021
ISSN: 1094-4087
DOI: 10.1364/oe.419311