Large dynamic range autorefraction with a low-cost diffuser wavefront sensor
نویسندگان
چکیده
منابع مشابه
Shack-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...
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...
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There are many applications that can benefit from the ability to acquire 3D data from environmental surroundings. Examples include navigation, mapping, localisation and robot mobility. However, in the past, the technology for acquiring dense, wide ranging, accurate 3D data was too expensive, heavy and/or power hungry for many projects that could benefit from its use. In this paper, we describe ...
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87 High Speed Optical Wavefront Sensing with Low Cost FPGAs K. Kepa 2 , D. Coburn, J. C. Dainty, F. Morgan Applied Optics Group, School of Physics, Dept. of Electronic Engineering, 1, National University of Ireland, Galway, University Rd., Galway, Ireland Institute of Computer Engineering Control and Robotics, Wroclaw University of Technology, Poland [email protected], {derek.coburn, c...
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ژورنال
عنوان ژورنال: Biomedical Optics Express
سال: 2019
ISSN: 2156-7085,2156-7085
DOI: 10.1364/boe.10.001718