White light interferometry in amblyopic children—A pilot study
نویسندگان
چکیده
منابع مشابه
Basics of White-Light Interferometry
Interferometer Setup The Twyman–Green interferometer (Figure 1) is a special configuration of the well-known Michelson interferometer with optics that superimpose the images of the object and the reference planes. Polytec engineers use this interferometer and place a CCD image sensor like those used for digital photography at the point where the two images are superimposed. A broadband “white-l...
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While high-sensitivity moiré interferometry requires monochromatic light, an auxiliary compensator grating removes the requirement. Experimental verification utilized white light for moiré interference of sensitivity 0.833 microm/fringe. Configurations readily amenable to compensation include moiré fringe multiplication by even factors and the minimum-deviation arrangement. Chromatic compensati...
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White-light interferograms provide a simple, accurate, and physically intuitive picture of what happens to broadband optical pulses on transmission through, or reflection from, common optical materials. Quantitative measurement of group delay are made with an accuracy of 60.1 fs and with high spectral resolution. This measurement accuracy is applied to the determination of d2nydl2 and d3nydl3 o...
متن کاملBayesian Estimation for White Light Interferometry
In this thesis, a new approach for the reconstruction of height maps from scanning white light interferometry is presented. This method unifies the conventional steps of preand postprocessing within Bayesian inference. An adept formulation of the prior allows for the exact computation of the height estimate, obviating the need for stochastic sampling or simulation methods. In conventional surfa...
متن کاملFringe modulation skewing effect in white-light vertical scanning interferometry.
An interference fringe modulation skewing effect in white-light vertical scanning interferometry that can produce a batwings artifact in a step height measurement is described. The skewing occurs at a position on or close to the edge of a step in the sample under measurement when the step height is less than the coherence length of the light source used. A diffraction model is used to explain t...
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ژورنال
عنوان ژورنال: Eye
سال: 1990
ISSN: 0950-222X,1476-5454
DOI: 10.1038/eye.1990.126