OCT-based ophthalmological measuring system
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United States of America Patent
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Sep 30, 2014
Grant Date -
May 16, 2013
app pub date -
Jul 2, 2011
filing date -
Jul 24, 2010
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Abstract
An ophthalmological measuring system for determining distances and/or for tomographic imaging of ocular structures, based on an OCT method. The measuring system includes a light source with a spectral centroid (λ), an interferometric measuring device, a scanner system, which in addition to the lateral deflection of the sample beam also has axial modulations with a frequency (f) in the sample arm, and a control and evaluation unit. The scanner performs a lateral, two-dimensional deflection of the sample beam with the aid of one or even two separate mirror elements and can in particular have axial modulation amplitudes zM>>λ/2. The system can also be used for scanner systems in other fields that use an OCT method, in particular a swept-source OCT method.
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