Martin Hacker,Thomas Pabst,Ralf Ebersbach,Gerard Antkowiak
申请号:
US13812113
公开号:
US08845097B2
申请日:
2011.07.02
申请国别(地区):
US
年份:
2014
代理人:
摘要:
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.