公开(公告)号：EP3011288A4

公开(公告)日：2017-02-22

申请号：EP14813615

申请日：2014-06-20

申请人： CYLITE PTY LTD

发明人： FRISKEN STEVEN JAMES ,  FRISKEN GRANT ANDREW

IPC分类号： G01B9/02 ,  A61B3/00 ,  A61B3/10 ,  A61B3/107 ,  A61B3/117 ,  A61B3/14 ,  G01J9/02 ,  G02B27/10 ,  G02B27/28 ,  G02C7/02

CPC分类号： A61B3/1015 ,  A61B3/0025 ,  A61B3/1025 ,  A61B3/107 ,  A61B3/117 ,  A61B3/14 ,  G01B9/02027 ,  G01B9/02039 ,  G01B9/02041 ,  G01B9/02044 ,  G01B9/02091 ,  G01B2290/70 ,  G01J9/02 ,  G01J2009/0219 ,  G01J2009/0238 ,  G02B27/1013 ,  G02B27/283 ,  G02C7/027 ,  G02C2202/24

摘要： Method and systems are presented for analyzing a wavefront using a spectral wavefront analyzer to extract optical phase and spectral information at a two dimensional array of sampling points across the wavefront, wherein the relative phase information between the sampling points is maintained. Methods and systems are also presented for measuring an eye by reflecting a wavefront of an eye and measuring the wavefront at a plurality of angles to provide a map of the off-axis relative wavefront curvature and aberration of the eye. The phase accuracy between wavelengths and sample points over a beam aperture offered by these methods and systems have a number of ocular applications including corneal and anterior eye tomography, high resolution retinal imaging, and wavefront analysis as a function of probe beam incident angle for determining myopia progression and for designing and testing lenses for correcting myopia.

公开(公告)号：EP3303985A4

公开(公告)日：2018-06-27

申请号：EP16798965

申请日：2016-05-27

申请人： CYLITE PTY LTD

发明人： FRISKEN STEVEN JAMES ,  ANDERSON TREVOR BRUCE ,  SEGREF ARMIN GEORG ,  FRISKEN GRANT ANDREW

IPC分类号： G01B9/02 ,  A61B3/00 ,  G01B9/00 ,  G01N21/00 ,  G02B27/00 ,  G02B27/10 ,  G06T7/33

CPC分类号： A61B3/0025 ,  A61B3/102 ,  A61B3/1225 ,  A61B3/14 ,  G02B27/1013 ,  G06T11/008 ,  G06T15/08

摘要： Methods and apparatus are presented for obtaining high-resolution 3-D images of a sample over a range of wavelengths, optionally with polarisation-sensitive detection. In preferred embodiments a spectral domain OCT apparatus is used to sample the complex field of light reflected or scattered from a sample, providing full range imaging. In certain embodiments structured illumination is utilised to provide enhanced lateral resolution. In certain embodiments the resolution or depth of field of images is enhanced by digital refocusing or digital correction of aberrations in the sample. Individual sample volumes are imaged using single shot techniques, and larger volumes can be imaged by stitching together images of adjacent volumes. In preferred embodiments a 2-D lenslet array is used to sample the reflected or scattered light in the Fourier plane or the image plane, with the lenslet array suitably angled with respect to the dispersive axis of a wavelength dispersive element such that the resulting beamlets are dispersed onto unique sets of pixels of a 2-D sensor array.