SMITH, DAVID STEVEN,HATTERSLEY, SIMON RICHARD,GILKES, ANDREW
申请号:
CA2588697
公开号:
CA2588697C
申请日:
2005.11.04
申请国别(地区):
CA
年份:
2013
代理人:
摘要:
An optical interference apparatus for carrying out Fourier domain opticalcoherence tomography including means to provide multiple beams wherebyinterferograms are recorded simultaneously for a plurality of different focaldepths within a substance to be examined, each interferogram being provided byone of the multiple beams. Means is provided for combining images derived fromsaid interferograms for a plurality of different focal depths, whereby asingle image may be constructed with an increased depth of field. The axialspacing of the foci is calculated to take into account the Rayleigh range ofthe focal waist in the substance to be examined.