Patent ID: 9612428
Date: 2017-04-04
CPC Classifications: G02B

Claim:
1. An apparatus for confocal observation of a specimen, comprising: an illumination device that generates illumination radiation comprising a first and a second illumination wavelength, a mask device which is illuminated by said illumination radiation in at least one mask region, to spatially modulate the illumination radiation with at least one mask pattern, an objective that images said at least one mask pattern onto a specimen region of the specimen, and for imaging onto the at least one mask region an emission radiation comprising a first and a second emission wavelength, which is emitted by the specimen in response to the two different wavelengths of the illumination radiation, a detection device that receives the emission radiation after the emission radiation has passed the mask device, a scanner that scans the image of the mask region across the specimen region, wherein a first beam splitter is positioned between the mask device and the objective, wherein the first beam splitter deflects the first illumination wavelength and the corresponding first emission wavelength at a first deflection angle and allows the second illumination wavelength and the corresponding second emission wavelength to pass through or to be deflected at a second deflection angle such that two different mask patterns generated by different wavelengths are imaged into the specimen region by the first and the second illumination wavelengths respectively.