OPTICAL ILLUMINATION APPARATUS AND METHOD Russian patent published in 2014 - IPC G02B27/09 

FIELD: physics.

SUBSTANCE: apparatus for detecting luminescence in a sample includes an optical system for illuminating a sample with a linear beam, having a light source (24), having an asymmetric intensity distribution, a beam shaper (30) which transforms the light beam from the light source into an intermediate astigmatic image, and an image forming system (L1, 26) for transforming the intermediate astigmatic image into a final astigmatic image. The beam shaper is arranged such that the beam at the output of the optical system is focused into a linear beam. The beam shaper (30) provides non-identical magnification in the lateral plane and in the transversal plane and comprises a toroidal input surface and a toroidal output surface, each having a finite radius of curvature and capable of making intensity distribution in the cone of light emitted by the light source more symmetrical.

EFFECT: reduced dimensions, high reliability of the device and simple design.

12 cl, 7 dwg