Patent ID: 7660036
Filing Date: 2010-02-09
Classification: G01N

Abstract:
1. A particle analysis system comprising: an optical imaging device imaging a particle accumulation onto a substantially planar substrate; an illuminating device illuminating at least part of the particle accumulation; a polarization device including an optical polarizer and an optical analyzer; a positioning device displacing an illuminated measurement area of the particle accumulation grid by grid; and an evaluating device obtaining and evaluating imaging data generated by the imaging device on each measurement area; wherein the polarization device includes an electrical adjusting device, the optical polarizer and the optical analyzer being adjustable using the electrical adjusting device relative to each other in a first polarizer position and in a second polarizer position; and wherein the imaging device generates imaging data of the particle accumulation with the first polarizer position and with the second polarizer position in a software-controlled manner on each measurement area; wherein the optical imaging device comprises a reflecting light stereomicroscope; and wherein the illuminating device comprises a ring light on a lens barrel of the stereomicroscope; and wherein the optical polarizer is supported in an illumination beam of the ring light.