Patent ID: 6686582
Filing Date: 2004-02-03
Classification: B01L,G01N

Abstract:
A reader for microtiterplates or substance chips having a plurality of individual sample volumes arranged in a grid pattern dimension, comprising:a lens array having a grid pattern dimension that corresponds to said grid pattern dimension of said individual sample volumes of a microtiterplate or substance chip, a detector array, a reflected light illumination device providing illumination light, a telescope between said lens array and said detector array that effects a reduction to match a beam diameter defined by said lens array to the dimensions of said detector array, and a field lens, wherein a reduced image of said microtiterplate or substance chip is formed on said detector array by a system of said lens array, said telescope, and said field lens, so that on said detector array a strict channel separation results between measurement signals arising from said individual sample volumes of said microtiterplate or substance chip, wherein said lens array is achromatized in that each individual lens of said lens array comprises a lens group with achromatic properties, and wherein said illumination light is conducted through said lens array precisely to locations on said microtiterplate or substance chip which are imaged on said detector array.