An opto-electronic device utilizes a band of polychromatic light for quantitative analysis of a target molecule within a mixed specimen. A movable polarizer produces a segmented band of partially polarized polychromatic light from the band of partially polarized polychromatic light. A specimen cell adapted...http://www.google.de/patents/US5871442?utm_source=gb-gplus-sharePatent US5871442 - Photonic molecular probe