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| Number | Title | Issue Date |
| 6690466 | Spectral imaging system An imaging system is disclosed comprising an illuminator which produces illumination of any desired pure wavelength or of any selected mixture of pure wavelengths simultaneously, which illuminates a sample without spatio-spectral artifacts using illuminat... | 02/10/2004 |
| 6674527 | Ratiometric background correction for fluorescence polarization assays A method in which a multiplicative ratio approach is used to remove the effects of the unwanted background fluorescence when making fluoroescence polarization (FP) measurements rather than the conventional subtractive approach, thus preserving both the pr... | 01/06/2004 |
| 6665072 | Instantaneous dual band fluorescence detection systems An apparatus for performing fluorescence detection of two or more biochemical probes and/or fluorescence measurement of fluorescence intensity at two or more spectral bands of light emitted from at least one sample spot is disclosed. The apparatus simulta... | 12/16/2003 |
| 6566143 | Multiple label fluorescence polarization assay system and method A sample having a plurality of probe molecules is illuminated with at least one beam of excitation light that is linearly polarized along a first axis, thereby effecting fluorescence emission in a plurality of spectral bands. The intensity of a first comp... | 05/20/2003 |
| 6552836 | High performance polarization controller and polarization sensor The invention is an instrument for sensing the state of polarization (SOP), and for transforming the SOP of a beam of light from an incident continuously-varying arbitrary SOP to a desired exit SOP, using a polarization compensator under feedback control.... | 04/22/2003 |
| 6535257 | Liquid crystal cell for use in coherent beams A liquid crystal cell assembly is described which eliminates high-order multiple-beam interference from reflections at the interfaces between the various elements. It can incorporate fixed retarders for compensation or production of high retardances. The ... | 03/18/2003 |
| 6501548 | Retardance measurement method A method for measuring sample retardance in the presence of spurious background retardance contributed by optical components such as strained lenses in the measurement system, which is accurate where there is a retardance in excess of 15 degrees in the sa... | 12/31/2002 |
