BigPatents India

This invention relates to a method and apparatus for digitizing light measurements by computer control light source emission. The invention uses Light Sensitive Device (LSD), such as for example a camera system containing a CMOS-or a CCD-image chip, to perform precise measurements by digitally controlling the light source output. A constant output value is obtained from the LSD such that any non-linearity and range limitation of the LSD output is circumvented. The measurement methods and system are applied to chemical test and analytes, which are used for diagnostic purposes. The method can be used to measure reflectance, transmittance, fluorescence and turbidity. (FIG. 1)