A modular, micro-scale, optical array and biodetection device for
quantifying fluorescence intensities of a plurality of substantially
separated, and dimensionally uniform elements of a bioarray that are
located at known positions on a plain support includes a light guide that
directs bioarray illumination light from a respective light source to
opposing sides of the plain support. An optical module collecting light
individually from the bioarray elements includes an optical member, a
filter, and a sensor, such as a CCD chip. The optical member collects and
transfers emitted light from the bioarray elements via the filter to the
sensor. The filter transfers light from the elements having a predefined
wavelength spectrum and blocks light outside the predefined wavelength
spectrum. The sensor receives transferred light from the elements and
produces a signal corresponding to respective elements of the bioarray.