A CCD-based biochip reader includes a light source for emitting light
beams, a collimating lens for converting the light beams into wide
parallel rays of light, passing said wide parallel rays of light through
a biochip and exciting fluorescence from fluorescent targets on the
biochip, a focusing lens for focusing the fluorescence, a filter for
filtering out said parallel rays of light, and a charge-coupled device
camera for generating images from said fluorescence. For recording
intensity of the fluorescence from the fluorescent targets, images of the
charge-coupled device camera is converted into digital data through an
image converting device. Wide parallel laser beams are produced by the
laser and through the collimating lens, and excite all samples on the
biochip with high efficiency at the same time. In addition, time for
analysis is saved when fluorescent images of a large area on biochips are
collected and analyzed through the charge-coupled device camera.