Biochip reader

摘要

The present invention provides a biochip reader that is superior in S/N ratios and allows the cost to be reduced. The biochip reader comprises a light source, a lens for collimating light emitted by the light source, an optical detector for detecting fluorescent light produced by the excitation light at samples, and an objective lens for condensing fluorescent light produced at a biochip where samples are deposited, wherein the excitation light is projected onto the substrate of the biochip at the critical angle or greater.