Patent ID: 7330264

Claim:
An optical detection device for detecting at least one sample, the optical detection device comprising: a light source for generating excitation light to excite the sample; a detection plate having an optical waveguide with the sample mounted thereon; a linear symmetry lens for shaping the excitation light into a desired shape having a uniform intensity distribution and transmitting it to the detection plate; and a detector for detecting radiation from the sample; wherein: the detection plate is configured in an array shape; each of the detection plates has a first diffraction grating and a second diffraction grating; the excitation light shaped by the linear symmetry lens is arranged to include all first diffraction gratings laid in the same direction as line-shapes of the first diffraction grating among the detection plate arrays; and the light source scans in a direction perpendicular to the line-shape of the first diffraction grating to detect radiation from each of the samples mounted on the detection plate array.