PHOTOSENSITIVE DETECTION ELEMENT CAPABLE OF DETECTING SPECTRA IN DIFFERENT WAVELENGTHS AT THE SAME TIME

摘要

A photosensitive detecting device capable of simultaneously detecting spectra of different wavelengths comprises a first photosensitive chip (3) covered by a first spectral filtering layer (2), the first spectral filtering layer (2) allowing a light with a wavelength in a first range to pass through in response to a reception from the first photosensitive chip (3), and a second photosensitive chip (6) covered by a second spectral filtering layer (5), the second spectral filtering layer (5) allowing a light with a wavelength in a second range to pass through in response to a reception from the second photosensitive chip (6). The photosensitive detecting device has an advantage of simultaneously detecting various spectra of different wavelengths by one independent device.