MULTIFOCAL SPECTROSCOPIC MEASUREMENT DEVICE, AND OPTICAL SYSTEM FOR MULTIFOCAL SPECTROSCOPIC MEASUREMENT DEVICE

摘要

Provided is a multifocal spectroscopic measurement device with which it is possible to simultaneously measure a plurality of samples at high sensitivity, with no limitation as to the magnification factor. This multifocal spectroscopic measurement device 10 disperses light by introducing into a spectrograph signal light that is emitted from a plurality of prescribed observation areas in a sample S arranged in a sample arrangement part (sample holder 13), the device comprising a plurality of objective lenses (objective focusing parts) 111, a single one of which is provided at each of locations corresponding to optical systems of the plurality of observation areas, and spectrograph input units 151, a single one of which is provided in corresponding fashion to each of the plurality of objective lenses 111, the spectograph input units 151 inputting signal light that has passed through the corresponding objective lenses 111 to a spectrograph 17. Because each of the objective lenses 111 individually observes only a single observation area, the magnification factor can be increased and the numerical aperture NA enlarged. In so doing, the quantity of light collected by the objective lenses 111 in proportion to the quantity of light of all signal light emitted by the sample S in the observation areas is increased, and the measurement accuracy is higher.