SPECTROSCOPE AND MICROSPECTROSCOPIC SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a spectroscope and a microspectroscopic system capable of performing spectroscopy having sufficient S/N with minimum necessary light receiving elements without performing wavelength division more than necessary.SOLUTION: A spectroscope 40 used for a microspectroscopic system 1 includes: a collimating optical system 41; a diffraction grating 42 for dispersing signal light; a condensing optical system 43; a projection optical system 44 including a spatial light modulation element 46 in which multiple microlenses 46a are arranged one dimensionally in a spectral direction and each of the multiple microlenses 46a is movable in a first direction at least different from the spectral direction, in a plane substantially orthogonal to an optical axis of the microlens 46a, and including a cylindrical lens 47; and a light receiver 45 in which multiple light receiving elements 45a are arranged in a second direction in a plane substantially orthogonal to an optical axis of the projection optical system 44.