Spectroscope and microscope equipped with the same

摘要

In order to provide a spectroscope capable of improving spectral resolution in a wide wavelength range while suppressing reduction in light receiving efficiency and generation of stray light, the first surface 31 on which light emitted from a light source is incident, and A refractive lens 3 having a convex curved second surface 32 from which light incident from the first surface 31 is emitted, and light incident from the second surface 32 of the refractive lens 3 is reflected. A concave curved reflection type diffraction grating 4 that diffracts with the light, and light reflected by the reflection type diffraction grating 4 and incident from the second surface 32 of the refractive lens 3 and emitted from the first surface 31. A detector 6 provided at a position where an image is formed, a compensation element 5 provided between the first surface 31 of the refractive lens 3 and the detector 6 are provided.