| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a spectral optical system and a spectrometric device capable of accurately measuring a wavelength distribution and suppressing a loss of light transmitted in a transmission path.SOLUTION: A spectral optical system 10 includes a filter part, a projection optical system and a light-receiving part. In the filter part, an incident surface receives parallel beams, and a part of the beams exit from an exit surface as transmitted beams having wavelengths continuously varying in a predetermined direction. The projection optical system is disposed on the incident surface side of the filter part, and the optical system converts beams having a plurality of wavelengths incident to the system from a first transmission path P1 into parallel beams to enter the incident surface, and condenses the other part of the parallel beams reflected on the incident surface to a second transmission path P2. The light-receiving part includes a plurality of light-receiving elements which receive the transmitted beams at the respectively assigned wavelengths.</p> |
