Patent ID: 8559005

Claim:
A spectral characteristic measuring device, comprising: an illuminating unit configured to illuminate a medium; a light dividing unit configured to divide reflection light from the medium into plural reflection light beams; a first imaging unit configured to focus the respective reflection light beams; a diffraction unit configured to diffract the focused reflection light beams to form diffraction images; and a light receiving unit including plural pixels configured to receive the diffraction images, wherein the first imaging unit includes first lenses and second lenses that are arranged alternately in a staggered pattern; wherein the diffraction unit includes a first diffraction region and a second diffraction region; and wherein the spectral characteristic measuring device is configured such that the reflection light beams focused by the first lenses enter the first diffraction region to form first diffraction images of the diffraction images, the reflection light beams focused by the second lenses enter the second diffraction region to form second diffraction images of the diffraction images, and the first diffraction images and the second diffraction images are arranged alternately on the light receiving unit in a pixel arrangement direction in which the pixels are arranged.