Patent ID: 9599511
Date: 2017-03-21
CPC Classifications: G01J

Claim:
1. An imaging apparatus, comprising: a first coding element that includes regions arrayed two-dimensionally in an optical path of light incident from an object; and an image sensor disposed in an optical path of light that has passed through the first coding element, wherein the regions include a first region and a second region, wherein a wavelength distribution of an optical transmittance of the first region has a local maximum in each of a first wavelength band and a second wavelength band that differ from each other, wherein a wavelength distribution of an optical transmittance of the second region has a local maximum in each of a third wavelength band and a fourth wavelength band that differ from each other, wherein, when the wavelength distribution of the optical transmittance of the first region is normalized such that the optical transmittance of the first region has a maximum value of 1 and a minimum value of 0, the local maxima in the first wavelength band and the second wavelength band are both no less than 0.5, wherein, when the wavelength distribution of the optical transmittance of the second region is normalized such that the optical transmittance of the second region has a maximum value of 1 and a minimum value of 0, the local maxima in the third wavelength band and the fourth wavelength band are both no less than 0.5, wherein at least one selected from the group of the first wavelength band and the second wavelength band differs from the third wavelength band and the fourth wavelength band, and wherein, in operation, the image sensor acquires an image in which components of the first wavelength band, the second wavelength band, the third wavelength band, and the fourth wavelength band of the light that has passed through the first coding element are superimposed on one another.