| 摘要 |
PROBLEM TO BE SOLVED: To improve image quality by improving sensitivity and preventing the generation of a smear or a color mixture.SOLUTION: An optical waveguide core 130 is formed so that a portion having a diffractive index higher than that of a clad 140 and corresponding to the center of a light receiving surface JS may have a refractive index distribution lower than that of a portion corresponding to the periphery of the light receiving surface JS. Together with this, the optical waveguide core 130 is formed so that a phase difference generated in the optical waveguide core 130 may be smaller than a phase difference generated in an on-chip lens ML. |
