Patent ID: 8872086

Claim:
A photoelectric conversion device comprising: a plurality of photoelectric conversion elements each having a photo-sensing surface; a wiring layer arranged above the plurality of photoelectric conversion elements; an insulation film arranged above the wiring layer; a plurality of light-guiding portions arranged above the insulation film, each of the plurality of light-guiding portions guiding light onto a respective photo-sensing surface of a photoelectric conversion element of the plurality of photoelectric conversion elements; a boundary portion defining a boundary between adjacent light-guiding portions and being formed of a material lower in refractive index than a material that forms the plurality of light-guiding portions; and a plurality of lenses interposed between the insulation film and the plurality of light-guiding portions, a part of each of the plurality of lenses being in contact with the boundary portion, wherein a width of the boundary portion is not more than half a shortest wavelength in a wavelength range of visible light, and wherein a height from a lower surface to an upper surface of each of the plurality of light-guiding portions is not less than double a longest wavelength in the wavelength range of visible light.