Patent ID: 7491923

Claim:
A solid state imaging device comprising: a semiconductor substrate on which light receiving elements and vertical transfer paths to transfer electric charges accumulated in said light receiving elements are formed; a light shielding layer covering said vertical transfer paths for protection from light and having openings formed at positions corresponding to said light receiving elements; a planarizing layer for covering said light shielding layer and said light receiving elements; microlenses disposed above said planarizing layer and for focusing light toward said light receiving elements; and a converging structure provided inside each of said openings, said converging structure having a higher refractive index than said planarizing layer, wherein said converging structure is made to satisfy an equation expressed as follows: D =(λ/ n 2 ){¼+ N/ 2} wherein D is a thickness of a portion located in a central region of said converging structure, λ is a wavelength of light entering said converging structure, and N is an integer.