Laminated body, imaging element package, imaging apparatus, and electronic apparatus

A laminated body comprising:

• a substrate;
• and
• a structure layer which is provided on the substrate and has an anti-reflection function,
• wherein the structure layer includes
• a plurality of structure bodies, and
• an intermediate layer which is provided between the plurality of structure bodies and the substrate, and
• wherein the intermediate layer satisfies a following relational expression (2) in any section.
• (2π/λ)·n(λ)·|D−D0|<π (2)
• (where, λ represents a wavelength of light for a purpose of reduction of reflection, n(λ) represents a refractive index of the intermediate layer when the wavelength is λ, D0:
• a thickness of the intermediate layer at a center point of the section, and D represents a thickness of the intermediate layer at any point of the section)

An imaging element package comprising:

• an imaging element;
• and
• a package which includes a light transmitting unit and accommodates the imaging element,
• wherein the light transmitting unit includes
• a substrate, and
• a structure layer which is provided on the substrate and has an anti-reflection function,
• wherein the structure layer includes
• a plurality of structure bodies, and
• an intermediate layer which is provided between the plurality of structure bodies and the substrate, and
• wherein the intermediate layer satisfies a following relational expression (1).
• (2π/λ)·n(λ)·|d−d0|<π (1)
• (where, λ represents a wavelength of light for a purpose of reduction of reflection, n(λ) represents a refractive index of the intermediate layer when the wavelength is λ, d0 represents a thickness of the intermediate layer at a center point, and d represents a thickness of the intermediate layer at any point (a thickness of the intermediate layer at any point in a predetermined range centered on the center point))