Optical element, optical element array, and solid-state image-pickup apparatus

摘要

A convex lens has surfaces including a flat surface and a projecting surface, and an anti-reflection structure configured to cover the projecting surface are included. The anti-reflection structure includes a first anti-reflection structure on the first end side, which is one of two end points of the line segment located nearer to the orthogonal projection of the apex than to the center point thereof, and a second anti-reflection structure on a second end side, which is one of the two end points of the line segment located nearer to the center point than to the orthogonal projection of the apex. A light transmittance of the second anti-reflection structure is greater than a light transmittance of the first anti-reflection structure.

主权项

1. An optical element comprising:
a bottom face; a convex lens including a projecting surface attached to the bottom face; an anti-reflection structure configured to cover the projecting surface; and an orthogonal projection of an apex of the projecting surface onto the bottom face being located on a line segment connecting a first end located on an outer edge of the bottom face and a second end located on the outer edge of the bottom face, and being located on the first end side with respect to a center point of the line segment, wherein the anti-reflection structure includes: a first anti-reflection structure on the first end side with respect to the apex, and a second anti-reflection structure on the second end side with respect to the apex, and wherein a light transmittance of the second anti-reflection structure is greater than a light transmittance of the first anti-reflection structure, and the first anti-reflection structure and the second anti-reflection structure do not overlap in plan view.