Patent ID: 8780461

Claim:
An optical lens comprising: a plurality of lenses, each lens including: a lens portion; and an edge portion having a conical surface formed thereon; and a shading plate disposed between the lenses, wherein the lenses are overlapped with the optical axes thereof aligned by engaging the conical surfaces of the lenses with each other while interposing the shading plate between the lenses, the edge portion of the lenses has an annular inclined surface formed thereon, the inclined surface reflecting, toward an object, light traveling toward the edge portion after reflected by the lens portion, a second surface adjacent to an image, of at least one of the lenses is a concave surface recessed toward the object in the form of a curvature, the inclined surface is formed at a position surrounding the concave surface, the inclined surface is formed between the lens portion and the conical surface in such a manner that the inclined surface surrounds the lens portion, and the inclined surface is recessed toward the object.