摘要:
There is provided an optical element including: a substrate; and a plurality of microlenses formed on the substrate. A reflecting surface of the microlens is an aspherical surface and asymmetrical with respect to an optical axis of the microlens. A pitch between adjacent ones of the microlenses is 10 to 230 μm. A depth of the microlens is 3.2 to 15.4 μm.
摘要:
An optical element, which has an antireflection performance offering excellent wavelength band characteristics and incident angle characteristics, includes a substrate and structures that each are formed of a convex portion and that are arranged in plural on a surface of the substrate at a fine pitch equal to or less than a wavelength of light. Each of the structures has a quadrangular pyramid shape or a truncated quadrangular pyramid shape that has a quadrangular bottom surface, and each of four sides that farm the quadrangular bottom surface is curved toward a center of the bottom surface.
摘要:
A nanostructure that is visually recognized as being seamless by its more regularly and more uniformly formed fine concave-convex structure and that exhibits an excellent antireflection effect against light in a visible wavelength range is provided. Such a nanostructure is configured by a number of rows of tracks each including structures, formed by protrusions or depressions on a surface of a substrate, arranged at a predetermined fine pitch. In this nanostructure, a distance between centers of the structures adjacent to each other across a strip-shaped portion (seam) in which portions with no structures within the predetermined pitch are continuously formed in a track arrangement direction is adjusted so as to prevent visual recognition of the seam.
摘要:
A conductive optical device includes: a base; a plurality of structures supported by the base, and arranged at a pitch that is equal to or shorter than a wavelength of visible light; and a transparent conductive layer provided on a surface-side of the structures, and having a shape that follows along a surface shape of the structures. The following relational expressions are satisfied: y≧−1.785x+3.238 y≦0.686 where x is a refractive index and y is an aspect ratio, of each of the structures.
摘要:
An optical device that has an antireflection function, the optical device including: a base; and a plurality of structural bodies, which are formed by convex portions or concave portions, arranged on a surface of the base with a fine pitch that is equal to or smaller than a wavelength of visible light, wherein the plurality of structural bodies are arranged so as to form tracks of a plurality of rows on the surface of the base and form a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and wherein a packing ratio of the structural bodies to the surface of the base is equal to or higher than 65%.