摘要:
An anodized layer formation method of the present invention includes the steps of: (a) providing an aluminum base (10) which has a surface (18s) that is made of aluminum; (b) anodizing the surface (18s) to form a barrier-type alumina layer (12); and (c) after step (b), further anodizing the surface (18s) to form a porous alumina layer (14) which has a plurality of minute recessed portions (14p). According to the present invention, a method is provided that enables formation of a porous alumina layer which has an interpore distance of a desired magnitude with the use of an aluminum base which has a surface that is made of aluminum, irrespective of the surface form.
摘要:
The present invention aims to provide an antireflection film having low reflectivity and suppressing glare. The antireflection film comprises a surface that comprises a moth-eye structure comprising multiple projections. Apexes of any two adjacent projections are apart from each other by a distance not longer than a wavelength of visible light. The moth-eye structure has sticking structures each of which includes projections with tip portions of the projections adhering to each other. Each of the sticking structures is 0.05 µm or greater and smaller than 1 µm in diameter. The sticking structures exist at a number density in planar area of the antireflection film of 0.01 pcs/µm 2 or more and less than 20 pcs/µm 2 .
摘要:
A mold inspection method of the present invention is a method for inspecting a mold (1) which has a porous alumina layer (6) over its surface, the porous alumina layer (6) having a plurality of minute recessed portions, the method comprising: step a of providing, based on a relationship between a first parameter that is indicative of a thickness of the porous alumina layer and a color parameter that is indicative of a color of reflected light from the porous alumina layer, first color information which represents a tolerance of the first parameter of a porous alumina layer which has an uneven structure that is within a tolerance; step b of providing a mold which is an inspection subject, the mold having a porous alumina layer over its surface; step c of obtaining a color parameter which is indicative of a color of reflected light from the porous alumina layer of the inspection subject mold; and step d of determining a suitability of the first parameter of the inspection subject mold based on the obtained color parameter and the first color information. According to the present invention, it is possible to nondestructively and readily inspect whether or not the minute uneven structure at the surface is within a predetermined range.
摘要:
A moth-eye mold fabrication method of the present invention includes the steps of: (a) anodizing a surface (18s) of an aluminum film (18) to form a porous alumina layer (14) which has a plurality of minute recessed portions (14p); (b) after step (a), bringing the porous alumina layer into contact with an etching solution, thereby enlarging the plurality of minute recessed portions of the porous alumina layer; and (c) after step (b), further anodizing the surface to grow the plurality of minute recessed portions, wherein a voltage applied in step (c) is higher than a voltage applied in step (a). According to the present invention, a mold fabrication method is provided which is capable of preventing formation of a plurality of tiny pores in one micropore.
摘要:
The present invention provides an anti-reflective film that prevents wavelength dispersion from being applied to light transmitted through an anti-reflective film. The present invention is an anti-reflective film, which reduces reflection of visible light on a surface of a substrate by being mounted on the substrate, has a wavelength dispersion structure for applying first wavelength dispersion to visible light transmitting through the anti-reflective film, and contains a wavelength dispersion material for applying second wavelength dispersion to the visible light transmitting through the anti-reflective film, wherein visible light transmitted through the anti-reflective film has flat transmission wavelength dispersion in a visible light region.