Optics between Two Polymeric Convex Lens Arrays on Spherical Surface.

概要

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Optics between two micro convex lens arrays on a spherical surface (SMLA) with an aperture of 0.20 mm made of poly (methyl methacrylate) has been investigated. The convex side of the SMLA set was turned to an object, and the imaging on the SMLA was observed from the concave side. The inverted image of the object SMLA focused by the lens at the center appeared in the middle of the lens, but those by other lenses shifted to the upper and lower sides or the right and left sides within each lens, as the lenses went away from the middle to the four sides on the SMLA. When the eye SMLA was superposed on the object SMLA, an image was formed on the shining lenses in the eye SMLA. When the inverted image pitch in the object SMLA was larger than the lens pitch of the eye SMLA, the image appeared as an upright one, and when the relation between the two pitches reversed, the image appeared as an inverted one. The mechanism of the image formation was clarified by Moiré fringes between the pitch of inverted images in the object SMLA and the pitch of lenses in the eye SMLA. When the radius of curvature of the SMLA was small, the magnification of an image appeared in the eye SMLA was proportional to the radius, and was inversely proportional to the distance between an object and the object SMLA.
公益社団法人高分子学会の論文