Abstract: An internal check mirror for an overhead bin comprises a Fresnel mirror having a convex mirror function which comprises a substrate of a transparent resin, a plurality of minute grooves having V-shaped cross-sections formed on a back surface side of the substrate, a reflective film covering a surface of the plurality of minute grooves and a protective layer covering the reflective film. A thickness of the Fresnel mirror is from 0.1 to 1.0 mm and a radius of curvature based on inclined surfaces of the plurality of the minute grooves is from 200 to 1000 nm. The Fresnel mirror has a width direction dimension of from 200 to 800 mm and a longitudinal directional dimension of from 150 to 600 mm.

Abstract: Provided are an internal check mirror for an overhead bin that makes it possible to increase the size of a mirror image while having substantially equivalent weight to a conventional one and improve visibility, and a method for manufacturing the same. An internal check mirror 1 for an overhead bin comprising a Fresnel mirror 2 having a convex mirror function is configured by arranging a plurality of minute circular grooves 4 having V-shaped cross-sections concentrically on the back surface side of a substrate 3 formed from a transparent resin, covering the surface of these minute grooves 4 with a reflective film 5, and covering the reflective film 5 with a protective layer 6. The thickness of the Fresnel mirror 2 is 0.1-1.0 mm, and the radius of curvature of a virtual arc based on the inclined surfaces 4a of the plurality of minute grooves 4 is 200-1000 mm.

Abstract: A mirror, when attached along a curved surface, facilitates recognition of an image in a blind spot by reducing a feeling of strangeness caused by the aspect ratio of the image. Many linearly-extending strip reflective surfaces 5a are arranged on a surface of a sheet 2 to be parallel and adjacent to one another. An inclination angle A formed between a width direction of each of the strip reflective surfaces 5a and a surface direction of the sheet 2 is sequentially changed with an increase in a distance in a direction transverse to an extension direction of the strip reflective surfaces 5a. An aggregate of the strip reflective surfaces 5a has a cylindrical convex mirror function, and the mirror 1 is bendable in a cylindrical shape about an axis parallel to the direction transverse to the extension direction of the strip reflective surfaces 5a.

Abstract: A porous polystyrene gel is produced by a suspension polymerization in an aqueous system under an incorporation of more than 5 mole % of a radical polymerization catalyst to a total amount of styrene and divinyl benzene with an inert organic solvent.