Patent ID: 7417237
Filing Date: 2008-08-26
Classification: G03B

Abstract:
1. A radiographic image conversion panel for mammography comprising: a substrate having a rectangular shape, and first and second pairs of two parallel sides being orthogonal to each other; a phosphor layer having a rectangular shape, and being formed on said substrate; a moisture-proof protective film for sealing said phosphor layer; and a seal bonding layer for bonding the perimeter of said moisture-proof protective film to said substrate, wherein said phosphor layer is positioned on said substrate such that a distance from at least one side of said first pair of two parallel sides of said substrate to an adjacent end of said phosphor layer is a first distance which is not long enough to provide a predetermined level of moisture-proof effect when said moisture-proof protective film is bonded to said substrate through said seal bonding layer, and such that distances from two sides of said second pair of two parallel sides of said substrate to adjacent ends of said phosphor layer are a second distance which is longer than said first distance, and is long enough to provide said predetermined level of the moisture-proof effect when said moisture-proof protective film is bonded to said substrate through said seal bonding layer, and wherein said seal bonding layer is formed in areas of said second distance on said second pair of two parallel sides of said substrate along said perimeter of said phosphor layer, and is formed on a side surface having said at least one side of said first pair of two parallel sides of said substrate, or on said side surface and a rear surface of said substrate.