Patent ID: 7630035
Filing Date: 2009-12-08
Classification: G02F

Abstract:
1. A reflective structure comprising: a base, and; a reflective means formed on said base, wherein said base comprises: a supporting member provided with a first fundamental surface having portions differing in their height and a second fundamental surface having portions differing in their height; a first undulating portion, formed on said supporting member, having a first recess or projection, and; a second undulating portion, formed on said supporting member, having a second recess or projection associated with said first recess or projection, wherein said first and second fundamental surfaces are arranged in a first direction at a first fundamental surface pitch, wherein said first and second undulating portions are arranged in said first direction at a first undulating portion pitch, and wherein a larger pitch of said first undulating portion pitch and said first fundamental surface pitch is a non-integral multiple of a smaller pitch of said first undulating portion pitch and said first fundamental surface pitch, wherein said supporting member is provided with a third fundamental surface having portions differing in their height, wherein said base comprises a third undulating portion, formed on said supporting member, having a third recess or projection associated with said first recess or projection, wherein said first and third fundamental surfaces are arranged in a second direction at a second fundamental surface pitch. wherein said first and third undulating portions are arranged in said second direction at a second undulating portion pitch, and wherein a larger pitch of said second undulating portion pitch and said second fundamental surface pitch is a non-integral multiple of a smaller pitch of said second undulating portion pitch and said second fundamental surface pitch.