Patent ID: 7923123
Filing Date: 2011-04-12
Classification: G02B

Abstract:
1. A decoration panel comprising: a transparent plate-shaped base member having a large number of small reflection portions continuously formed in an arrangement defined by modification of a basic three dimensional shape with a 1/f fluctuation over one of a front face of the base member, on which light impinges, and a rear face of the base member opposite the front face, the small reflection portions each having a three dimensional concave boundary surface capable of causing reflection, interference, and diffraction of incident light impinging onto the base member to thereby generate random changes in brightness of reflection light from the boundary surface, wherein upon a change in at least one of the direction of the incident light in relation to the base member, a viewing point in relation to the base member, and the position of the base member in relation to the incident light or the viewing point, irregular changes occur in the brightness of reflection light generated through reflection, interference, and diffraction of light occurring at the small reflection portions, and chromatic aberrations are produced through shift of light wavelengths.