Decoration panel

Details Decoration panel Decoration panel

2011-04-12

2011-04-12

Blackwell, Gwendolyn (Department: 1784)

Stock material or miscellaneous articles

Decorative article

C428S432000, C428S913300

Reexamination Certificate

active

07923123

ABSTRACT:
A large number of small reflection portions are continuously formed over a back face of a base member opposite the light impinging side, in an arbitrary arrangement. The small reflection portions are each formed to have a boundary surface for reflection, interference, and diffraction of incident light impinging onto the base member, to thereby produce random changes in the brightness of reflection light over the entirety of the decoration panel. The small reflection portions have concave boundary surfaces having three-dimensional shape determined though imparting a 1/f fluctuation to a triangular-roof-like basic shape. When 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 is changed, the small reflection portions generate an irregularly changing light-dark pattern in the brightness of reflection right from the small reflection portions.

REFERENCES:
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patent: 3-866646 (1991-04-01), None

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