Patent ID: 7281353
Filing Date: 2007-10-16
Classification: A01G,E04D,E04F,E06B,F24S,Y02A,Y02B,Y02P

Abstract:
1. A transparent/translucent panel unit for varying the level of light passing therethrough comprising: a pair of spaced-apart transparent/translucent panels; a plurality of light-controlling members positioned between the panels and mounted for rotation about their longitudinal axes, the light-controlling members each having at least one substantially light-blocking surface, the light controlling members further having contacting engagement surfaces comprising bands of a high coefficient of friction material positioned in alignment on adjacent light-controlling members, whereby the plurality of light-controlling members may be rotated to vary the level of light passing through the panel unit; and at least one pair of opposed elongated carriage members having a series of scalloped surfaces, the carriage members being positioned between the panels to define annular openings with individual light-controlling members supported for rotational movement within the annular openings.