| 摘要 |
A device for displaying a two dimensional image to a viewer may comprise a light pattern generator (1) and a control unit (3) connected to the light pattern generator for causing the generator to produce a sequence of light patterns corresponding to respective different portions of said image. Due to the movement of the generator and the viewer's persistence of vision, the viewer sees what appears to be said two dimensional image. The generator can be incorporated in an item of apparel such as a wrist band (6) or a shoe (16). The image displayed could comprise an advertising slogan or designer label. In another embodiment, light patterns produced by a pattern generator are incident on a rotating plate and reflected via a transparent cylinder to a viewer. In yet further embodiments, the display system may comprise an LED array (110 Figure 7), (302 Figure 10) or (401 Figure 12) arranged on a bicycle wheel, yo-yo, spinning top or the like, the arrays being controlled by control means which is responsive to gravity switch (118) or radiation sensing switch (RxTx,403). |
