| 摘要 |
A lighting device comprises: - light radiation sources such as LEDs (12a, 12b, 12c, 2d) arranged in a plurality of cells (C1, C2, C3, C4) wherein each cell comprises at least one light radiation source; - an output screen (16) for receiving the light radiation produced by the aforementioned sources (12a, 12b, 12c, 2d); and - optical elements such as reflectors 18 and/or lenses 20 arranged between the cells (C1, C2, C3, C4) and the screen (16) so as to convey onto the screen (16) with a uniformly distributed intensity the light radiation produced by the light radiation sources (12a, 12b, 12c, 12d). The illumination of the screen (16) therefore results from the superimposition of the light radiation individually produced by the cells (C1, C2, C3, C4). |
