| 摘要 |
A banklight 10 with a frame 20, a primary diffusing panel 11 stretched across the front of frame 20, a reflecting panel 12 stretched across the rear of frame 20, a secondary diffuser 13 across the frame between the primary diffusing panel 11 and the reflecting panel 12, a light source row 14 along at least one side of the reflecting panel 12 between the reflecting panel 12 and the secondary diffuser 13. The frame is rectangular and is open along the front and rear portions, and the frame is comprised of a plurality of truss members 24. An alternate embodiment of banklight 10 with frame 107, a primary diffuser 108 across front of frame 107, a reflecting panel 104 across rear of frame 107 and over each of multiple light bars 103, each light bar 103 with multiple light sources 101, and a secondary diffuser 106 across frame 107, with secondary diffuser 106 and reflecting panel 104 connected at uniform intervals by side wall diffusing panels 105, to form a series of prismoid tubular gradation cells 100.
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