| 摘要 |
A light guide for an automotive tail light may be efficiently made with a plurality of thick planar light guides stacked side by side to have a common input source point at one end, but spread at their respective opposite ends to be arranged to form parallel planes separated sufficiently to project a relatively larger combined image that may suggest in outline a larger object. The relatively thick plates efficiently transmit light. The planar structures direct light efficiently in the horizontal plane. The side by side offset of the output windows creates an image of a larger more readily seen structure.
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