| 摘要 |
A lighting assembly has a light source emitting light, an angular filter having a main surface, and a light guide having a main surface. The main surface of the filter is parallel to the main surface of the light guide. The filter may be configured to reflect light rays originating from the light source that are incident at small angles with respect to a direction normal to the main surface of the filter, and to transmit light rays originating from the light source that are incident at larger angles with respect to the direction normal to the main surface of the filter.
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