A luminous material comprising a rubber, glass or plastics material matrix. A luminescent material is dispersed throughout the matrix, and a colorant dispersed throughout the matrix. The colourant gives the matrix a colour when it is observed under substantially white light, and the colourant allowing substantial transmission of light emitted by the luminous material.

 
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< Surface light source unit with buffering means, and liquid crystal display with the unit

> Single path road geometry predictive adaptive front lighting algorithm using vehicle positioning and map data

> Backlight module having replacement lamp module

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