| 摘要 |
A back-lit instrument 10 suitable for use in a vehicle comprises an instrument panel 4 having a region 7 to be illuminated, a light source 1 coupled to a light guide 2 comprising a plurality of optical fibres 24 located behind the panel, wherein the instrument further comprises reflecting means 3 also located behind the panel 4 to reflect light emitted from the light guide towards the panel. The optical fibres 24 may be woven together and may have disruptions formed by cutting, moulding, coating or kinking. The reflecting means preferably comprises a concave curved portion 32. LEDs may be coupled to the ends of the light guide. The instrument may be speedometer, while the region to be illuminated may be circular. |
