An instrument for a vehicle, by which an instrument board thereof can be seen as well at night as in the daytime is provided. In the instrument, an illuminating panel 50 including a prism sheet 50a transforms light from an LED 50b into planar light illumination for the instrument board 40, the prism...http://www.google.com.au/patents/US20030123259?utm_source=gb-gplus-sharePatent US20030123259 - Instrument for vehicle
