Illuminating device of instrument panel

Abstract

An instrument panel includes a base on which indicators are movably mounted and a transparent cover positioned above the base. An illuminating device includes a board interposed between the base and the cover. The board defines a number of recesses in a bottom surface thereof for respectively and movably accommodating the indicators therein. The board defines a number of cavities in an end thereof for receiving illuminators, such as light emitting diodes, of different colors therein. The illuminators are connected to and controlled by a control circuit whereby the illuminators are selectively actuated to light the instrument panel with light of different colors by conducting light through the board. Scales of first unit system are formed by means of etching or other suitable manners on the board. Scales of second unit system are formed on the base. The base is provided with an additional light source. Power can be selectively supplied to either the control circuit for actuation of the illuminators or the additional light source. This allows the scales of the first and second unit systems to be selectively shown to observers so as to achieve switching between two unit systems.

Dependencies are inferred from the claim text.