Patent ID: 6778095
Filing Date: 2004-08-17
Classification: G08B

Abstract:
A variable light source device for a pointer-type meter, comprising:a memory having stored therein a controlling program for timing of changing light sources; an electronically controlled circuit for generating a driving signal for selectively driving a color luminescent element set; the color luminescent element set being provided at respective positions in the meter body for receiving the driving signal from said electronically controlled circuit, and being selectively operable to collectively generate a plurality of colors including at least one color selected from the group consisting of: red, green, blue, yellow, indigo, purple, white or mixed colors thereof; a microprocessor coupled to the electronically controlled circuit and the memory for receiving a displacement signal of the pointer-type meter and executing a corresponding controlling program stored in the memory to actuate the electronically controlled circuit responsive thereto; wherein said color luminescent element set is operable responsive to said electronically controlled circuit to generate synchronized mixed lighting, whereby different colors are generated through the control of said microprocessor in response to a measured value in the meter to visually alert the user.