Patent ID: 7113077

Claim:
A measuring gauge comprising: a rotatable LED pointer having a light output, the output of the LED pointer appearing an arc of light to a user as the pointer is rotated, the arc of light representing a quantity of a desired display unit; a rotary transformer; a brushless motor magnetically coupled to the LED pointer; a high speed controller coupled to the motor and the rotary transformer, the controller receiving an indication of the quantity and responsively programmed to actuate the rotary transformer in order to illuminate the LED pointer rotating radially about a face of a graduated lens at a substantially constant speed and to activate and deactivate the LED pointer so as to adjust the length of the arc of light and thereby to indicate the quantity of the desired display unit to the user; a touch switch to allow the user to view, reset, and program operating functions of the gauge; and circuitry for sensing the ambient light level for responsively controlling the intensity of the LED pointer and a LED shift light output.