Analog-style instrumentation display with color-changing pointer
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United States of America Patent
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-
Feb 28, 2012
Grant Date -
Nov 5, 2009
app pub date -
Feb 28, 2009
filing date -
Mar 7, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An analog-style gauge for displaying the value of a parameter measured or sensed by a remote sensor. The gauge comprises an actuator having a selectively rotatable shaft and a pointer fixedly attached to the actuator shaft and capable of being internally illuminated by light directed into the pointer. A light source is disposed to direct light of at least two colors into the pointer. Control circuitry is operably connected to the actuator, the light source and a remote sensor. The control circuitry rotates the actuator shaft within a range of motion in response to signals received from the remote sensor indicative of changes in the value of the sensed parameter. The control circuitry changes the color of light directed into the pointer when the pointer reaches a pre-determined point within the range of motion, whereby the internal illumination of the pointer will change color when the pointer reaches a predetermined point within the range of motion.
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