Rotary Knob Assembly

摘要

A rotary knob assembly having a lightpipe affixed to a push button within a rotary knob portion that may be rotatably affixed to a vehicle control panel. The lightpipe engages a halo ring surrounding the push button and is disposed between the push button and the rotary knob portion. The lightpipe has a plurality of concentric circles recessively disposed thereon to provide illumination to the knob assembly specifically, to the halo ring and a graphic display of the push button. The rotary knob assembly has a first light emitting diode in communication with the control panel to provide light to the lightpipe. Light is transmitted and refracted through the lightpipe illuminating the halo ring surrounding the push button as well as distributes light to the recessed portion or gaps between the plurality of concentric circles which allow light to flow directly to the graphic display of the push button.

主权项

1. A rotary knob assembly for a vehicle control panel, comprising:
a push button having an upper surface with a graphic display therein; a halo ring disposed peripherally around the push button; a lightpipe having a middle portion and a peripheral flange, the peripheral flange of the lightpipe engages the halo ring; a plurality of concentric circles recessively disposed across the middle portion of the lightpipe, the plurality of concentric circles define a central axis of the lightpipe, and a first light emitting diode (LED) adjacent to the lightpipe, the first LED emits light to the middle portion of the lightpipe, wherein a portion of the light is refracted from the middle portion the lightpipe and through the peripheral flange to provide illumination to the halo ring and wherein the light is distributed from the middle portion through the plurality of concentric circles to provide illumination to the graphic display of the push button located within the rotary knob assembly.