Control knob with multi-color indicator
First Claim
Patent Images
1. A control knob, including:
- a control device for controlling a level of a signal in response to a position of said knob;
a light emitting device which emits light of a color chosen from at least two colors dependent upon said level of said signal; and
a portion of said knob receiving and passing said emitted light for viewing by a user.
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Abstract
A control knob for controlling an underlying signal is disclosed. The control knob includes a clear radial portion which serves as an indicator on the knob. The radial portion receives light from a multi-color LED which is housed within a clear shaft of a potentiometer which rotates in concert with the control knob and controls the level of the underlying signal. The multi-color LED emits light of a color which is dependent upon the level of the underlying signal being controlled by the control knob.
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Citations
10 Claims
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1. A control knob, including:
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a control device for controlling a level of a signal in response to a position of said knob;
a light emitting device which emits light of a color chosen from at least two colors dependent upon said level of said signal; and
a portion of said knob receiving and passing said emitted light for viewing by a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification