Instrument with illuminated control knob
First Claim
1. A knob for an electronic instrument having a rotary switch with an extending shaft, and a light source proximate to the shaft, the knob comprising:
- a body having a rear face, an opposed front face, and side surfaces extending between the faces;
the rear face defining a bore sized to receive a free end of the shaft;
the body having a light-transmissive portion extending from a first surface portion of the rear face surrounding the bore, such that light from the light source enters the light transmissive portion regardless of the rotary position of the knob; and
the light-transmissive portion of the body extending to at least a first window portion of at least one of the side surfaces and the front face.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic instrument has a rotary switch with an extending shaft, a light source proximate to the shaft, and a knob attached to the shaft. The knob has a body with a rear face, an opposed front face, and side surfaces extending between the faces. The rear face defines a bore sized to receive a free end of the shaft. The body has a light-transmissive portion extending from a first surface portion of the rear face surrounding the bore, such that light from the light source enters the light transmissive portion regardless of the rotary position of the knob. The light-transmissive portion of the body extends to a window in the side surface or the front face.
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Citations
19 Claims
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1. A knob for an electronic instrument having a rotary switch with an extending shaft, and a light source proximate to the shaft, the knob comprising:
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a body having a rear face, an opposed front face, and side surfaces extending between the faces; the rear face defining a bore sized to receive a free end of the shaft; the body having a light-transmissive portion extending from a first surface portion of the rear face surrounding the bore, such that light from the light source enters the light transmissive portion regardless of the rotary position of the knob; and the light-transmissive portion of the body extending to at least a first window portion of at least one of the side surfaces and the front face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic instrument comprising:
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a housing containing circuitry and having an exterior interface panel; a switch element connected to the circuitry and within the housing; the switch including a switch body and an elongated element extending from the body in a forward direction, and movable with respect to the body to a plurality of plurality of positions to change the switch between a plurality of electrical states; a light source connected to the circuitry and positioned in the forward direction from at least a portion of the switch body; a knob connected to the extension and having a transparent portion including a transparent inlet portion adjacent to the light source; and the transparent portion of the knob having an outlet portion away from the light source, and external of the interface panel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification