Patent ID: 11935709
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A wallbox-mountable electrical load control apparatus, comprising:
a button assembly including a plurality of buttons, each of the plurality of buttons having a front surface and a rear surface;
a light guide layer disposed adjacent the button assembly, the light guide layer including a plurality of light dispersion regions, each of the plurality of light dispersion regions adjacent a rear surface of a respective one of the buttons;
a control module, including:
at least one printed circuit board (PCB) having a front surface and a rear surface, the PCB including a plurality electrical contact pairs disposed on the front surface of the PCB;
a plurality of lighting element pairs, each of the lighting element pairs to backlight a respective one of the plurality of buttons, each of the lighting element pairs including a first lighting element and a second lighting element disposed on opposing sides of the respective button;
a first reflector strip disposed along at least a portion of a first edge of the light guide layer, the first edge of the light guide layer disposed proximate the first lighting element included in each of the plurality of lighting element pairs;
a second reflector strip disposed along at least a portion of a second edge of the light guide layer, the second edge of the light guide layer disposed proximate the second lighting element included in each of the plurality of lighting element pairs, the second edge of the light guide layer transversely opposed across a width of the light guide layer from the first edge of the light guide layer;
a plurality of electrical shorting pads, each of the plurality of electrical shorting pads corresponding to a respective one of the plurality of buttons, each of the plurality of electrical shorting pads disposed between the rear surface of respective ones of the plurality of buttons and respective ones of the plurality of electrical contact pairs such that upon actuation of a respective one of the plurality of buttons, a respective electrical shorting pad of the plurality of electrical shorting pads contacts the electrical contact pair;
communication circuitry operatively coupled to the at least one PCB;
control circuitry operatively coupled to the at least one PCB and communicatively coupled to the communication circuitry, the control circuitry to:
receive an input corresponding to an actuation of the respective one of the plurality of buttons;
generate an instruction based on the actuated respective one of the plurality of buttons; and
cause the communication circuitry to transmit the instruction to an operatively coupled electrical load device responsive to the actuation of the respective one of the plurality of buttons; and

a faceplate having a front surface and a rear surface, the faceplate including at least one aperture to accommodate passage of at least one of the plurality of buttons.