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“Let the love light guide me home,” Shultz sings on the melancholy “Skin and Bones.”

Leia calls the tech “Diffractive Lightfield Backlighting” and says that it works by placing a “nanostructured light guide plate” beneath the LCD.

BB-9E’s head is comprised of two LEDs and a light guide.

The cable functions as a kind of light guide, guiding the light pulses introduced at one end of the cable through to the other end, where a light-sensitive receiver converts the pulses back into the electronic digital Is and Os of the original signal, so they can then show up on your computer screen as e-mail or in your cell phone as a voice.

Leia essentially replaces the standard light guide with their own more sophisticated panel.