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Friday, April 06, 2007

LED lighting in Cadillac CTS sedan

Rear of the Cadillac CTS, showing vertical LED light tubes next to the vertical rear light (containing multiple red LEDs). Below this is a white backup (reversing) light comprising two high-power white LEDs. A horizontal strip of red LEDs run above the badge, and comprises the center high-mounted stop lamp (CHMSL).
The beauty of light is its interpretation by the human brain. This seems to be the meme driving auto designers who are increasingly using LED accent and niche lights to visually enhance the overall automotive experience. While Daimler and Audi have been the leaders in this (the high end S class, not your pedestrian C class :) the yankees seem to have woken up to the possibilities of using LED's in auto lighting (this is happening even in India and my firm is neck deep in auto-LED projects). From LED Mag

Cadillac focused on new lighting systems to make the 2008 CTS sport sedan as recognizable at night as its new styling does in the light of day, according to an article in the Detroit Free Press.

A total of 127 LEDs illuminate the CTS's interior and exterior, creating a unique look that builds on the brand's heritage of innovative lighting and design, according to Cadillac product director John Howell.

LED light pipes -- clear tubes that direct light -- for the CTS's brake, turn, backup and running lights are the latest example of the vertical tail lamps that have distinguished Cadillacs since 1948.

"Lighting is one of the last frontiers to differentiate cars," said CTS design director John Manoogian, adding that "countless hours and days" went into designing the CTS's stacked vertical lights. "We decided to make lighting a key element of the car's appearance and character."

The interior also uses white ambient LED lighting in the door pulls, foot wells and recessed between the upper and lower instrument panels. The result, says Cadillac, is a dramatic effect similar to recessed lighting used in contemporary homes.

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