TECH TALK HEALTHY LIGHTING
Which brings us to how Ketra lights are made. “Everything,” begins Sooch,
“is designed in-house,” specifying five core elements: a custom multichannel
semiconductor driver chip with built-in optical feedback; a custom emitter
and optics; custom mechanical housings; embedded software and system
software to control the lights and manage a redundant wireless network
and commissioning tools; and calibration software with custom robotics to
manufacture lights in high volumes.
“We use contract manufacturers to build the subassemblies for our products,
and do the final assembly and calibration at our factory in Austin, Texas. With
this control of the entire lighting system, we can insure the highest quality for
the end-user,” explains Sooch.
CREATIVE COLOR WAYS
In addition to producing healthy lighting, Ketra is about customization
and bringing out the inherent beauty of a space or object. According to a
company spokesperson, “People don’t think about the possibility of changing
their lighting, be it for a visual effect—for example, [the Ketra] system can
‘paint’ a room any of hundreds of shades for a special effect—or for a more
comfortable feel in an office.”
This optimal natural light can highlight and enhance the best qualities of food,
jewelry, an object, or color scheme—regardless of what’s going on outside.
The Art Institute of Chicago epitomizes this. Institute curators selected Ketra
lighting based on the color rendering and beam angles, allowing the art to be
seen in its true state.
Working as early as possible on each project with architects, electrical
engineers, lighting designers, developers, and contractors, Ketra says it can
create the most appropriate, site-specific systems. It also can retrofit areas,
everything working together smoothly at the touch of a button.
ABOVE LEFT and RIGHT: A Ketra light output
cycle continually changes throughout the day as
a bulb’s color is measured 360 times per second
in degrees Kelvin.