ams introduces new tuneable-white lighting smart system sensor

Sensor solutions supplier ams has announced the release of a new tuneable-white lighting smart system sensor which will allow OEM lighting manufacturers to access the company’s closed-loop CCT tuning and daylight compensation while retaining the existing host microprocessor architecture in their smart lighting design.

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The AS7225, which extends ams’ Cognitive Lighting™ smart lighting manager family, is equipped with the embedded tri-stimulus CIE XYZ colour sensor.

According to the company, this enables precise colour sensing with direct mapping to the International Commission on Illumination (CIE) 1931 colour space which is recognised as the standard coordinate definition for human colour perception.

Tom Griffiths, Senior Marketing Manager at ams said CCT and daylighting tuning directives are communicated to the host microprocessor via an industry-standard I2C interface, allowing IoT smart lighting manufacturers to avoid costly calibration and tuning algorithm development and reduce time to deployment.

“As the lighting industry moves to tuneable solutions, the inclusion of closed loop sensor-driven integration not only increases white or daylighting tuning precision, it also loosens the required precision for both LED binning and system components,” Mr Griffiths remarked.

“This results in cost reductions for both the overall bill of materials, as well as in time and cost savings in the materials management and manufacturing processes.”

He said the efficient AS7225 is available in a 4.5 x 4.7mm LGA package, for flexible integration into luminaires, light-engines and larger replacement lamps, such as LED linear T-LED products.

“Recent trends in LED device pricing show that chips have moved away from being the primary cost element in a typical commercial luminaire. This means that in just a few years, tuneable lighting will become the standard for new commercial lighting installations”, Mr Griffiths added.

“The comfort, productivity and health benefits of good lighting have been clear for decades, and as it is becoming cost effective to do so, tuneable lighting will be a key element in delivering those benefits from LED smart lighting platforms.”

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