RGBC light sensor sees through dark glass

3rd December 2014
Posted By : Mick Elliott
RGBC light sensor sees through dark glass

Farnell element14 has introduced the Avago APDS-9950 sensor providing red, green, blue and clear (RGBC) light sensing and proximity detection under a variety of lighting conditions and through a variety of attenuation materials, including dark glass. The proximity detection feature allows a large dynamic range of operations for accurate distance detection.

For example, it can be used to enable a mobile phone to detect when the user positions the device close to the ear.

The IR LED sink current is factory-trimmed to provide consistent proximity response without requiring customer calibrations. An internal state machine provides the ability to put the device into a low power state in between proximity and RGBC measurements, providing very low average power consumption.

The colour-sensing feature is useful in applications such as LED RGB backlight control, solid-state lighting, reflected LED colour sampler and fluorescent light colour temperature detection.

The integrated IR blocking filter also makes the APDS-9950 an excellent ambient light sensor and colour temperature monitor sensor.

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