Color sensor provides highest infrared cutoff characteristics
The BH1745NUC uses original infrared removal technology and computing methods to achieve what the company claims is the industry’s highest infrared cutoff characteristics, reducing the effects of infrared rays by more than 10x compared with conventional products. The device enables compatibility with dark (low permeability) optical windows – unlike conventional color sensors that cannot provide accurate detection due to the effects of infrared interference when dark windows are used.
In recent years a greater number of smartphones, tablets, and other display-equipped devices have begun to integrate color sensors in order to analyze the RGB components of ambient light for display image adjustment or perform LED backlight dimming based on the surrounding brightness levels.
Conventional color sensors require a transparent optical window in order to accurately detect visible (i.e. RGB) light. The design trend in many smartphones and portable devices is to adopt dark optical windows, which although are more stylish make it difficult to precisely detect colors, since less visible light gets through and the light that does permeate gets mixed in with IR rays.
In response, ROHM is taking advantage of optical sensor expertise cultivated over many years, including original infrared removal technology and proprietary computing methods, to develop a color sensor that provides unmatched performance – even with dark optical windows.
Availability
The BH1745NUC is sampling now and OEM quantities will be available from April 2015.
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
