Opto-Electronics


CMOS digital photo IC for colour sensing

7 February 2007 Opto-Electronics

Hamamatsu Photonics' new 12-bit digital output colour sensor Photo IC, the S9706 device, consists of a matrix photodiode array, coupled to an RGB (red, green and blue) filter matrix to give colour response. The device is combined with 'in house' CMOS processing electronics all within a monolithic silicon chip.

The output of the S9706 is in 12-bit digital format with the colour intensity of red, green and blue read out sequentially at potentially high speed. According to the company it is easily operated with a standard 3,3 V CMOS power supply and it has higher speed and is lower cost than three individual colour image sensors. It is also highly accurate and easier to implement than the current discrete three-colour photodiodes.

The S9706 is suited for applications such as colour sensors for displays (LCDs, televisions and monitors), colour rendering for LED backlights, office and industrial lighting control, colour printing applications, environmental sensors etc.



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