The S13131-1536 from Hamamatsu Photonics is a CMOS Image Sensor with Data Rate 2 MHz, Sensitivity 280 V/(lx·s), Dynamic Range 933 to 3500 times, Clock Frequency 50 kHz to 2 MHz, Supply Voltage 3.15 to 3.45 V. More details for S13131-1536 can be seen below.