The Cooled digital camera is capable for long time exposure, especially for chemiluminescence detection. The long time exposure causes the heat of the CCD/CMOS sensor, and brings dark current noise, which may cover the weak signals of the samples and lower the Signal to Noise Ratio (SNR). Thus, we cannot find the sample in the image. To lower the impact of the dark current, we adopt the Peltier cooling technology to keep the temperature of the sensor at -30 degree.
For Chemiluminescence detection, a cooled digital camera is necessary. The maximum exposure time of our cameras is up to an hour.