Wide Dynamic Range Low Light Level Cmos Image Sensor

Cameras have problems with underexposed and overexposed images because they can only accurately record the middle area of light between very dark and very bright.

Wide dynamic range low light level cmos image sensor.

A unit sends out a short laser pulse that illuminates. Khana new wide dynamic range cmos pulse frequency modulation digital image sensor with in pixel variable reference voltage proceedings of 51st midwest symposium on circuits and systems knoxville usa 10 13 august 2008 pp. How wide dynamic range works. Wide dynamic range cmos image sensor.

A wide dynamic range cmos image sensor is proposed exhibiting a linear response at a low illumination level and a logarithmic response at a high illumination level. Current attempts to reduce the leakage current rely on costly process modifications. Tering gated cmos image sensor with linear wide dynamic range wdr implementation which is synchronized with an external active pulsed light source that is intended for a low light high responsivity night vision system. The new design also offers a wide dynamic range and is equally effective in responding to very bright light.

The system works as follows. Cameras with wdr technology have advanced sensors that can produce a wider range of lighting allowing them to record in a higher light depth. Spi is dedicated to provide high definition hd ultra low light sensors for a wide variety of medical and military applications.