2/3” vs. 1/2” vs. 1/3” Full-HD image sensor size for global security applications

In theory, bigger pixels on full-HD CCD image sensors are better for global security applications because they are more sensitive for improved low light performance.  The drawback is that bigger optics are required so size, weight, power, and cost (SWaP-C) requirements are challenged.  As many systems are upgrading from standard definition to full-HD cameras or…