For years we dreamed of a back-illuminated version of the KAF-16803 CCD – and here it is, except with high throughput and lower noise. The KL4040 BI has the high sensitivity of a CCD42-40, but with twice the area and 20% lower cost.

Quantum efficiency (QE) measures how effectively a detector converts incoming photons into electrons. In our graphs, QE is expressed as a percentage. A sensor’s QE typically varies based on its architecture, coatings, and materials. High QE remains a crucial consideration for applications such as astronomy, space debris imaging, and life science research.