The role of an iris The P-Iris system involves a new approach to looking at the role of an iris and is the result of a joint development effort between Axis Communications of Sweden and the Japanese lens manufacturer Kowa.
How P-Iris works P-Iris is a new type of iris control that is both automatic and precise. Unlike a DC-iris lens, the main task of the P-Iris control is not to continuously adjust the flow of light through the lens. The primary objective of P-Iris is to improve image quality by enabling the optimal iris position to be set so that the central and best-performing part of the lens is used most of the time.
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P-Iris can automatically make adjustments to deliver optimal image quality. Old technology P-Iris Fig. 4 Note the great depth of field in the picture to the right taken by a P-Iris camera. Old technology (cropped view) P-Iris (cropped view)
Although the P-Iris control is initially available only in Axis network cameras, the technique has the potential of becoming a new industry standard as Axis and Kowa have decided to make P-Iris accessible to the whole industry.