Abstract: Aspects of the present disclosure relate to a shared image sensor. An example device includes a first lens configured to direct light along a first path in the device, a second lens configured to direct light along a second path in the device, an image sensor configured to receive light from a third path in the device, and an optical element configured to direct the light from the first path to the third path during a first mode. The image sensor is configured to receive the light from the first path during the first mode, and the image sensor is configured to receive the light from the second path during a second mode.

Abstract: A multi-channel membrane, in particular for treatment of liquids, includes at least one outer membrane surface and one inner membrane surface, which forms at least two longitudinally extending inner channels, which are enclosed by the outer membrane surface. It is proposed that the outer membrane surface and the inner membrane surface each form an actively separating layer.