Abstract: The invention relates to a periscope device for transmission of a surrounding represented by first light borne information (L1) to the view opening (106), wherein the first light borne information (L1) at the view opening is arranged to be presented together with visual supplementary information represented by second light borne information (L2), wherein the visual supplementary information (L2) is arranged to be provided by means of a projector (P). The invention also relates to a vessel.

Abstract: The present invention near field scanning optical microscope NSOM, and related method thereof, provides a high resolution image of a sample in aqueous solution without damaging the sample. This attribute will greatly expand the applications and utility of a NSOM in biomedicine, among other fields. Moreover, the NSOM can be further extended to include signals other than light. In operation, a pipette is filled with an electrolyte solution (aqueous solution) and lowered through the reservoir toward the surface of the sample while the current between the electrode inside the pipette and the electrode in the reservoir is monitored. As the tip of the pipette approaches the surface, the ion current decreases because the space through which ions can flow is reduced. The pipette is then scanned laterally over the surface and the path of the tip pipette follows the topography of the surface.