Patent ID: 8832861

Claim:
A device for the near-field optical measurement of a specimen comprising a probe, a primary mirror ( 10 ), which is a concave mirror, and at least two secondary mirror(s) ( 30 ), wherein each one of the secondary mirrors ( 30 ) is located in an independent optical pathway, whereby each one independent optical pathway starts at the probe and passes the primary mirror ( 10 ) and the secondary mirror ( 30 ), each one of the secondary mirrors ( 30 ) is the first mirror located in the respective independent optical pathway downwards the primary mirror ( 10 ), whereby the optical pathways start at the probe and pass the primary mirror ( 10 ), and the secondary mirrors ( 30 ) are arranged such that the parts of different independent optical pathways that are located downwards the secondary mirrors ( 30 ) are not parallel to each other, whereby the independent optical pathways start at the probe and pass the primary mirror ( 10 ) and the respective secondary mirror ( 30 ).