Patent ID: 7591858

Claim:
A near-field microscope for investigating a specimen, the microscope comprising: a near-field probe; a light-source device arranged for illuminating the near-field probe along a first illumination beam path; a detector device arranged for detecting light scattered at the near-field probe along the first illumination beam path; a camera device arranged for observing the specimen and the near-field probe along a second illumination beam path; a mirror optic including a reflector; said reflector having the shape of a paraboloid with a paraboloid axis and a focal point, to which the first illumination beam path is directed extending in parallel to the paraboloid axis; and said reflector having at least one edge recess, through which the second illumination beam path is directed to the focal point, wherein the second illumination beam path deviates from the first illumination beam path; and an adjustment element being located on the edge recess and having a surface aligned perpendicularly to the paraboloid axis; wherein the near-field probe is arranged at the focal point of the mirror optic; and wherein a microscope lens is located in the second illumination beam path, the microscope lens having an operating distance from the focal point which is greater than a vertical height of the edge recess above the focal point.