An OCT examination apparatus for detecting an object by optical coherence tomography, OCT, comprising: - an OCT radiation source adapted to emit OCT radiation having a wavelength of 400nm to 2000nm and a spectral bandwidth which ∘ comprises at least a range from 20nm to 400nm, or ∘ has a narrow bandwidth of less than 20nm to 400nm, wherein the radiation source is tunable such that the narrow bandwidth forms a wider bandwidth of 20nm to 400nm by time-delayed emission of waves in different wavelengths, - an OCT beam path comprising ∘ an OCT output direction of the OCT radiation from the OCT radiation source, and ∘ an OCT input direction of OCT radiation backscattered from an image object, - an OCT radiation receiver for receiving the backscattered OCT radiation from the OCT radiation source, - a housing that accommodates the OCT radiation source and the OCT radiation receiver, - an exit aperture for the OCT radiation of the OCT radiation source formed in the housing, - an entrance aperture formed in the housing for the backscattered OCT radiation of the OCT radiation source, - an OCT exit direction of the radiation through the exit aperture, - an OCT entrance direction of the backscattered OCT radiation through the entrance aperture, - a control unit which is signal-technically connected to the OCT radiation source and the OCT radiation receiver and is designed to detect a plurality of measurement profiles spaced apart from one another in a detection period and to control the OCT radiation source to emit the OCT radiation and the OCT radiation receiver to receive the backscattered OCT radiation within the detection period, wherein the control unit is adapted to keep the OCT output direction and the OCT exit direction constant in their angular orientation with respect to each other during the detection period, wherein the OCT radiation source and the OCT radiation receiver are immovably arranged in the housing, and characterised in that the OCT beam path, comprising the emitted OCT radiation from the OCT radiation source to the exit aperture in the housing and the received, backscattered OCT radiation from the entrance aperture to the OCT radiation receiver, is immobile, in that it is refrained from using movable or controllable deflection means for the OCT radiation within the examination device. - an OCT radiation source adapted to emit OCT radiation having a wavelength of 400nm to 2000nm and a spectral bandwidth which ∘ comprises at least a range from 20nm to 400nm, or ∘ has a narrow bandwidth of less than 20nm to 400nm, wherein the radiation source is tunable such that the narrow bandwidth forms a wider bandwidth of 20nm to 400nm by time-delayed emission of waves in different wavelengths, ∘ comprises at least a range from 20nm to 400nm, or ∘ has a narrow bandwidth of less than 20nm to 400nm, wherein the radiation source is tunable such that the narrow bandwidth forms a wider bandwidth of 20nm to 400nm by time-delayed emission of waves in different wavelengths, - an OCT beam path comprising ∘ an OCT output direction of the OCT radiation from the OCT radiation source, and ∘ an OCT input direction of OCT radiation backscattered from an image object, ∘ an OCT output direction of the OCT radiation from the OCT radiation source, and ∘ an OCT input direction of OCT radiation backscattered from an image object, - an OCT radiation receiver for receiving the backscattered OCT radiation from the OCT radiation source, - a housing that accommodates the OCT radiation source and the OCT radiation receiver, - an exit aperture for the OCT radiation of the OCT radiation source formed in the housing, - an entrance aperture formed in the housing for the backscattered OCT radiation of the OCT radiation source, - an OCT exit direction of the radiation through the exit aperture, - an OCT entrance direction of the backscattered OCT radiation through the entrance aperture, - a control unit which is signal-technically connected to the OCT radiation source and the OCT radiation receiver and is designed to detect a plurality of measurement profiles spaced apart from one another in a detection period and to control the OCT radiation source to emit the OCT radiation and the OCT radiation receiver to receive the backscattered OCT radiation within the detection period,