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Abstract

The optical element comprises a beam transformer and at least two non-reciprocal components for propagation-direction-dependent polarization operations such that an entrance aperture of the transmission direction, a common two-directional aperture for an exit in the transmission direction and for an entrance in the reception direction, and an exit aperture of the reception direction can be used in the beam transformer. The beam transformer both transmits an optical beam towards an object and receives the reflected optical beam through the common aperture. The beam transformer outputs the received optical beam through the exit aperture of the reception direction different from the entrance aperture of the transmission direction.

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First Claim