Mount Assembly, Which is Adjustable in a Plurality of Steps, for Two Optical Components

Adjustable mount assembly having two mount parts which are adjustable relative to one another and which themselves form adjustable mounts respectively comprising an outer mount frame and an inner mount frame. The mount assembly permits a highly precise adjustment of two optical components relative to one another in a plane perpendicular to an axis and an adjustment of the two mutually adjusted optical components relative to a reference base.