Abstract: A device for retaining optical components includes a number of open orifices disposed next to one another in an arrangement. A raceway corresponding to the arrangement is provided, the raceway including a number of detents. A ball bearing follows the raceway and cooperates with the detents so that each of the detents is brought, in a respective following direction, into click-stop engagement with the ball bearing so as to hold the orifices in a selected position. Each of the detents has, in the respective following direction, a profile including a combination of an outer and an inner arc-shaped profile. The outer profile has less curvature than the inner profile and surrounds the inner profile.

Abstract: An inverted microscope that follows an innovative and ergonomic user concept so that a user can properly operate the motorized inverted microscope using the plurality of the control buttons present on the stand even without visual contact. In particular, a plurality of control buttons for operating the motorized microscope functions is provided on the first, second and front faces, the control buttons being brought together into a plurality of groups, each group comprising a plurality of control buttons at least some of which are proved near a tactile element as an aid for user orientation. More particularly, the object of the invention is achieved via an inverted microscope described as follows: An inverted microscope of the invention has a base stand part, which carries a lens turret and a microscope stage, and, furthermore, on which base part a lighting stand part is mounted. The base stand part has a first lateral face, a second lateral face and a front intended to face a user.

Abstract: The invention relates to a device, such as a rotary disk (1) or a longitudinal slider (2), for retaining optical components, this device comprising open orifices (3) arranged next to one another, and a raceway (4) having detents (5) being provided in the direction of the arranged orifices (3), which detents are embodied in such a way that they are to be brought into click-stop engagement with a ball bearing (6) running along the raceway (4), in order to hold the device (1, 2) in a selected position. In order to enable gentle click-stopping of the ball bearing (6) with a wide capture region, it is proposed that the detents (5) have, in the running direction, a profile comprising a combination of two arc-shaped profiles (10, 11), such that an outer profile (11) of lesser curvature surrounds an inner profile of greater curvature (10).