Positioning unit and monitoring device

摘要

A positioning unit (11) for positioning an optical unit (12, 13) comprising at least one optical element in a beam path (20) of a microscope between an objective lens of a microscope and in front of an eye to be monitored is provided, wherein the positioning unit comprises a connection device (21), by means of which the positioning unit can be coupled to the microscope, wherein the positioning unit comprises a positioning device (22), by means of which the optical element is movable relative to the microscope in the longitudinal direction of the beam path, wherein the positioning device is formed by a first double rocker mechanism (31) and a second double rocker mechanism (32), wherein the double rocker mechanisms are interconnected by means of a common coupling member (33). A monitoring device (10) is also provided that comprises the positioning unit (11).

主权项

1. A positioning unit for positioning an optical unit comprising at least one optical element in a beam path of a microscope between an objective lens of the microscope and in front of an eye to be monitored, wherein the positioning unit comprises:
(a) a connection device, wherein the connection device couples the positioning unit to the microscope; and (b) a positioning device, wherein the positioning device comprises an upper pair of first and second rocker arms and a lower pair of first and second rocker arms, and a common coupling member, the common coupling member comprises a perimeter thereof, wherein upper and lower pairs of first and second rocker arms are each directly connected by a link bracket to the perimeter of the common coupling member such that the upper and lower pairs of first and second rocker arms are connected at four different points to the perimeter of the common coupling member, wherein each link bracket pivots about the point of contact with the perimeter of the common coupling member, wherein the upper first rocker arm is connected directly to the lower first rocker arm via a toothed gearing so that movement of the upper first rocker arm is transferred to the lower first rocker arm via the toothed gearing, and wherein the toothed gearing is separate from the common coupling member such that the first upper and lower rocker arms are both directly connected to the common coupling member and to each other via the toothed gear.