Example embodiments relate to luminaire systems with movable modules. One example luminaire system includes a support structure. The luminaire system also includes a plurality of light sources arranged on the support structure. Additionally, the luminaire system includes at least a first and second optical module. The first optical module is provided with at least one first optical element and the second optical module is provided with at least one second optical element. The first and second optical module are configured for being interlocked with respected to each other in a moving direction. Further, the luminaire system includes a moving means configured to move the first optical module relative to the support structure in the moving direction, such that a position of the first and second optical module with respect to the support structure is changed.