Projection arrangement with alternating polarization has bearer unit for two different polarization filters movable relative to propagation direction so all filter points move at same speed

摘要

The projection arrangement has a light polarization device for polarizing a light beam in two different polarization directions with a bearer unit (13) via which the light beam (9) enters that carries two different polarization filters (15,16) and that can be moved with respect to the beam propagation direction so that all points of the filters move at essentially the same speed.