Method for displaying a three-dimensional image on a large screen projection surface using a laser projector

摘要

PCT No. PCT/DE97/01286 Sec. 371 Date Dec. 14, 1998 Sec. 102(e) Date Dec. 14, 1998 PCT Filed Jun. 19, 1997 PCT Pub. No. WO98/00748 PCT Pub. Date Jan. 8, 1998For three-dimensional image representation on a large-screen projection surface by means of a multimode or, respectively, monomode laser projector, in the first case it is proposed to direct the multimode laser beam onto a polygonal mirror with layers that alternatively polarize light in two different directions, from which lines of the one direction of polarization and lines of the other direction of polarization and lines of the other direction of polarization are then plotted on the large-screen projection surface in alternating fashion. In the second case, the monomade laser beam is directed by a partially transparent mirror and only then onto the polygonal mirror. A partial beam derived from the partially transparent mirror is rotated in its direction of polarization and directed onto the polygonal mirror from another direction. The polygonal mirror alternately directs the one and the other incoming beam onto the larhe-screen projection surface, and thus alternatively plots lines of the one and lines of the other direction of polarization on the large-screen projection surface. Respective images are allocated to the lines of the one and to the lines of the other direction of polarization, which images can be seen three-dimensionally using 3D glasses.