Abstract: The 2-channel display system with micro electromechanical systems (MEMS, e.g. DMDs from Texas Instruments) simultaneously generates a right and a left image in two discrete modulation channels, which differ by the polarization of their light beams. More specifically, the invention relates to the chirality (handedness) of MEMS and the geometric problems associated with this handedness in superposition systems. In this application we uncover a solution to superpose the images modulated by identical MEMSs which have their mirror deflection axes oriented parallel to an axis of symmetry of the image raster of the MEMSs.

Abstract: The superposition system with micro electromechanical systems (MEMS, e.g. DMDs from Texas Instruments) superposes the “ON”-lights of two MEMSs. More specifically, the invention relates to the chirality (handedness) of MEMS and the geometric problems associated with this handedness for superposition systems. In this application we uncover a solution to superpose the images modulated by two MEMSs using an exchange of columns and rows in one of the addressing matrices.

Abstract: The 2-channel display system with micro electromechanical systems (MEMS, e.g. DMDs from Texas Instruments) simultaneously generates a right and a left image in two discrete modulation channels, which differ by the polarization of their light beams. More specifically, the invention relates to the chirality (handedness) of MEMS and the geometric problems associated with this handedness in superposition systems. In this application we uncover a solution to superpose the images modulated by identical MEMSs (imagers of the same isomer type) without additional mirroring.

Abstract: Polarization beam splitters (P1, P2, P3, P4) are coupled in pairs along optical axes such that their planes of polarization are perpendicular. Said complementarity P1/P2, P1/P3, P4/P2, P4/P3 enables reciprocal coupling of a polarizing transmission to a polarizing reflexion for both partial beams. During cross-polarization, two complementarily linear polarized partial beams occur, which have the same high polarization quality and the same intensity, both being symmetrically folded. During cross-superpositioning the reverse is the case. Each of the two partial beams which are to be superposed are combined by transmission and reflexion by mutually complementary polarizers into a common axis. Coupling of cross-polarizers results in efficient arrangements of systems which operate with complimentarily polarized radiation, e.g. 2-channel image display systems with polarization-rotating reflective spatial light modulators RLM1 and RLM2.

Abstract: The two channel stereo display system with micro electromechanical systems (MEMS, e.g. DMDs from Texas Instruments) simultaneously generates a right and a left image in two discrete modulation channels, which differ by the polarization of their light beams. More specifically, the invention relates to the chirality (handedness) of MEMS and uncovers solutions for some of the geometric problems associated with this handedness in stereoscopic systems. Unpolarized light is split by a first PBS (5) and directed via two TIRs (3,4) onto two MEMSs (1,2) for spatial modulation. In some embodiments, mirror symmetric, compact light paths and complete superposition of the two subimages with a second PBS (6) are realized with two different MEMSs (1) and (2) which are a pair of stereo isomers. Furthermore we uncover solutions with two identical MEMSs.