Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2008-07-22
2008-07-22
Mack, Ricky L (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S291000, C359S292000, C359S298000, C359S618000, C359S640000
Reexamination Certificate
active
07403320
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.
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Bausenwein Bernhard Rudolf
Mayer Max
Mack Ricky L
Thomas Brandi N
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