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An original combination of two cascaded acousto-optic modulators and electro-optic polarization commutators for stereoscopic laser videoprojection is presented. It is based on the separation by orthogonal polarizations of the two left and right images of a stereoscopic pair. As four lines are scanned simultaneously, a quadrifrequency paratellurite acousto-optic modulator is detailed. The electro-optic cell acts like a commutator switching the polarization from the left state polarization state to the right one. This new architecture is then described and experimentally validated.
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Kastelik et al. (2005) studied this question.
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