Abstract: A method of generating stereoscopic images and an autostereoscopic system are introduced. Stereoscopic images are obtained by generating, on a screen, a first image having a pattern comprising alternating columns of N left-image pixels or sub-pixels and of N right-image pixels or sub-pixels and a second image having a reversed pattern from the pattern of the first image. A parallel-strip barrier has alternating strips for blocking alternating columns of the first and second images. A tracking system provides position information related to a viewer of the stereoscopic image. A controller shifts to the left or to the right, in relation to the strips of the barrier, the image columns by a number of image pixels or sub-pixels as a function of the position of the viewer.

Abstract: The present disclosure relates to methods and display systems for concurrently displaying two complementary images. Collimated light comprising interlaced series of left and right image rows are received, at angles that alternate over time, on an intensity modulation matrix. The collimated light is transmitted to a patterned retarder capable of applying spatially alternating polarizations to successive rows. The collimated light is further transmitted to a display layer. The angles at which collimated light is received on the intensity modulation matrix and distances between display system components are such that odd lines of the display layer alternate in time between lines of a first image and lines of a second image while even lines of the display layer alternate between lines of the second image and lines of the first image. The first and second images may be discriminated by viewers using polarized glasses.

Abstract: An anti-skid device for a tire of a vehicle wheel includes an anti-skid raceway designed to be placed on the circumferential tread of the tire. An elongate element extends in sliding manner through rear attachment means arranged along the periphery of the rear edge of the raceway. Means for tightening the raceway include at least one guide member passing through the raceway to let a part of the elongate element slide freely transversely to the raceway, in front of the front edge of the raceway, elastically extensible means arranged along the elongate element, and securing means to connect at least one end of the elongate element to the front element.

Abstract: The present disclosure relates to methods and display systems for concurrently displaying two complementary images. Collimated light comprising interlaced series of left and right image rows are received, at angles that alternate over time, on an intensity modulation matrix. The collimated light is transmitted to a patterned retarder capable of applying spatially alternating polarizations to successive rows. The collimated light is further transmitted to a display layer. The angles at which collimated light is received on the intensity modulation matrix and distances between display system components are such that odd lines of the display layer alternate in time between lines of a first image and lines of a second image while even lines of the display layer alternate between lines of the second image and lines of the first image. The first and second images may be discriminated by viewers using polarized glasses.

Abstract: There is provided a polarized display, comprising: an intensity modulating matrix display having a front surface; and a polarizing matrix display panel in front of said intensity modulating matrix display, the polarizing matrix display panel having a front surface; wherein the display is one of: a linear polarization display, each pixel of the polarizing matrix display panel being controllable and a rotation of a generated polarized light being varied over a range including 90 degrees and below; and: an elliptical polarization display, each pixel of the polarizing matrix display panel being controllable and a phase between a fast and a slow axes of a polarized light coming from a corresponding pixel of the intensity modulating matrix display in a range including 180 degrees and below.