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798results about How to "Improve viewing angle" patented technology

Angle-adjusting apparatus for a housing of headrest display

An angle-adjusting apparatus for a housing of a headrest display, comprising an external housing having an opening at the outer side thereof, a cavity being formed and two sleeves being symmetrically arranged at both sides thereof, a spring element being provided at a top and a bottom side of the cavities, the spring element having a first projecting rib longitudinally extending at an internal side thereof; an internal housing having a front and a rear portion with an internal room for installing a display, a groove and two positioning sleeves corresponding to the cavities of the external housing being disposed at both sides of the internal housing, the internal housing further having a plurality of second projecting ribs at a position corresponding to the spring element; and a left link element and a right link element formed in a symmetric manner and received within the cavities of the external housing, respectively. Each of the left and right link elements includes an external and internal link portion both of which are locked on the external and internal housings, respectively, for a pivotal connection. And the joining end is limited to the lowest point so that a room is reserved to install the display in the small headrest. Moreover, the contact at both sides includes a plurality of engaging and positioning points to allow for a precise angle-adjustment and to protect from loosening due to the rocking action when driving. Accordingly, an optimal view angle can be achieved.
Owner:HEXA CHAIN

Holographic three-dimensional display method and device based on spatial light modulator

ActiveCN105700320AIn line with observation habitsRealize multi-view full parallax dynamic holographic three-dimensional displayOptical elementsSpatial light modulatorBeam splitter
The invention discloses a holographic three-dimensional display method and a holographic three-dimensional display device based on a spatial light modulator; the display device is composed of a laser light source, a polarization modulation component, a beam splitter prism, a spatial light modulator, a computer, a lens, and a pixel-type nano grating based directional diffraction screen; and the display method comprises the following steps: obtaining a multi-view two-dimensional image of a target object and undergoing preprocessing conversion process to generate a group of image arrays used for phase type hologram calculation; calculating corresponding phase type holograms with an iterative Fourier transform algorithm, loading the holograms to the spatial light modulator, and irradiating the holograms with the laser light source to obtain holographic reproductive images; and designing and manufacturing the pixel-type nano grating based directional diffraction screen, and directionally diffracting corresponding reproductive image pixels to fixed positions to form different viewpoints. The method and the device disclosed by the invention, by combing with fast refreshing and loading of the spatial light modulator for the holograms, realize multi-view full-parallax dynamic holographic three-dimensional reproduction of the target object, and provide a feasible scheme for application of a naked-eye three-dimensional display technology.
Owner:SUZHOU UNIV
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