MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202417093618 A) filed by Tampere University Foundation Sr, Tampere, Finland, on Nov. 29, 2024, for 'accommodation invariant near-eye display.'
Inventor(s) include Sahin, Erdem; Akpinar, Ugur; Gotchev, Atanas; and Menon, Rajesh.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "According to an example embodiment, a stereoscopic near-eye display (NED) assembly for a NED device including a pair of NED assemblies is provided, the NED assembly comprising: a two- dimensional (2D) display for rendering an image for viewing by an eye of a viewer, a lens assembly arranged at a predefined 5 distance from the 2D display to allow for viewing the image rendered via the 2D display therethrough, wherein the lens assembly comprises a diffractive optical element (DOE) arranged to provide a phase delay that is different through a plurality of positions of its aperture; and a display controller 10 comprising a preprocessing portion arranged to derive a preprocessed image based on the received image via application of a preprocessing procedure that is arranged to apply a image- area-position dependent preprocessing in derivation of different sub-areas of an image area of the preprocessed image to 15 account for different transmission characteristic through different sub-apertures of the lens aperture of the lens assembly and supply the preprocessed image for rendering via the 2D display, and wherein preprocessing procedure and the lens assembly are arranged for displaying the preprocessed image as one that is 20 perceived as sharp for a plurality of accommodation depths that reside within an extended depth of field (DoF) of the NED assembly when viewed through the lens assembly so as to facilitate providing accommodation invariant 3D presentation based on the preprocessed image via operation of the NED 25 device."
The patent application was internationally filed on Apr. 23, 2024, under International application No.PCT/EP2024/061114.
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