Kughn Absolute Holdings, LLC

Absolute Imaging LLC

Hans Ingmar Bjelkhagen

Mark Louis Dell'Eva

James Clement Fischbach

Systems and methods for creating an autostereoscopic display include a holographic optical element (HOE) recorded using coherent light divided into diverging reference and object beams that illuminate the HOE from opposite sides. The object beam passes through first and second diffusers with one diffuser being a directional diffuser to more uniformly illuminate the HOE. Optic elements may be used to more closely match beam diameters and/or profiles of the recording wavelengths. Baffles may be positioned on opposite sides of the HOE with openings aligned proximate the reference beam and object beam paths, respectively, to reduce stray reflections and provide ambient air flow attenuation or damping. One or more edges of the HOE are masked to reduce or prevent stray light from entering and reflecting within the HOE during recording.

System and method for autostereoscopic imaging using holographic optical element

Systems and methods for generating a three-dimensionally perceived image from a stereo endoscope by at least one viewer include an autostereoscopic display having a left projector and a right projector that project corresponding left and right images received from corresponding left and right cameras of the stereo endoscope onto a reflective holographic optical element that redirects light from the left projector to a left viewing zone for a left eye and redirects light from the right projector to a right viewing zone for a right eye of a viewer to create a three-dimensionally perceived image without glasses or optical headgear.

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Dyserth, United Kingdom

Hans Ingmar Bjelkhagen