Scalable and tileable holographic displays

Number: 9678476
Published: 2017-06-13
Filed: 2016-02-23
Assignee: Disney Enterprises, Inc.
Inventors: Smithwick; Quinn Y.
CPC: G03H1/2205; G03H1/268; G03H1/2294
Verdict: High Hardware
Source: Google Patents · FreePatentsOnline

The keeper's note

A scalable, tileable holographic display system combining holographic and coarse integral displays for full-parallax super-holograms.

Abstract

A holographic display system for generating a super hologram with full parallax in different fields of view in the horizontal and vertical directions. The display system includes assemblies or subsystems each adapted to combine holographic displays and coarse integral displays to produce or display a coarse integral hologram. The display system is adapted to combine such displays or display systems to add more detail or information. For example, the display system can be assembled as if it were made up of “holographic bricks”that can be stacked and combined to provide a unique image/output. Briefly, the display system described herein teaches techniques for combining coarse integral holographic (CIH) displays in a seamless and scalable manner, e.g., a display system where multiple spatial light modulators (SLMs) can be placed or provided behind coarse integral optics.

Background

BRIEF DESCRIPTION OF THE DRAWINGS(1) FIG. 1 illustrates a coarse integral display that uses a single image source and scanning to provide an angularly tiled super hologram;(2) FIG. 2 illustrates a scaled CIH system combining two of the displays of FIG. 1 using a common transform lens so as to provide a super hologram with view gaps;(3) FIG. 3 illustrates a tiled CIH system combining two of the displays of FIG. 2 using two transform lens positioned side-by-side to output super holograms with an image gap;(4) FIG. 4 illustrates relay optics using a lens pair to provide a scanned image;(5) FIG. 5 illustrates relay optics configured in the form ofa periscope relay;(6) FIG. 6 illustrates a periscopic coarse integral array display according to the present description;(7) FIG. 7 illustrates a periscopic scanning relay that may be used within a display system such as that of FIG. 6;(8) FIG. 8 illustrates a scanningperiscopic coarse integral holographic display using the relay of FIG. 7 in combination with the coarse integral array of FIG. 6;(9) FIG. 9 illustrates a display system providing scaling of the scanning periscopic coarse integral holographic display of FIG. 8; and(10) FIG. 10 illustrates a display system providing tiling of the scanning periscopic coarse integral holographic display of FIG. 8.DETAILED DESCRIPTION(11) Briefly, the present description provides a display system that combines holographic displays or holographic display systems (sometimes referred to herein as

Claims

1. A holographic display system, comprising: an array of holographic display devices operable to provide a plurality of holographic images of a scene from differing viewpoints ofthe scene; and a periscopic coarse integral optics assembly positioned between the array of holographic display devices and a viewing space for the holographic display system, wherein the periscopic coarse integral optics assembly includes a periscopic relay for each of the holographic display devices to relay the holographic images and wherein the periscopic coarse integral optics assembly is adapted to combine the plurality of holographic images into a single hologram viewable in a hologram image plane, wherein each of the periscopic relays comprises a field lens adjacent an output surface of a corresponding one of the holographic display devices, and wherein each of the periscopic relay further comprises a relay lens spaced apart from each of the field lenses between the field lens and the hologram image plane of the holographic display system. 7. A coarse integral holographic display, comprising: a scanning relay comprising a spatial light modulator providing elemental holograms of a 3D scene, an array of field lenslets, and a scanner operable to direct each of the elemental holograms onto one of the field lenslets; and a periscopic coarse integral optics assembly positioned between the scanning relay and a viewing space for the holographic display, wherein the periscopic coarse integral optics assembly includes a periscopic relay for each of the field lenslets to relay the elemental holograms and wherein the periscopic coarse integral optics assembly is adapted to combine the plurality of holographic images into a single hologram viewable in a hologram image plane, wherein the periscopiccoarse integral optics assembly further includes a common transform lens between the periscopic relays and the hologram image plane that combines the plurality of holographic images into the single hologram, and wherein the common transform lens has a height equal to aheight of the array of field lenslets in the scanning relay. 13. A coarse integral holographic display, comprising: a scanning relay comprising a spatial light modulator providingelemental holograms of a 3D scene, an array of field lenslets, and a scanner directing each of the elemental holograms onto one of the field lenslets; and a periscopic coarse integral optics assembly between the scanning relay and a viewing space for the holographic display, wherein the periscopic coarse integral optics assembly includes a periscopic relay for each of the field lenslets, wherein the periscopic coarse integral optics assembly combines the holographic images into a super hologram viewable in a hologram image plane, andwherein each of the periscopic relays comprises a field lens adjacent an output surface of a corresponding one of the field lenslets of the scanning relay and further comprises a relay lens spaced apart from each of the field lenses of the periscopic relay between the array of field lenslets and the hologram image plane.