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Holographic display

a technology of holographic display and projection image, applied in the field of holographic display, can solve the problems of poor usability and difficulty in interaction with multiple focal planes of a projected imag

Inactive Publication Date: 2019-05-23
REAL VIEW IMAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a technology that enhances the contrast of holograms by using a transparent liquid crystal display to block light from the viewer's eye. The display is designed to reduce the intensity of light within a specific area, creating a more vivid hologram image. Additionally, an apodization filter is used to achieve a 50% reduction of light intensity within a certain distance from the filter's edges. This results in a more visually appealing hologram display.

Problems solved by technology

However, binocular disparity is unsuitable for displaying images at close range to a viewer, such as less than 2 meters, where variations in focal planes / depth resolution are easily recognized by the viewer and will result in poor usability and difficulties in interaction with multiple focal planes of a projected image.

Method used

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Examples

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Embodiment Construction

[0279]The present invention, in some embodiments thereof, relates to a display for projecting a Computer Generated Hologram (CGH) image to a viewer via an optical element close to the viewer's eye or eyes, such that the CGH image appears to the viewer as beyond the optical element, and more specifically, in some embodiments the optical element may be at least semi-transparent, so that the viewer may see the real world simultaneously with seeing the CGH image.

[0280]The present invention, in some embodiments thereof, relates to a head mounted display (HMD), and to methods of using one or more head mounted displays to display holographic images to one or more viewers.

[0281]In some embodiments, the present invention may include a semi-transparent display which allows in a view of the real world, optionally enabling an augmented reality view of both the real world and computer-generated images displayed by the display. A degree of transparency of the display in front of a viewer's eye(s)...

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Abstract

A method of displaying a Computer Generated Holographic (CGH) image by a display, including setting pixel values of a Spatial Light Modulator (SLM) included in a Head Mounted Display (HMD), producing a interference based holographic image at a first location by projecting coherent light onto the SLM, and re-imaging the holographic image from the first location to form a holographic image in front of an eye of a viewer wearing the HMD. Related apparatus and methods are also described.

Description

RELATED APPLICATIONS[0001]This application claims priority of U.S. Provisional Patent Application No. 62 / 410,494 filed on 20 Oct. 2016, of U.S. Provisional Patent Application No. 62 / 298,070 filed on 22 Feb. 2016 and of U.S. Provisional Patent Application No. 62 / 298,036 filed on 22 Feb. 2016, the contents of which are incorporated herein by reference in their entirety.FIELD AND BACKGROUND OF THE INVENTION[0002]The present invention, in some embodiments thereof, relates to a display for projecting a Computer Generated Hologram (CGH) image to a viewer via an optical element close to the viewer's eye or eyes, such that the CGH image appears to the viewer as beyond the optical element, and more specifically, in some embodiments the optical element may be at least semi-transparent, so that the viewer may see the real world simultaneously with seeing the CGH image.[0003]The present invention, in some embodiments thereof, relates to a Head Mounted Display (HMD), and to methods of using one ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02B27/01G03H1/22G06T15/00G06F3/01
CPCG02B27/0172G02B27/0179G03H1/2294G03H1/2205G03H1/2249G06T15/005G06F3/013G02B2027/0174G02B2027/0187G03H2001/2284G03H2223/24G03H2223/18G03H2223/12G02B2027/0178G06T2200/04G03H2001/2236G03H2226/05G03H2227/02G03H2270/55G02B27/0103G02B2027/0134G02B2027/0138G02B2027/014G02B27/0093
Inventor GELMAN, SHAUL ALEXANDERROTSCHILD, CARMELALON-BRAITBART, SHLOMOKAUFMAN, AVIAD
Owner REAL VIEW IMAGING
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