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Structures For Modifying Leaky Mode Light

ID: 2017-031 Structures for redirecting leaky mode light to overcome the issues of bottom exit for flat screen and near-eye architectures

Principal Investigator: Daniel Smalley

This approach makes tiled leaky mode displays possible. Previous work was limited to light exiting the edge rather than the bottom, limiting the architectures to 1D arrays. Now 2D arrays are possible.

The invention includes the creation of laser induced light deflection structures in the interior of leaky mode device to deflect leaky mode light before it translates laterally. This allows the viewer to see the output directly below the interaction region. Normally the viewer would also see scatter from the waveguide but this can be reduced by using a polarizer to eliminate noise or by using a low loss waveguide such as a reverse proton exchange waveguide or a soft proton exchange waveguide.

About the Market:

This technology will be used to make near-eye holographic displays and flat screen holographic displays, and it is fundamental for creating tileable, flatpanel, transparent holographic and near-eye displays. The holographic displays global market is expected to reach over $3.5 billion in annual sales by 2020, and $1.82 bllion by 2021 in Americas (driven mainly by growth of commercial and medical industry).

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