Difference between revisions of "Lens array-based light field display"

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Its input is light field data.
 
Its input is light field data.
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The individual lenses are not visible because the array is out of focus.<ref>https://www.youtube.com/watch?v=uwCwtBxZM7g</ref>
  
 
It is possible for microlens-based light-field displays to cause [[VAC]], such as that which can be seen on the product label of a PowerBook G3 Lombard model.
 
It is possible for microlens-based light-field displays to cause [[VAC]], such as that which can be seen on the product label of a PowerBook G3 Lombard model.

Revision as of 13:32, 29 October 2024

A microlens-based light field display is a type of 3D display that uses a microlens array (MLA) to show a light field. It is a type of light field display.

Its underlying display source can be a microdisplay.

A microlens array based light field display is intended to recreate a set of virtual points through which rays of different angles of light pass through in front of the user's eyes. Ideally, a high number of points are generated.

It can be near-eye or far-eye.

Its input is light field data.

The individual lenses are not visible because the array is out of focus.[1]

It is possible for microlens-based light-field displays to cause VAC, such as that which can be seen on the product label of a PowerBook G3 Lombard model.

Examples

FoVI3D developed these.[2] FoVI3D made displays that tiled underlying flat microdisplays.[2]

Doug Lanman developed a near-eye display with microlenses at NVIDIA. This was the Nvidia near-eye lightfield display project.

Construction

A microlens-based light field display is based on an underlying 2D flat panel display. There is a grid of microlenses on top of the display.

Each microlens has multiple pixels underneath it. Each pixel generates a ray that has a unique origin and angle when it comes out of a microlens.[2]

Two lenticular sheets with the lenticular pattern perpendicular to each other can be used to emulate a microlens array.[3]

The spatial resolution of a simultaneous light field display is proportional to the ratio of the microlens focal length to the distance of the display from the eye.[4]

An optical element to block the cross talk from one microlens to the next is called a baffle.[2]

References

  1. ↑ https://www.youtube.com/watch?v=uwCwtBxZM7g
  2. ↑ Jump up to: 2.0 2.1 2.2 2.3 "Error: no |title= specified when using {{Cite web}}". https://www.arch.tamu.edu/app/uploads/2021/10/FoVI3D_DeepDrive.pdf.
  3. ↑ https://www.jsr.org/hs/index.php/path/article/download/5965/2712/39803
  4. ↑ "Error: no |title= specified when using {{Cite web}}". https://research.nvidia.com/sites/default/files/pubs/2013-11_Near-Eye-Light-Field/NVIDIA-NELD.pdf.
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