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Near-eye light field display: Difference between revisions

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[[File:NVIDIA_Near-Eye_Light_Field_Display_Prototype_2013.jpg|thumb|Figure 1. NVIDIA's 2013 near-eye light field display prototype, demonstrating a thin form factor using microlens arrays over OLED microdisplays. (Image based on description, similar to Figure 2 in original article 1)]]
[[File:NE-LF prototype.png|thumb|Figure 1. NVIDIA's 2013 near-eye light field display prototype, demonstrating a thin form factor using microlens arrays over OLED microdisplays.]]
[[File:Light_Field_Stereoscope_Prototype_2015.jpg|thumb|Figure 2. The Stanford/NVIDIA Light Field Stereoscope prototype (2015) used stacked LCDs to provide focus cues. (Image based on description, similar to Figure 3 in original article 1)]]
[[File:Lightfield stereoscope.jpg|thumb|Figure 2. The Stanford/NVIDIA Light Field Stereoscope prototype (2015) used stacked LCDs to provide focus cues. (Image based on description, similar to Figure 3 in original article 1)]]


A '''Near-eye lightfield display''' (NELFD) is a type of [[Near-eye display]] (NED), often implemented in a [[Head-mounted display]] (HMD), designed to reproduce a [[lightfield]]—the complete set of light rays filling a region of space—rather than just a single flat [[image]] for the viewer. The concept of the light field, representing light rays at every point traveling in every direction (often described as a 4D function), emerged in computer graphics and vision research in the 1990s.<ref name="LightFieldForum2013">[Refocus your Eyes: Nvidia presents Near-Eye Light Field Display Prototype | LightField Forum](http://lightfield-forum.com/2013/07/refocus-your-eyes-nvidia-presents-near-eye-light-field-display-prototype/)</ref> Unlike conventional displays which typically emit light [[Isotropy|isotropically]] from each pixel location on a fixed plane, a light field display aims to "support the control of tightly-clustered bundles of light rays, modulating radiance as a function of position and direction across its surface."<ref name="Lanman2013">Lanman, D., & Luebke, D. (2013). Near-eye light field displays. ''ACM Transactions on Graphics (TOG)'', 32(4), Article 138. Presented at SIGGRAPH 2013. [https://research.nvidia.com/sites/default/files/pubs/2013-11_Near-Eye-Light-Field/NVIDIA-NELD.pdf PDF Link]</ref>
A '''Near-eye lightfield display''' (NELFD) is a type of [[Near-eye display]] (NED), often implemented in a [[Head-mounted display]] (HMD), designed to reproduce a [[lightfield]]—the complete set of light rays filling a region of space—rather than just a single flat [[image]] for the viewer. The concept of the light field, representing light rays at every point traveling in every direction (often described as a 4D function), emerged in computer graphics and vision research in the 1990s.<ref name="LightFieldForum2013">[Refocus your Eyes: Nvidia presents Near-Eye Light Field Display Prototype | LightField Forum](http://lightfield-forum.com/2013/07/refocus-your-eyes-nvidia-presents-near-eye-light-field-display-prototype/)</ref> Unlike conventional displays which typically emit light [[Isotropy|isotropically]] from each pixel location on a fixed plane, a light field display aims to "support the control of tightly-clustered bundles of light rays, modulating radiance as a function of position and direction across its surface."<ref name="Lanman2013">Lanman, D., & Luebke, D. (2013). Near-eye light field displays. ''ACM Transactions on Graphics (TOG)'', 32(4), Article 138. Presented at SIGGRAPH 2013. [https://research.nvidia.com/sites/default/files/pubs/2013-11_Near-Eye-Light-Field/NVIDIA-NELD.pdf PDF Link]</ref>
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