Changes

Traditional HMDs only provide a single display plane; without a proper focus cue, the display decouples accommodations from the vergence of the eyes. Since there is a mismatch, the observer has to rely only on the binocular vision to perceive a 3D space. This can lead to visual discomfort, fatique, eye strain, and headaches <ref name=”6”> Stanford Computational Imaging Lab (2015). The Light Field Stereoscope - SIGGGRAPH 2015 [Video]. Retrieved from https://www.youtube.com/watch?v=YJdMPUF8cDM</ref>.

Traditional HMDs only provide a single display plane; without a proper focus cue, the display decouples accommodations from the vergence of the eyes. Since there is a mismatch, the observer has to rely only on the binocular vision to perceive a 3D space. This can lead to visual discomfort, fatique, eye strain, and headaches <ref name=”6”> Stanford Computational Imaging Lab (2015). The Light Field Stereoscope - SIGGGRAPH 2015 [Video]. Retrieved from https://www.youtube.com/watch?v=YJdMPUF8cDM</ref>.

There have been demonstrations that light field displays allow for small form factors of NEDs. This was made by placing a microlens array on a small screen close to the eye. In near-eye light field displays the image created appears to be floating outside the physical gadget enclose, and the observer can accommodate with a narrow range. However, the lens used in the studies have a tradeoff between achieved spatial resolution and the supported depth range <ref name=”2”></ref><ref name=”7”> Huang, Fu-Chung, Chen, K. and Wetzstein, G. (2015). The Light Field Stereoscope: Immersive Computer Graphics via Factored Near-Eye Light Field Displays with Focus Cues. ACM Transactions on Graphics, 34(4)</ref>. Another technique used to implement light field displays is to stack liquid crystal displays (LCDs). In this case, the image formation is multiplicative, allowing for correct or nearly-correct focus cues to be supported over larger depth ranges. Alternatively, it reduces the number of required display planes <ref name=”7”></ref>.

There have been demonstrations that light field displays allow for small form factors of NEDs. This was made by placing a [[microlens array]] on a small screen close to the eye. In near-eye light field displays the image created appears to be floating outside the physical gadget enclose, and the observer can accommodate with a narrow range. However, the lens used in the studies have a tradeoff between achieved spatial resolution and the supported depth range <ref name=”2”></ref><ref name=”7”> Huang, Fu-Chung, Chen, K. and Wetzstein, G. (2015). The Light Field Stereoscope: Immersive Computer Graphics via Factored Near-Eye Light Field Displays with Focus Cues. ACM Transactions on Graphics, 34(4)</ref>. Another technique used to implement light field displays is to stack liquid crystal displays (LCDs). In this case, the image formation is multiplicative, allowing for correct or nearly-correct focus cues to be supported over larger depth ranges. Alternatively, it reduces the number of required display planes <ref name=”7”></ref>.

It is essential to have a visually comfortable experience, such as obliterating the [[vergence-accommodation conflict]] that occurs in flat-focus headsets such as the [[Meta Quest 3S]]. The improvement of light field displays is a path to the creation of better and more visually comfortable headsets <ref name=”2”></ref><ref name=”7”></ref><ref name=”8”> Huang, Fu-Chung, Chen, K. and Wetzstein, G. (2015). The Light Field Stereoscope | SIGGRAPH 2015. Retrieved from http://www.computationalimaging.org/publications/the-light-field-stereoscope/</ref>.

It is essential to have a visually comfortable experience, such as obliterating the [[vergence-accommodation conflict]] that occurs in flat-focus headsets such as the [[Meta Quest 3S]]. The improvement of light field displays is a path to the creation of better and more visually comfortable headsets <ref name=”2”></ref><ref name=”7”></ref><ref name=”8”> Huang, Fu-Chung, Chen, K. and Wetzstein, G. (2015). The Light Field Stereoscope | SIGGRAPH 2015. Retrieved from http://www.computationalimaging.org/publications/the-light-field-stereoscope/</ref>.