Fresnel lens: Difference between revisions
Created page with "==Introduction== thumb|Figure 1. Collapsing a conventional lens into an equivalent power Fresnel lens. (Image: Davis and Kühnlenz, 2007)..." |
No edit summary |
||
| Line 61: | Line 61: | ||
==Fresnel Lens VR== | ==Fresnel Lens VR== | ||
With the popularization of VR and the commercialization of VR HMDs to the general public, Fresnel lenses have been integrated into some headsets to try to reduce their weight, thickness, and cost. The type of lens used in a VR headset is generally a factor that is overlooked when determining the HDMs’ quality. Virtual reality headset lenses are important to help the viewer focus on the display’s images at close distances. <ref name=”3”></ref> <ref name=”5”>Visbit Inc. A guide to 360º virtual reality: part 2 - headsets. Retrieved from https://medium.com/visbit/a-guide-to-360%C2%BA-virtual-reality-part-2-headsets-5167a0d0870f</ref> | With the popularization of VR and the commercialization of VR HMDs to the general public, Fresnel lenses have been integrated into some headsets to try to reduce their weight, thickness, and cost. The type of lens used in a VR headset is generally a factor that is overlooked when determining the HDMs’ quality. [[Virtual Reality Headset Lenses|Virtual reality headset lenses]] are important to help the viewer focus on the display’s images at close distances. <ref name=”3”></ref> <ref name=”5”>Visbit Inc. A guide to 360º virtual reality: part 2 - headsets. Retrieved from https://medium.com/visbit/a-guide-to-360%C2%BA-virtual-reality-part-2-headsets-5167a0d0870f</ref> | ||
The standard lens used in almost all mobile VR headsets is a singlet. Compared to a Fresnel lens, singlets are thicker, heavier, and curved. High-end headsets like the HTC | The standard lens used in almost all mobile VR headsets is a singlet. Compared to a Fresnel lens, singlets are thicker, heavier, and curved. High-end headsets like the [[HTC Vive]] use Fresnel lenses. The [[Oculus Rift CV1]] has hybrid Fresnel lenses. <ref name=”5”></ref> <ref name=”6”>VR Lens Lab (2016). How lenses for virtual reality headsets work. Retrieved from https://vr-lens-lab.com/lenses-for-virtual-reality-headsets/</ref> | ||
In 2017, Wearality showed a prototype of a new Fresnel lens. The company already had developed a unique Fresnel lens for VR headsets, the Wearality Sky. The new lens is extremely thin and light, even when compared to those used in the high-end VR HMDs. <ref name=”7”>He, F. (2017). New Fresnel lens from Wearality is thinner than a quarter. Retrieved from https://www.roadtovr.com/new-fresnel-lens-wearality-thinner-quarter/</ref> | In 2017, Wearality showed a prototype of a new Fresnel lens. The company already had developed a unique Fresnel lens for VR headsets, the Wearality Sky. The new lens is extremely thin and light, even when compared to those used in the high-end VR HMDs. <ref name=”7”>He, F. (2017). New Fresnel lens from Wearality is thinner than a quarter. Retrieved from https://www.roadtovr.com/new-fresnel-lens-wearality-thinner-quarter/</ref> | ||
