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crwdns2933797:0Jeff Suovanencrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Jeff Suovanen

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-[* black] Where prior Oculus Rift kits shipped with interchangeable circular lenses (left), the CV1 uses a single set of non-removable asymmetric lenses (right).
-[* black] In a closeup of the CV1 lens, these concentric rings are a telltale sign of [https://en.wikipedia.org/wiki/Fresnel_lens|Fresnel lenses|new_window=true]. This clever manufacturing technique throws out the thick bulging curved plastic lens and replaces it with a thin array of concentric prisms that essentially do the same job.
- [* icon_note] The Fresnel lens has the same large aperture and short focal length, in a fraction of the weight, which is exactly what VR needs, a lens that can function strapped inches from your face and light enough to be supported by your poor neck muscles.
-[* black] Bonus round: by varying the size and shape of the concentric prisms, Oculus was able to fine-tune the lens for this specific application, minimizing spherical aberrations, or distortions, that may result from a traditional curved lens. This probably explains the asymmetrical shape.
+[* black] Where prior Oculus Rift kits shipped with interchangeable circular lenses (left), the CV1 uses a single set of non-removable, asymmetric lenses (right).
+[* black] A closeup of the CV1 lens reveals these concentric rings, a telltale sign of [https://en.wikipedia.org/wiki/Fresnel_lens|Fresnel lenses|new_window=true]. These cleverly manufactured lenses do the same job as the thick, bulging, curved plastic lenses seen in prior Rifts—using thin arrays of concentric prisms that ''weigh'' far less.
+ [* icon_note] The Fresnel lens yields the same large aperture and short focal length, but with a fraction of the material—which is exactly what VR needs. It all has to go into a brick-sized device you can strap to your face for hours, without putting a strain on your poor neck muscles.
+[* black] Bonus round: by varying the size and shape of the concentric prisms, Oculus was able to fine-tune the lens for this specific application, minimizing spherical aberrations (or distortions) that may result from a traditional curved lens. This probably explains the asymmetric shape.