In the research of virtual reality equipment, many of the most critical indicators are all about “lookâ€. It seems that the basic performance actually has high requirements. Although we often say that the resolution and refresh rate are critical, but Open parameters, the most basic viewing comfort, and focus, weight, etc., are equally important for the critical performance of eye-catching eyeballs, so Fresnel lenses must be used in virtual devices, and we will introduce Fresnel lenses today. related.
Photo from RoadtoVR
In our previous evaluation articles for Oculus Rift and HTC Vive, both devices used typical Fresnel lenses, and their specifications are actually very similar. And a company that we are going to introduce today: Wearality is very professional in Fresnel lenses, or at least looks professional. Two years ago they had raised a lens claiming a field of view of 150°. Compared to the above two devices, the field of view is only 110°.
HTC Vive's Fresnel lens
The Fresnel lens of Oculus Rift
PlayStation VR
Recently, Frank He, the editor from RoadtoVR, got a very special Fresnel lens through the Wearality CTO David A.Smith. The latter said that the lens is still improving and is still in the prototype stage, but the emphasis is on even if Other Fresnel lenses that have already been put into use are directly compared. It can also be seen that this lens is too thin, and even a quarter of the thickness of the current Fresnel lens is thinner than lying coins.
The most obvious advantages of the thinner Fresnel lens are shown in the photo, but David A. Smith said that the biggest advantage of this lightweight lens with feathers is that it allows the virtual reality head to be much smaller in size than the current head. It is willing to save much more space in the internal structure. So if this lens If you can achieve mass production and become the mainstream device of choice, Oculus Rift 2 or HTC Vive 2 will be much smaller in size and size, and more importantly, behave and habitually use virtual reality outdoors or on the road. The headshot may slowly become less strange entertainment.
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