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Article title: Oculus Research Center releases new optical components to suppress vertigo

Release time:2018-03-20

The Oculus research department is Oculus, the VR company that produces Rift device research and development department. It announces a new "pioneering" display, which can alleviate the impact of VR on our eyes. The company calls it "focus surface display", which can eliminate the "detained time" phenomenon of early feedback by VR fans after extensive use.

The biggest problem stems from the fact that your eyes actually do not see three-dimensional objects, but flat surfaces. It uses a simple technology to stimulate the brain to see 3D objects. This technique allows the brain to feel pressure to cause nausea, headache and fatigue and other symptoms, and therefore have a visual convergence regulation conflict "(conflict Vergenceaccommodation) the term.

The official name of this phenomenon is the so-called "visual convergence regulation conflict". It sounds complicated, but it's very simple. The term Vergence is used to describe the phenomenon of eye focusing when you observe objects nearby. Accommodation means that your lens allows your eyes to focus light on objects at different distances. Our eyes and brains are well trained and we can work at the same time.

Here, the focus is on the horrible face, which is shown far away to make it easier for each eye to make up for the polymerization.

Now, in modern VR glasses, the aggregation simulation is performed by displaying discrete images to each eye. In order to further move the focus, the close objects that are observed by each eye are set farther than the distant objects. On the contrary, when the focus of the viewer is farther, the distance between objects is also opposite. Take off your 3D glasses in the movie and you'll understand what I mean.

But because the screen is at a certain distance, the lens will not be adjusted in the real world. This leads to a difference in muscle memory, resulting in a sense of fatigue. We are not "well trained" to learn to respond to a world without a regulatory function.

An exciting solution to this problem is to use holograms to project 3D objects, but as the Oculus researchers pointed out, the existing technology is impossible. They put forward a middle position between the plane display and the 3D hologram.

The focus surface display gets the depth information from the image and changes the focus of the different parts of the image - a bit like a stereoscopic book. It basically brings closer objects closer to your eyes on the flat screen, which means that your eyes must be adapted to see them clearly, much more like the real world.

Of course, technology also has some hindrance, mainly because it requires advanced eye tracking technology and narrow vision, and requires developers to add information about depth of objects in scenes.

However, it is exciting that the VR research is making progress, making it easier for the eyes and the brain to experience the experience. Oculus will introduce their work at the SIGGRAPH meeting in July.