Shulou(Shulou.com)11/24 Report--

Recently, according to foreign media, researchers from Stanford University and Nvidia have jointly developed a VR head that looks more like ordinary glasses. Although, from the appearance, the two lenses will highlight two circuit strips, but it is lighter and thinner than any other VR on the market.

According to a research paper published in Siggraph 2022, "one of the main obstacles to the wide range of VR technology applications is the large size of existing VR displays and the resulting discomfort."

At present, an important challenge for VR head display to enter the mainstream market is its limitation in shape parameters, and the existing equipment is still quite bulky. This is because the VR head display is generally based on the principle of magnifying glass, and the lens magnifies the image provided by the micro display, so this requires the device to provide a certain distance space to achieve image magnification.

The head display, called "holographic glasses", can provide full-color 3D holograms using optical elements only 2.5mm thick. Compared with the traditional VR headset, this display device uses lenses to magnify a smaller display at a distance from it. Shrinking all the necessary components to such a small size is a huge step forward for VR technology.

The "hologram" prototype uses "pancake lenses", a concept that has been proposed several times in the past few years. Not only can these "pancake lenses" achieve a smaller size, but they also reportedly have other benefits: they are said to provide unlimited resolution, which means you can improve the resolution of the VR head display, and they provide a view angle of up to 200 degrees.

Compared with the current VR head display products on the market, this product has made a great breakthrough in shape and weight. It weighs only 60 grams. By contrast, the lightest VR on the market at present weighs 503g of Meta Quest 2.

However, it is important to point out that this product is currently limited to the research lab, not products that will appear on the market soon. At the same time, it has some limitations: although it has a wider field of view (FOV) space than the current VR head display, the glasses-sized display offers only a 22.8degree field of view, while the test prototype offers only 16.1 degrees. (proofread / Li Xiaoyan)

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