The yuan universe killer is coming! Xiao Zha offered 4 VR head displays to challenge the visual Turing test

Author La Yan Good trapped   As you wish

Source: Xinzhiyuan

【 Reading guide 】 In the meta universe , If technology can't keep up , Everything else is nonsense . see , With a small tie 4 Here comes the head display model .

When Xiao Zha pulls it out with one breath 4 platform VR Model machine , We knew , He really played .

If it was a gimmick to do metauniverse before , Let's take these as a small bundle 「 Hard currency 」 Take it out ...

We only have to worship .

‍‍ From Zha's smile , Should be full of confidence .

Visual Turing test ： Four challenges , One by one

distance Meta It has been almost a year since I changed my name , However, the vision of the meta universe is still on the horizon .

A large part of the reason is ,VR The core of the head display —— Monitor , It is too primitive .

In the past decade , This little thing has made little progress ： Two screens with low resolution are connected behind the lens , Trying to deceive the eyes into seeing a 3D The world of .

obviously , We need more new monitors , The kind that can rival human vision .

however , Exploring the next generation VR Before head display , We also need to know a new word ——「 Visual Turing test 」.

Although the name looks very new , But actually with Alan · Turing in 1950 The Turing test proposed in did not differ much , Just switch to the visual field .

That is, to evaluate VR Is the picture displayed in the device 「 A glance at Ding Zhen 」（ Whether it can be distinguished from the content of the real world ）.

say concretely ,VR The equipment must meet the following four characteristics to pass the test ：

1. Achieve a resolution equivalent to retinal vision

2. It can focus virtual objects naturally

To be specific , The user can freely switch the focus of the object at any distance in the screen , And produce corresponding depth of field effect at the same time .

3. It can compensate the optical distortion caused by the lens

4. Support HDR, That is, it covers a wider range of colors and supports higher contrast

Butterscotch： Compelling clarity , Everyone has eyesight 1.0

The first thing to show up is Butterscotch Model of .

This kind of head show cow is in , Its imaging quality is close to that of retina （near-retina-quality）. High end head displays of this quality are generally available only in Varjo This focus VR The equipment company made it .

One more sentence Varjo, This is a Finnish company , By former Nokia and Microsoft executives in 2016 Founded in . The biggest feature of this company , High definition —— Like a beauty's eye .

however ,Varjo That's ok ,Meta Not now . You could even say ,Meta leave 「 That's ok 」 Not even close , Far away, far away .

Want to achieve this design , Equivalent to the need to Meta Quest 2 Of 110 Halve your view . But it will also Quest 2 Head shows each eye 1832×1920 Pixel sharpness amplification 2.5 times , Improve the wearer's eyesight to 1.0.

Xiaozha ,Butterscotch In every field of view （field-of-view degree） About 55 Pixels . Than the retina 60 Pixels lower , Than Varjo Of 64 The pixels are also a little lower .

Half Dome： Alias 「 Flexible zoom 」

Next on the stage Half Dome Is another long-term prototype .

The highlight of this head display is that the focal plane can be moved according to the user's implementation . These zoom optics are used in 2017 The beginning of the year was a heavy mechanical system , Later, the liquid crystal lens series was used .

According to the Meta Internal research , This technology can create an illusion of depth in the virtual world that can confuse the false with the real .

stay Half Dome In the series ,Meta First, a zoom design is explored , The design uses a mechanically moving display to change the distance between the display and the lens , This changes the depth of focus of the image .

And after that , The team turned to solid-state electronic systems , Thus, the zoom optical system becomes more compact and reliable .

Starburst： Light up the night ,20000nit Big killer

Starburst This kind of VR The implementation of head display is more difficult , Even more than mentioned above Butterscotch Much larger . however , The harder it is to land , Better performance .

The design of this head mounted display is slightly bulky , Even heavy enough to require a handle to support its weight . meanwhile , It is equipped with a powerful lamp , Can provide about 20000nit Bright HDR light .

The brightness of the screen is expressed in nit In units of . modern HDR Television can reach thousands of nits , however Quest 2 Reached only 100 Nita, .

Xiaozha , This product is hardly practical , Our first generation products certainly can't make this . We use it as an experimental bed , It can be used for later research and learning .

What we do this for , Just to find the right way . See which technology paths can really help us make meaningful progress in the field of virtual reality .

Holocake 2：VR「 Thin and light 」 Paragraph header

and Holocake2 The direction of this product is completely different .

Compared with Starburst The depth of ,Holocake The purpose of this paper is to put VR Head appears light 、 Make thin .

After all , All call 「cake」 了 , It's too thick. It's so greasy .

This headset is 2020 The next generation of a device based on holographic optical technology designed in . Holographic optics can bend light , In this way, a flat plate can be used to replace the thick refractive lens .

The finished product may be as thick as ordinary sunglasses . However Meta Still studying , How can we develop an independent light source to power the lens . Almost certainly , You have to use a laser , Instead of using the usual OLED.

Xiaozha ,「 We will do a lot of engineering to achieve practical lasers , Meet our specifications . Of course, security must be ensured 、 Low cost 、 high efficiency 、 It is just big enough to fit VR Head showing inside .」

But to be honest , Now the laser is really difficult to do .

In order to be light enough at this stage ,Meta Adopted Pancake The lens , In this way, the distance between the display and the lens can be significantly shortened （ In the middle of the picture below ）.

After all , Compared with the eight character holographic lens that has not been skimmed , use Pancake Structural Cambria VR The head display is almost on the market .

A comparison of the three lenses

Holocake 2 It's a fully functional PC VR Head gear , In view 、 The resolution and eye frame can be compared with Meta Quest 2 Comparable , And it's thinner .

The difference is ,Holocake 2 A wired connection is required , And there is no integrated computing unit and cooling device .

This is probably the price of frivolity .

Mirror Lake：Meta The ultimate killer mace of

At the end of the day , These prototypes are just for a single test .

and Meta Ultimate goal , Is to achieve a variety of visual Turing test （Visual Turing test） Visual elements required , Integrated into a lightweight 、 Ultra thin and low power consumption VR In the head .

So , The team designed a product called 「Mirror Lake」 The prototype of the , Based on the previous mention 「Holocake 2」 The architecture of , And through the holographic lens to achieve this 「 Similar to the shape of ski goggles 」.

meanwhile , It will also be integrated into Meta in the past 7 All the advanced visual technologies of the year , For example, eye tracking 、 Variable focus, etc . Besides ,「Mirror Lake」 Additional support for lens accessories .

It is said that 「Mirror Lake」 New penetration technologies and external displays are also available , It can show the user's eyes and face to the outside world .

「Mirror Lake」 The key to design is , Holographic projection technology makes each component thin and flat . Not only is the zoom technology quite flat , be used for 「Holocake」 All holograms of 、 Distortion correction and eye tracking are the same . This means that the final product can accommodate more functions , At the same time, it has a smaller body than any existing head mounted device .

Meta The chief scientist of the reality laboratory department Michael Abrash Express ：「Mirror Lake It shows what a complete next generation display system looks like .」

On the blackboard ！

Chief scientist Michael emphasize ,「Mirror Lake」 It is still just a concept machine , And Meta A fully functional headgear has not yet been made , To prove that this architecture is indeed feasible . If this kind of headworn device can be successfully manufactured in the future , Will be VR Visual experience brings revolutionary changes .

In all VR In the prototype ,「Mirror Lake」 It is still the furthest from commercialization , So if other display technologies prove more promising , It may be abandoned , Support other display technologies instead .

The whole point is really ？

I still remember the one Xiao Za tried on some time ago 「 Mosaic 」 Equipment ？

In the video , Little bundle 「 The breath is fragrant 」、「 With a wave of your little hand 」, It's really blowing the air of immortality 、 And cast magic , Whew , A colorful elf jumped into our eyes .

And Xiao Zha was also giggling all the way .

In recent days, ,Lynch In his Patreon On the page 8 One seems to be Project Cambria Of the schematic diagram CAD file .

It shows some interesting features , Including the front dial （ May be used to adjust the lens ） Side clip （ May be used for Oculus Link） And visible cables at the back , It is possible to connect the battery to the front components .

however , unfortunately , This 「 Shy beauty 」Project Cambria There is still no product name 、 Specific release window or exact price .

But Zuckerberg once said ,Project Cambria Will be in 「 Later this year 」 Introduction .

Although we still need to wait 「 Beauty 」 appearance , But at least compared with those prototypes that have no future , This kind of VR It is estimated that the head display will start soon （ Without considering the price ）.

Reference material ：

https://mixed-news.com/en/next-gen-vr-meta-shows-its-latest-headset-protoypes/

This article is only for academic sharing , If there is any infringement , Please contact to delete .

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