Review: Google Cardboard

Google Cardboard
Pros: Great, affordable way for

beginners to explore virtual

reality. Many different models

are available for purchase.

More apps are becoming

available for the device.

Works on both Android and

iPhones.
Cons: Some apps for it are not so great and will freeze a

mobile device.
BlackEnterprise.com Review: 

You will hear and read a lot about virtual reality in

technology this year. Virtual reality is a computer-

generated three-dimensional image or environment with

which we interact. Facebook-owned 
Oculus VR is set to

launch the Oculus headset and Sony, as well as other tech

companies, are launching VR headsets soon. More VR

content is being made since 360-degree video is becoming

abundant—cameras such as the Nokia OXO can shoot high-

definition 3D video. VR apps, displays, and content will all

be at the forefront of tech coverage this year.
If you are just getting acquainted with virtual reality or

want an affordable way to experience it, then you will want

to know about Google Cardboard. Google sent Black

Enterprise 
a number of Cardboard headsets to try out and

we had a blast doing so in the office. Check out the video at

the end of this article.
How It Works

Google Cardboard is not a new device—it was announced at

Google I/O—Google’s annual conference in 2014. However,

it has received an update since then and there are a lot

more apps available to work with it.
Google Cardboard is made from a piece of cardboard cut

into the shape, somewhat like a ViewMaster toy, and is

comprised of two 45 mm focal length lenses, conductive

lever, a hook and loop fastener (such as Velcro), a rubber

band, and an optional near field communication (NFC) tag.
GoogleCardboard2It works with a smartphone.

Slide your phone into the

Cardboard viewer with the

screen facing the lenses. Open

a Google Cardboard app on

the phone and follow the

setup instruction, put the

viewer to your eyes.

Depending on the app, you control by pushing the magnet

on Google Cardboard or by turning your head—the specific

app instructs you on what to do.
Once the kit is assembled, a smartphone is inserted in the

back of the device and held in place by the selected

fastening device. A Google Cardboard–compatible app splits

the smartphone display image into two, one for each eye,

while also applying barrel distortion to each image to

counter pincushion distortion from the lenses; the result is

a stereoscopic (“3D”) image with a wide field of view.
How to Get It

Google Cardboard is a device you can build using Google’s

free, downloadable template and some additional items you

can find at a hardware store or online. The template gets

traced onto a piece of cardboard. Additional items needed

are two 45 mm focal lenses, magnets, velcro and a rubber

band. You can buy the
magnets online for $1.03 and a pair

of  lenses
 for $1.24.

Google has all of the instruction for assembling the device

available in a PDF file. If you want to skip assembling your

own, there are plenty of pre-made Google Cardboard

headsets. Some of them are even made of sturdier, more

expensive material than cardboard. Pre-made Google

Cardboard
 headsets generally run about $20-$35), though

these fancy viewers from Zeiss, are priced at $120-$129.
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