Microsoft’s future Surface Pen will harvest its power from PC’s display

Surface Pen
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Microsoft introduced the Surface Pen in 2012, and it works with
the company’s Windows devices. Microsoft also bundles the Pen
with some Surface Pro devices. The Surface Pen is
an active stylus and digital pen for Surface
devices, and it appears that Microsoft is working on an
upgraded version of the stylus with improved technology.

Microsoft is exploring new ideas for the next generation
Surface Pen, and the company recently patented a new technology
for the stylus. The patented pen that would never need
recharging as it will automatically harvest power from the

Microsoft’s new Pen would actually use solar cells, and while
it’s not innovative, it’s a very clever idea and the
implementation is futuristic. It’ll basically collect the light
generated by the display of the connected device. The energy is
generated by the display and the energy is
transferred through the solar cells that would recharge
the Surface Pen’s battery.

The Surface Pen would incorporate the technology solar cells
that are inside the stylus. It’ll never run out of power
as long as the laptop is charged.

“The stylus collects light during interaction with the
touchscreen, while the stylus is in close proximity to the
touchscreen. Due to the close proximity of the stylus to the
touchscreen during harvesting, the intensity of light that is
collected from the electronic display is significantly higher
than intensity from ambient lighting in a room or from outdoor
lighting”, the patent application explains the technology.

It appears that the light of the screen is enough and better
approach than the natural light to recharge the batteries of
the Surface Pen. Microsoft plans to install the solar cells
inside the body of the pen, so the look of the Surface Pen
would be more or less the same.

The Surface Pen with solar cells would look as good as the
existing models, and it won’t have changes in terms of looks,
that’s yet another plus point of the implementation.

It’s just a patent application, so it does not guarantee that
Microsoft wants to begin production of the device.

The solar-powered Surface Pen is a futuristic approach.
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