<s>
Microsoft	B-Algorithm
HoloLens	I-Algorithm
2	I-Algorithm
is	O
an	O
augmented	B-General_Concept
reality	I-General_Concept
(	O
AR	B-General_Concept
)	O
headset	O
developed	O
and	O
manufactured	O
by	O
Microsoft	O
.	O
</s>
<s>
It	O
is	O
the	O
successor	O
to	O
the	O
original	O
Microsoft	B-General_Concept
HoloLens	I-General_Concept
.	O
</s>
<s>
The	O
first	O
variant	O
of	O
the	O
device	O
,	O
The	O
HoloLens	B-Algorithm
2	I-Algorithm
enterprise	O
edition	O
,	O
debuted	O
on	O
February	O
24	O
,	O
2019	O
.	O
</s>
<s>
The	O
HoloLens	B-Algorithm
2	I-Algorithm
was	O
subsequently	O
released	O
in	O
limited	O
numbers	O
on	O
November	O
7	O
,	O
2019	O
.	O
</s>
<s>
The	O
HoloLens	B-Algorithm
2	I-Algorithm
was	O
announced	O
by	O
lead	O
HoloLens	B-General_Concept
developer	O
Alex	O
Kipman	O
on	O
February24	O
,	O
2019	O
at	O
Mobile	O
World	O
Congress	O
(	O
MWC	O
)	O
in	O
Barcelona	O
,	O
Spain	O
.	O
</s>
<s>
On	O
May7	O
,	O
2019	O
the	O
HoloLens	B-Algorithm
2	I-Algorithm
was	O
shown	O
again	O
at	O
the	O
Microsoft	B-Application
Build	I-Application
developer	O
conference	O
.	O
</s>
<s>
There	O
,	O
it	O
showcased	O
an	O
application	O
created	O
with	O
the	O
Unreal	B-Operating_System
Game	I-Operating_System
Engine	I-Operating_System
.	O
</s>
<s>
The	O
HoloLens	B-Algorithm
2	I-Algorithm
are	O
combination	O
waveguide	O
and	O
laser-based	O
stereoscopic	B-Algorithm
&	O
full-color	O
mixed	B-General_Concept
reality	I-General_Concept
smartglasses	B-General_Concept
developed	O
and	O
manufactured	O
by	O
Microsoft	O
.	O
</s>
<s>
The	O
US	O
military	O
's	O
Integrated	O
Visual	O
Augmentation	O
System	O
is	O
a	O
further	O
development	O
of	O
Hololens	B-Algorithm
2	I-Algorithm
.	O
</s>
<s>
The	O
HoloLens	B-Algorithm
2	I-Algorithm
is	O
an	O
early	O
AR	B-General_Concept
device	O
.	O
</s>
<s>
The	O
displays	O
on	O
the	O
HoloLens	B-Algorithm
2	I-Algorithm
are	O
simple	O
waveguide	O
displays	O
with	O
a	O
fixed	O
focus	O
of	O
approximately	O
two	O
meters	O
.	O
</s>
<s>
On	O
August	O
20	O
,	O
2019	O
,	O
at	O
the	O
Hot	O
Chips	O
31	O
symposium	O
Microsoft	O
presented	O
their	O
Holographic	O
Processing	O
Unit	O
(	O
HPU	O
)	O
2.0	O
custom	O
design	O
for	O
the	O
HoloLens	B-Algorithm
2	I-Algorithm
with	O
the	O
following	O
features	O
:	O
</s>
<s>
On	O
August	O
29	O
,	O
2019	O
,	O
at	O
the	O
World	O
Artificial	O
Intelligence	O
Conference	O
in	O
Shanghai	O
,	O
Microsoft	O
's	O
Executive	O
Vice	O
President	O
,	O
Harry	O
Shum	O
,	O
revealed	O
that	O
HoloLens	B-Algorithm
2	I-Algorithm
would	O
go	O
on	O
sale	O
in	O
September	O
2019	O
.	O
</s>
<s>
HoloLens	B-Algorithm
2	I-Algorithm
has	O
a	O
diagonal	O
field	O
of	O
view	O
of	O
52	O
degrees	O
,	O
improving	O
over	O
the	O
34	O
degree	O
field	O
of	O
view	O
(	O
FOV	O
)	O
of	O
the	O
first	O
edition	O
of	O
HoloLens	B-General_Concept
,	O
although	O
Karl	O
Guttag	O
states	O
that	O
it	O
offers	O
less	O
than	O
20	O
pixels	O
per	O
degree	O
of	O
resolution	O
(	O
despite	O
Microsoft	O
's	O
claim	O
that	O
it	O
would	O
keep	O
a	O
resolution	O
of	O
47	O
pixels	O
per	O
degree	O
)	O
.	O
</s>
<s>
The	O
HoloLens	B-Algorithm
2	I-Algorithm
Emulator	B-Application
was	O
made	O
available	O
to	O
developers	O
on	O
April	O
17	O
,	O
2019	O
.	O
</s>
<s>
This	O
emulator	B-Application
allows	O
developers	O
to	O
create	O
applications	O
for	O
the	O
HoloLens	B-Algorithm
2	I-Algorithm
before	O
the	O
device	O
ships	O
.	O
</s>
