|Product family||Windows 10|
|Type||Mixed reality augmented reality head-mounted display smartglasses|
|Release date||November 7, 2019|
|Availability||Enterprise and developers|
|Introductory price||$3500 USD, $125 USD per month Enterprise, $99 USD per month Developer|
|Operating system||Windows 10 Holographic|
|System on a chip||Qualcomm Snapdragon 850 Compute Platform|
|CPU||Qualcomm Snapdragon 850|
|Display||See-through holographic lenses 2K 3:2, 1440x936|
|Input||Eye tracking, spatial tracking, hand tracking.|
|Camera||8 MP 1080P30 video|
|Connectivity||Bluetooth LE 5.0, 802.11 2x2 WiFi|
|Platform||Universal Windows Platform|
|Online services||Windows Holographic Operating System, Edge, Dynamics 365 Remote Assist, Dynamics 365 Layout, Dynamics 365 Guides, 3D Viewer, OneDrive for Business|
Microsoft HoloLens 2 is an augmented reality (AR) headset developed and manufactured by Microsoft. It is the successor to the original Microsoft HoloLens. The first variant of the device, The HoloLens 2 enterprise edition, debuted on February 24, 2019. This was followed by a developer edition that was announced on May 2, 2019. The HoloLens 2 was subsequently released in limited numbers on November 7, 2019.
The HoloLens 2 was announced by lead HoloLens developer Alex Kipman on February 24, 2019 at Mobile World Congress (MWC) in Barcelona, Spain. On May 7, 2019 the HoloLens 2 was shown again at the Microsoft Build developer conference. There, it showcased an application created with the Unreal Game Engine.
The HoloLens 2 are combination waveguide and laser-based stereoscopic & full-color mixed reality smartglasses developed and manufactured jointly by Microsoft and MicroVision, Inc. in Redmond, Washington. It is the direct model successor to the pioneering Microsoft HoloLens and the technical successor to the MicroVision stereoscopic and monochromatic laser-based virtual retinal display (VRD) & helmet mounted display (HMD) prototype-in-the-running for the canceled RAH-66 Comanche stealth helicopter  and the now-defunct monoscopic and monochromatic MicroVision Nomad Augmented Vision System. On February 24, 2019 the HoloLens 2 enterprise edition debuted as the first variant of the device, followed by a developer edition that was announced on May 2, 2019. It was subsequently released in limited numbers on November 7, 2019. The US military's Integrated Visual Augmentation System is a further development of Hololens 2.
The HoloLens 2 is an early AR device. The displays on the HoloLens 2 are simple waveguide displays with a fixed focus of approximately two meters. Because of the fixed focus, the displays exhibit the Vergence-Accommodation Conflict, which is an unpleasant visual sensation for the viewer.
- 7x SIMD Fixed Point (SFP) for 2D processing
- 6x Floating Vector Processor (FVP) for 3D processing
- >1 TOP of programmable compute
- 125Mb SRAM
- 79mm2 die size and 2 billion transistors
- TSMC 16FF+ process
- PCIe 2.0 x1 at 100 MB/s bandwidth to Snapdragon 850
On August 29, 2019, at the World Artificial Intelligence Conference in Shanghai, Microsoft's Executive Vice President, Harry Shum, revealed that HoloLens 2 would go on sale in September 2019. The product started shipping on November 7, 2019.
Improvements over the previous model
HoloLens 2 has a diagonal field of view of 52 degrees, improving over the 34 degree field of view (FOV) of the first edition of HoloLens, although Karl Guttag states that it offers less than 20 pixels per degree of resolution (despite Microsoft's claim that it would keep a resolution of 47 pixels per degree).
Holographic Processing Unit (HPU) 2.0 improvements compared to the HPU 1.0:
- 1.7x compute
- 2x effective DRAM bandwidth
- Improved hologram stability
- New hardware accelerated workloads such as eye tracking, fully articulated hand tracking, semantic labeling, spatial audio and JBL filter
HoloLens 2 emulation
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- Kipman, Alex (2019-02-25). "No secrets... - The first HoloLens had a 34-degree diagonal FOV; the new headset's field of view … 52-degree diagonal field of view. More than 2x is area and most of the growth is vertical (no longer 16:9)". @akipman. Retrieved 2019-03-01.
- Goode, Lauren (2019-02-24). "The HoloLens 2 Puts a Full-Fledged Computer on Your Face". Wired. ISSN 1059-1028. Retrieved 2019-03-01.
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