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Microsoft HoloLens

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Microsoft HoloLens
Basic Info
VR/AR Mixed Reality
Type AR Glasses
Subtype Enterprise AR
Platform Windows Holographic
Developer Microsoft
Manufacturer Microsoft
Announcement Date January 21, 2015
Release Date March 30, 2016
Price $3,000 USD (Development Edition)
Website https://www.microsoft.com/hololens
Successor Microsoft HoloLens 2
System
Chipset Intel Atom x5-Z8100
HPU Microsoft Holographic Processing Unit 1.0
Storage
Storage 64 GB
Memory 2 GB
Display
Display See-through holographic lenses
Resolution 1280x720 per eye (HD)
Refresh Rate 60 Hz
Image
Field of View 35° diagonal (30° H x 17.5° V)
Optics
Ocularity Binocular
Tracking
Tracking 6DoF (inside-out)
Eye Tracking No
Hand Tracking Yes (gestures)
Audio
Audio Integrated spatial speakers
Connectivity
Connectivity Wi-Fi 802.11ac, Bluetooth 4.1 LE
Device
Weight ~579g


The Microsoft HoloLens (commonly HoloLens 1 or HoloLens Development Edition) is the first mixed reality head-mounted display developed by Microsoft, announced on January 21, 2015 and released on March 30, 2016 at $3,000 for the Development Edition. The HoloLens was the first self-contained, holographic computer with no wires, phones, or connection to a PC required, featuring Microsoft's revolutionary Holographic Processing Unit (HPU) capable of over one trillion operations per second. With see-through holographic lenses, gesture recognition, and spatial mapping, the original HoloLens pioneered the mixed reality category and established the foundation for enterprise AR applications.

History and Development

Microsoft unveiled the HoloLens on January 21, 2015 at a Windows 10 event, surprising the tech industry with a fully self-contained mixed reality headset. The Development Edition shipped on March 30, 2016 to developers in the United States and Canada for $3,000. A Commercial Suite was later offered for $5,000, providing enterprise features. The original HoloLens was succeeded by the significantly improved Microsoft HoloLens 2 in 2019.[1]

Design and Hardware

Display

See-through holographic system:

  • Transparent holographic lenses
  • 1280x720 resolution per eye (HD)
  • Over 2.5k light points per radian
  • 60 Hz refresh rate
  • Waveguide-based optics
  • Additive display (holograms on real world)

Field of View

  • ~35° diagonal FOV
  • 30° horizontal
  • 17.5° vertical
  • Primary criticism of original HoloLens
  • Limited hologram viewing area

Processing

Custom computing architecture:

Intel Atom Processor

  • Intel Atom x5-Z8100 (Cherry Trail)
  • 1.04 GHz frequency
  • 64-bit quad-core

Holographic Processing Unit (HPU)

  • Microsoft HPU 1.0—revolutionary custom chip
  • 24 cores
  • >1 trillion operations per second
  • 200x faster than software processing
  • Processes "terabytes of information"
  • Dedicated to spatial computing

Memory

  • 2 GB RAM
  • 64 GB storage

Sensors

Comprehensive spatial awareness:

  • 1 depth camera
  • 4 environment understanding cameras
  • 1 HD video camera (2.4 MP)
  • Mixed reality capture
  • Ambient light sensor
  • 4 microphones
  • IMU (accelerometer, gyroscope, magnetometer)

Tracking

Self-contained inside-out tracking:

  • 6 Degrees of Freedom (6DoF)
  • No external sensors required
  • Spatial mapping of environment
  • Real-time mesh generation
  • Anchor placement

Input Methods

Controller-free interaction:

Gestures

  • Air tap (select)
  • Bloom (go to Start)
  • Gaze targeting
  • Hand gesture recognition

Voice

  • Cortana integration
  • Voice commands
  • Dictation

Build

Self-contained design:

  • ~579g weight
  • All computing integrated
  • No external wires
  • No phone required
  • No PC connection needed
  • Adjustable headband
  • Flip-up visor

Audio

  • Integrated spatial speakers
  • 3D sound positioning
  • No headphones required
  • Audio follows hologram position

Battery

  • Built-in rechargeable battery
  • 2-3 hours active use
  • 2 weeks standby
  • Operates while charging
  • USB charging

Connectivity

  • Wi-Fi 802.11ac (5 GHz)
  • Bluetooth 4.1 LE
  • Micro USB

Technical Specifications

Specification Details
Display See-through holographic
Resolution 1280x720 per eye
Refresh Rate 60 Hz
Field of View ~35° diagonal
Processor Intel Atom x5-Z8100
HPU 24 cores, >1 trillion ops/sec
RAM 2 GB
Storage 64 GB
Tracking 6DoF (inside-out)
Battery 2-3 hours
Weight ~579g
Price $3,000 (Dev), $5,000 (Commercial)

Reception

Praise:

  • First self-contained mixed reality headset
  • No wires, PC, or phone required
  • HPU revolutionary custom chip
  • Spatial mapping impressive
  • Gesture recognition innovative
  • Voice commands with Cortana
  • Pioneered mixed reality category
  • Windows 10 integration
  • Enterprise applications promising
  • Foundational for AR industry

Criticism:

  • 35° FOV severely limited
  • $3,000-$5,000 price prohibitive
  • 579g heavy for extended wear
  • 2-3 hour battery life
  • Developer/enterprise focus only
  • Limited consumer applications
  • Gesture tracking imprecise
  • Processing power limited[2]

[3]

Legacy

The original HoloLens pioneered the mixed reality category and established:

  • Self-contained AR headset concept
  • HPU as dedicated spatial computing chip
  • Inside-out tracking for AR
  • Spatial mapping and anchors
  • Hand gesture-based interaction
  • Foundation for HoloLens 2 improvements

See Also

References