Microsoft has offered more information regarding HoloLens at its Build Develover Conference 2015 by posting a video on YouTube as well as a blog post that offers details regarding some of the hardware that powers this AR viewer.

According to Tech Radar, first and foremost, HoloLens is not connected by wires to function. It also does not require a phone or PC connection. The device is hands-free; enabling users can network with the world unfettered by controls or a keyboard.

Sight, sound and sensors

In its blog post, Microsoft has stated that the HoloLens weighs "significantly less than the average laptop." This means that the Redmond, Washington-based tech giant has reduced some of the bulk that users experienced in the initial hands on. The company also claimed that HoloLens can fine-tune to head-size and accommodate most eyewear.

The high-definition lenses of the AR viewer are see-through and HoloLens is able to send out multi-dimensional, full-color images with low-latency onto users' view of the real world by using "an advanced optical projection system," reports Microsoft.

In addition, HoloLens uses spatial sound, and, hence, holograms in all directions can be heard distinctly. The company further stated in the blog post that HoloLens will pick up sound from a particular location, creating sounds as the user would hear them made by something in real life.

The viewer is provided with an array of microphones to pick up voice commands and a photo/video camera allows the wearer to share what they are doing with others. In addition, the device comes with a depth sensor that maps environments of the wearer.

HoloLens also packs an advanced sensor unit dubbed as the inertial measurement unit (IMU), which contains an accelerometer, gyroscope and magnetometer. The IMU as well as the head-tracking cameras enable HoloLens to monitor how the wearer's head is moving.

The HoloLens processor

The HoloLens comes with a GPU as well as CPU, in addition to a third processor called a Holographic Processing Unit (HPU), which allows the device to understand where the user is looking, his/ her gestures and also to map the environment of the user. The HPU is a Microsoft designed and engineered bit of hardware.