Latest Microsoft patents can turn Hololens Augmented Reality into Virtual Reality glasses


Microsoft’s Hololens is at present leading the augmented reality race, having just started pre-orders for the Developer Kit. It seems however that most of the other companies in the field are betting on Virtual Reality headsets, including Google’s cardboard, Facebook’s Oculus Rift and HTC’s Vive.

With a new patent Microsoft is hoping buyers will not have to choose.

Microsoft has applied for a patent for a head-mounted display with an electrochromic dimming module which would switch glasses on demand from augmented to virtual reality.

The description notes:

The technology provides a dimming module for a near-eye display, NED, device that controls an amount of ambient light that passes through the transmissive near-eye display  to a user. The dimming module includes at least one electrochromic cell  that enables variable density dimming so that the NED device  may be used in an augmented reality (AR) and/or virtual reality (VR) application. The electrochromic cell may be a monochrome electrochromic cell having stacked layers of a monochrome electrochromic compound layer  and insulator sandwiched between a pair of transparent substrates  and conductors . A current may be applied to the conductor layers  to control the amount of dimming in response to a dimming value. A NED device having a dimming module  may be included in a visor , or other type of head-mounted display, HMD . The dimming module  may be flat and supported by a flat waveguide mount  in the user’s field of view.

The technology will let users block out the external view at the flip of a switch, switching from adding information to the real world to being immersed into a virtual one.

The current Hololens design is finalized as far as we know, so we do not expect to see this in this generation of glasses, but a future version with an even wider field of view is likely to benefit from this new feature.

The full patent can be read here.

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