What They Say
Karl Guttag has got access to an Nreal-based headset in the form being delivered as a product by LG in Korea and has conducted a detailed three part teardown. He liked the image quality which he rates as “very good compared to any other AR headset”, but he pointed out that it has a lot of drawbacks. He compares it to the Lumus Maximus and found that the Lumus product has “more than an order of magnitude better power-to-brightness efficiency” which is a big ussue and could mean that the Lumus could be 30X brighter for the same power. (Karl Guttag Impressed by Lumus & Compound Photonics)
The Nreal headset uses birdbath optics, rather than a waveguide and he sees it as “the epitome of a reasonably good birdbath design” with the expected advantages and disadvantages of the approach. It is based on Sony EXC335 microLEDs with FullHD resolution and a 0.71″ diagonal, whereas he points out that production devices would use the same size displays from BOE. He also does a detailed analysis of the optical films on the headset.
What We Think
As usual with Karl’s articles, there is a great deal of detail an information in this series and it must have taken a lot of time and careful work. It would be worth studying by anyone involved in any kind of headset, I think. (BR)
