Skip to content 
No need to buy a TV at home
No need to install navigation in the car
No need to bring a dictionary or translation pen when traveling abroad
If you want to get up early, don’t bring your phone.
No need to bring headphones, no need to bring car keys…
You are away from such a simple life
All I need is a pair of glasses called “Skylark”
Recently, the world’s first polarized holographic waveguide AR glasses developed by a team from Southeast University were launched. They were named “Skylark” because they can “sing and dance well” and “are as light as a bird”.
This technology originated from the Information Display and Visualization Research Institute of the School of Electronic Science and Engineering of Southeast University. It is a new high-end display technology independently developed by a Chinese scientific research team.
After putting on the glasses, a screen appeared in front of me. I said a few words and the screen immediately performed voice conversion, and Chinese and English text appeared accurately and clearly. Then I switched to the navigation function, and the screen indicated the current location, and indicated the direction of travel and the distance to the destination through arrows and text.
Compared with traditional AR glasses
What is different about “Skylark”?
Zhang Yuning, professor of the School of Electronic Science and Engineering and dean of the Display Research Institute of Southeast University, introduced that traditional AR glasses generally use surface relief grating (SRG) technology, while this pair of glasses uses polarization volume holographic grating (PVG). The difference is that SRG uses micro-nano etching and nano-imprinting methods to form a periodic structure based on morphology on the surface of the material, while PVG uses holographic interference to form a periodic distribution based on refractive index changes inside the material.
“Our advantages are mainly concentrated in three aspects. First, the light efficiency is improved to 300%, which greatly improves the product’s battery life and display brightness; forward light leakage is reduced by 80%, and the light leakage is almost invisible to bystanders, which improves the privacy and social friendliness of the product; PVG’s unique polarization multiplexing technology also achieves a larger field of view and exit pupil size while ensuring the continuity and uniformity of the picture. Second, the cost is significantly reduced. The main preparation process of PVG technology only requires wet coating and holographic exposure, without the need for complex and expensive micro-nano processing technology. Compared with the existing SRG technology, the preparation cost can be reduced by 60%. It is expected to promote the large-scale commercial production and popularization of AR glasses. Third, it is light and comfortable to wear.The Skylark weighs only 45 grams, making it more comfortable to wear, greatly improving the convenience and smoothness of user control, and bringing users an efficient, intelligent and immersive AR experience.” Zhang Yuning said.
“Skylark” represents a new display mode
How will it affect our lives in the future?
Zhang Yuning described a vision that is very exciting to us: “For example, when you watch TV at home, you can sit down and watch it anywhere you want; the same is true when you use your mobile phone. You don’t need to take the phone out of your pocket, it will appear in front of you, and you can even control the size and distance of the picture; the same is true when driving. The dashboard of the car can be grafted onto the glasses and directly presented in front of you… In short, the functions that the original display can carry can be carried by AI glasses in the future!”
