VRB News
Virtual Reality Brisbane
  • Home
  • About us
  • IT news
  • Tech
  • World
  • Contact
No Result
View All Result
  • Home
  • About us
  • IT news
  • Tech
  • World
  • Contact
No Result
View All Result
No Result
View All Result
Home IT news

New flat lenses arrive that solve limitations of current optical systems

admin by admin
July 18, 2022
in IT news
0
New flat lenses arrive that solve limitations of current optical systems
0
SHARES
32
VIEWS
Share on FacebookShare on Twitter

The Harvard School of Engineering and Applied Sciences (SEAS) has presented a new type of lenses that can completely revolutionize the market, and that can have important repercussions on the development of virtual reality headsets.

This is a huge leap compared to a prototype shown in 2012. The new lenses are ultra-thin and completely flat, made of a glass substrate and tiny silicon antennas that concentrate light. The light that passes through this lens curves instantly instead of gradually as with traditional lenses. Such a curvature can be designed by an algorithm and adjusted to perform almost any purpose.

“This means that more complicated effects such as color correction, which in a conventional optical system requires light to pass through several thick lenses one after the other, can be achieved in an extremely thin and miniaturized device,” says research director Federico Capasso.

Bernard Kress, the top optics expert in the Google X department, values this advance very positively:

“Google [X], and especially the Google Glass group, relies entirely on state-of-the-art optical technologies to develop products that offer greater functionality, can be easily mass-produced, take up little space and are lightweight, without compromising their efficiency. Last year, we proposed to Professor Capasso’s group the achievement of a goal that was unattainable using flat lenses. Although there are various ways to design achromatic lenses, until now there was no solution to implement a flat, dispersion-free optical element that simultaneously offers uniform efficiency and the same diffraction angle for three different wavelengths. We were very pleased that Professor Capasso accepted our challenge, and we were also surprised to see that they were able to solve the problem in just one year.”

The new lenses, dubbed “achromatic metasurface”, dramatically improve the prototype shown by Capasso’s research group in 2012. That prototype, the first in its category, corrected some of the aberrations of conventional lenses, but suffered from the limitation of focusing light of a single wavelength, and its efficiency was low. The new model uses a dielectric material instead of metallic for the nanoantennas, a change that greatly improves efficiency and, combined with a new design approach, allows their operation with a wide range of wavelengths. And most importantly, the new design allows the creation of two different planar optical devices. The first, instead of sending different colors in different directions like a conventional grid, deflects three wavelengths at exactly the same angle. In the second, the three lengths converge at the same point. Therefore, a flat lens can create a color image by focusing on the primary colors, red, green and blue. Computer simulations suggest that, using a similar architecture, lenses capable of collimating many different wavelengths, and not just three, could be created.

“This is a giant step forward when it comes to manufacturing a planar optical technology in a very small size that overcomes the limitations of standard planar lenses, known as diffractive,” says Capasso. “It also opens new doors to new functionalities due to the amount of space that is gained thanks to metasurfaces.”

The truth is that our mouths water when we think about the possibilities. Without being experts in optics, who knows if this would allow the use of a curved screen in an HMD that completely covers our viewing angle and leave behind the barrier of just 100º FOV that can be achieved with the limitations of current lenses. Undoubtedly, this discovery has the potential to be a real revolution, and we hope that other HMDs developers will make some evaluation of it as soon as possible. For now, it seems that in Google Glass they are delighted.

Previous Post

Project Morpheus will also be at GDC 2015

Next Post

The Realm System measures our effort and transmits it to the game

admin

admin

Related Posts

How to Grow a YouTube Channel with ScaleLab
IT news

How to Grow a YouTube Channel with ScaleLab: Effective Strategies for Creators

February 4, 2025
Sticker mockups
IT news

Sticker mockups: how to visualize your ideas professionally and efficiently

January 13, 2025
Ways to Get Free Senegal Proxies for Work and Surfing
IT news

Ways to Get Free Senegal Proxies for Work and Surfing

December 24, 2024
Crypto Betting Frontiers
IT news

Crypto Betting Frontiers: The 2025 Landscape

December 6, 2024
iGaming Marketing Trends for 2025
IT news

iGaming Marketing Trends for 2025: Adapting to a Rapidly Changing Landscape

December 5, 2024
Next Post
The Realm System measures our effort and transmits it to the game

The Realm System measures our effort and transmits it to the game

Premium Content

(UPDATED) Sony confirms SYREN and Gun Club VR for PSVR Submitted by community

(UPDATED) Sony confirms SYREN and Gun Club VR for PSVR Submitted by community

December 3, 2021
Adobe Creative Cloud to receive new support for VR 180

Adobe Creative Cloud to receive new support for VR 180

January 19, 2022
The AI 'software' that will allow anyone to design their own clothes

The AI ‘software’ that will allow anyone to design their own clothes

November 1, 2021

Browse by Category

  • Games
  • IT news
  • Tech
  • World

VRB News is ready to cooperate with webmasters and content creators. Send an email to info@virtualrealitybrisbane.com

Categories

  • Games
  • IT news
  • Tech
  • World

Recent Posts

  • How to Grow a YouTube Channel with ScaleLab: Effective Strategies for Creators
  • Sticker mockups: how to visualize your ideas professionally and efficiently
  • Ways to Get Free Senegal Proxies for Work and Surfing

© 2023 - The project has been developed ServReality

No Result
View All Result
  • Home
  • About us
  • IT news
  • Tech
  • World
  • Contact

© 2023 - The project has been developed ServReality

Are you sure want to unlock this post?
Unlock left : 0
Are you sure want to cancel subscription?