iPhone 17 Pro: l'altoparlante si allunga e l'ascolto si affina
#Altoparlante #Apple #Audio #Design #FaceID #Indiscrezioni #iOS #iPhone #iPhone17 #iPhone17Pro #iPhone17ProMax #Leak #Metalens #Notizie #Novità #Rumors #Smartphone #TechNews #Tecnologia
https://www.ceotech.it/iphone-17-pro-laltoparlante-si-allunga-e-lascolto-si-affina/
iPhone 17: la tecnologia metalens ridurrà la Dynamic Island
#Apple #Design #Display #DynamicIsland #FaceID #Indiscrezioni #iPhone #iPhone17 #iPhone17Air #iPhone17Pro #iPhone17ProMax #JeffPu #Leak #Metalens #Notch #Notizie #Novità #Rumors #Smartphone #TechNews #Tecnologia
https://www.ceotech.it/iphone-17-la-tecnologia-metalens-ridurra-la-dynamic-island/
iPhone 17 Pro Max: Dynamic Island più piccola? Nuovi rumor
#Apple #Design #DynamicIsland #FaceID #iPhone #iPhone17 #iPhone17ProMax #Leak #Metalens #Notizie #Novità #Rumors #Smartphone #TechNews #Tecnologia
https://www.ceotech.it/iphone-17-pro-max-dynamic-island-piu-piccola-nuovi-rumor/
iPhone 17 Pro Max: Apple riduce la Dynamic Island
#Apple #DynamicIsland #FaceID #iPhone #iPhone17ProMax #JeffPu #Leak #Metalens #Notizie #Novità #Rumors #Smartphone #Tecnologia
https://www.ceotech.it/iphone-17-pro-max-apple-riduce-la-dynamic-island/
iPhone 17 Pro: fotocamera 48 MP, 12 GB di RAM e novità
#A19Pro #Apple #Chipset #FaceID #Fotocamera #Fotografia #Hardware #iPhone #iPhone17Pro #iPhone17ProMax #Leak #Metalens #MobileNews #Notizie #Novità #RAM #Rumors #Smartphone #Tecnologia #Teleobiettivo
https://www.ceotech.it/iphone-17-pro-fotocamera-48-mp-12-gb-di-ram-e-novita/
Forscher haben erstmals eine ultraflache Meta-Linse hergestellt, die groß und scharf genug ist, um selbst astronomische Aufnahmen zu erstellen – und die leicht massenproduzierbar ist. #Metalinse #Nanotechnologie #Metalens
https://www.scinexx.de/news/technik/ultraflache-meta-linsen-jetzt-auch-in-gross/
2Pi Optics Reveals the World’s First Fisheye Metalens https://petapixel.com/2024/01/04/2pi-optics-reveals-the-worlds-first-fisheye-metalens/ #lenstechnology #Equipment #2pioptics #metalens #ces2024 #fisheye #News
#Astronomie #Teleskop #Lens
#JamesWebbSpacetelescope
#RESEARCH UPDATE
#Telescope with
large-aperture
#metalens
18 Jan 2023
https://physicsworld.com/a/telescope-with-large-aperture-metalens-images-the-moon/
New Light Field Camera Can Focus Up-Close and Far Away Simultaneously
#news #technology #depthoffield #lens #lightfieldcamera #metalens #metasurface #nanophotonic #research
Compact Wide-Angle Metalens Camera Eliminates Bulky Glass Optics
#equipment #mobile #technology #compactcamera #highquality #machinelearning #metalens #metalenses #metaoptics #metasurface #metasurfaces #nanooptic #nanotechnology #neuralnanooptic #submicron #tinycamera #wideangle
Researchers Shrink High-Res Camera Down to the Size of a Grain of Salt
Researchers from the University of Princeton and the University of Washington have developed a high-resolution, full-color camera that is the size of a grain of salt that is the next generation of metasurface technology.
Tiny cameras have long been thought to have the potential to see problems in the human body and help scientists and medical professionals treat various illnesses, but past implementations of metasurface-based compact cameras have only been able to produce fuzzy, distorted images with limited fields of view.
"While sensors with submicron pixels do exist, further miniaturization has been prohibited by the fundamental limitations of conventional optics," the researchers say. "Traditional imaging systems consist of a cascade of refractive elements that correct for aberrations, and these bulky lenses impose a lower limit on camera footprint. A further fundamental barrier is a difficulty of reducing focal length, as this induces greater chromatic aberrations."
But these researchers appear to have overcome these issues. In a paper published on Nature and summarized by Princeton University, the team shows that it was able to produce what they describe as "crisp" full-color photos that are "on-par" with a conventional compound camera that is 500,000 times larger. The team is calling the new camera a "neural nano-optic" system.
The metasurface is studded with 1.6 million cylindrical posts that are each roughly the size of an HIV virus. Each post has unique geometry and functions like an optical antenna, Princeton explains. These unique cylinders combine with machine learning algorithms that interpret how light hits each and combine the data together to produce high-quality images.
Below is a figure from the paper that shows what the neural nano-optic camera can capture compared to previous methods.
"We perform comparisons against a traditional hyperbolic meta-optic designed for 511 nm and the state-of-the-art cubic meta-optic from Colburn et al," the researchers explain. "Additional experimental comparisons against alternative single-optic and meta-optic designs are shown in Supplementary Note 11. Ground truth images are acquired using a six-element compound optic that is 550,000× larger in volume than the meta-optics. Our full computational reconstruction pipeline runs at real-time rates and requires only 58 ms to process a 720 px × 720 px RGB capture."
Previous micro-sized image example (left) versus the new neural nano-optics camera result (right). | Via Princeton Engineering
The researchers are now working to add more computational abilities to the camera, and beyond improving the image quality they would like to add the capability for object detection and sensing that would be relevant in medicine and robotics.
"We could turn individual surfaces into cameras that have ultra-high resolution, so you wouldn't need three cameras on the back of your phone anymore, but the whole back of your phone would become one giant camera," Felix Heide, the study's senior author and an assistant professor of computer science at Princeton says. "We can think of completely different ways to build devices in the future."
_Image credits: Header image from the research team, via Princeton University _
#equipment #news #technology #compactcamera #machinelearning #metalens #metaoptics #metasurface #metasurfaces #nanooptic #nanotechnology #neuralnanooptic #submicron #tinycamera
Samsung Researching Flat, Metalens Tech for Smartphone Integration
As part of an industry presentation on nanotechnology in Seol, Korea, Samsung executives revealed that the company is researching metalens technology, which refers to a flat lens system that instead uses nanoparticles to align light rather than relying on curved optics.
Metalens technology involves taking the typically large and complicated optical structure of camera lenses and flattening them into a much smaller system that bends light using nanoparticles instead of larget sets of curved optics. In a Harvard study from 2016, a layer of transparent quartz thinner than a human hair was coated in millions of tiny pillars of titanium dioxide. These pillars or “towers” are arranged in patterns so that, when light hits them, they can be sliced up and focused. Each specific pattern focuses a different color of light.
Different approaches to metalens development have sprung up since then, including an MIT project that created a metalens that could focus with no moving parts as well as a startup called Metalenz that showed how it was creating metalens structures for use in smartphones. While metalenses have not found their way into commercial products, some scientists are already experimenting with flattening camera optics, including a group from the University of Ottawa who created a system that uses a metalens and a "spaceplate" to completely eliminate modern optics in larger cameras.
MIT's metalens graphic. | MIT
As reported by TheLec, Samsung says that it hopes that its technology will help eliminate the angled glass found in normal lenses and replace them with flat glass instead that refract light at the correct angles using nano particles placed between the glass and the lens. The company says that when the technology is ready, it will incorporate it not only into its own first-party products, but produce it for other brands as well. In addition to dramatically reducing the size of the camera arrays on smartphones, Samsung is also looking at applying nanotechnology to its capacitors to make them thinner as well.
Up to this point, metalens development has largely been researched by engineers at Universities and smaller startups. Samsung's foray into the field will go a long way to legitimizing the technology and will very likely escalate the development of the space, thanks mainly to the company's large coffers. The future where smartphones will eliminate the sometimes obnoxiously large camera bumps may come sooner than expected.
#mobile #news #flatlens #futuretech #lens #lenses #lenstechnology #metalens #nanoparticles #nanotechnology #samsung
Revolutionary ‘Spaceplate’ Could Eliminate Traditional Camera Lenses
Researchers from the University of Ottowa have developed a concept that would reduce the size of lenses by a huge margin and effectively eliminate the size of modern optics if combined with a metalens. The team tackled not lens elements themselves, but instead the space between them.
The researchers explain that the last few centuries of optical work rely on perfecting and combining lenses to better control optical performance. Building on that, relatively new nanotechnology has allowed for the development of metalenses that have the capability to shrink down optics by a large degree.
But unaddressed in metalens development is the requirement for space between optical elements. No matter how small a lens can get, it still relies on space in order to produce images. That space will always be an obstacle for miniaturization unless it is addressed directly.
As described in the research paper's abstract, the researchers pointedly address the issue of space by presenting the concept of and experimentally demonstrating an optical "spaceplate."
"…an optic that effectively propagates light for a distance that can be considerably longer than the plate thickness. Such an optic would shrink future imaging systems, opening the possibility for ultra-thin monolithic cameras. More broadly, a spaceplate can be applied to miniaturize important devices that implicitly manipulate the spatial profile of light, for example, solar concentrators, collimators for light sources, integrated optical components, and spectrometers."
The team, led by Dr. Orad Reshef -- a senior postdoctoral fellow in the Robert Boyd Group -- and Dr. Jeff Lundeen -- Canada's Research Chair in Quantum Photonics and Associate Professor in the Department of Physics at the University of Ottawa -- spoke with Phys and explained that the team wanted to address how light spreads out between optical elements and tackle aspects of that process that lens elements can't do anything about.
In an interview, Dr. Reshef says that light naturally spreads out when it travels, and every optical device currently used relies on that spread in order to work. As an example, he points to the large gap between the eyepiece and the objective lens in a telescope or a camera lens: both rely on that distance and spread in order to properly function.
But that gap, and other gaps in a lens' design, takes up a lot of space, and his team developed what they call a "spaceplate" that is able to take that same spreading of light and compress it into a "counterpart" to the lens and allow whole imaging systems to get dramatically smaller as a result.
"We considered what would happen if you manipulated light based on the angle rather than the position of a light ray," Dr. Lundeen said to Phys. "Lenses act via the position of the ray. Angle is a completely novel domain, and no one had shown that it could be used to make something particularly useful. We identified a useful application, compressing space. And then we showed that we could actually design and experimentally demonstrate plates that do exactly that."
Dr. Reshef says that this development would theoretically allow lens makers to shrink down all manner of large devices that were before thought impossible to miniaturize.
"In order to design it, we need to come up with a new set of rules that is incompatible with that used in lens design. Nobody knows what they are, it's like the wild west," he says. "It's surprising that optical elements like lenses have been around for a millennium and their design rules have been well understood for over 400 years, and yet we're still discovering such fundamental new optical elements for imaging."
The spaceplate could work in tandem with a metalens to significantly reduce the size of optics to the point where, in example graphics, the lens appears flush with a camera's sensor.
The researchers say they are currently working on developing the next generation of the technology to increase the compression factor and improve overall performance.
"We already have some designs to increase the compression factor from five to over 100 times, and to increase the total transmission. To continue doing this, we need to come up with a completely new design paradigm," Dr. Lundeen says.
While metalenses have threatened to completely eliminate the camera bump in modern smartphones, the spaceplate in combination with metalens technology has the potential to eliminate modern lenses entirely. It's a possibly revolutionary development in the field of optical science, and the full research report can be read here.
#equipment #mobile #news #technology #cameraoptics #cameras #lenses #metalens #miniature #miniaturize #optics #research #science #spaceplate #universityofottowa
