Tag: lenses

New Research on Thinnest Lenses Could Shape the Future of Technology

As flat lens technologies emerges, the Hebrew University of Jerusalem publishes a method to help progress the field

Researchers at the Hebrew University of Jerusalem in late February printed groundbreaking investigate that could change lens know-how eternally, revolutionizing the market and substantially lowering the cost of significant-resolution cameras.

Lenses in programs and equipment such as eyeglasses, cameras, binoculars, and drones have historically been curved and cumbersome. With thick, significant, and high-priced lenses, gadgets can only progress so significantly. Scientists doing work for college analysis labs and organizations like Intel, Meta, and Microsoft have labored to address this bottleneck in advancing technology, Professor Uriel Levy, director of the Hebrew College of Jerusalem’s Center for Nanoscience and Nanotechnology, told The Media Line.

As a final result, flat lenses will shortly be greatly seen on the current market. A flat lens suggests a a lot more compact, lighter, and additional price-productive product or service. These factors will make flat lens systems much more attainable and as a result, offer the advantage and problem of range.

Professor Uriel Levy and Dr. Jacob Engelberg of the Hebrew University’s Centre for Nanoscience and Nanotechnology produced a method to standardize flat lens characterizations. This technique offers a answer for the arising obstacle of deciding on an acceptable flat lens for specific applications.

By way of ongoing exploration funded by Israel’s Science and Technological innovation Ministry and the Israel Innovation Authority, Levy and Engelberg posted significant parameters for measuring and analyzing flat lens technologies. Dr. Aviv Zeevi, VP Technology Infrastructure Division, Israel Innovation Authority, described that the authority is an independent publicly funded agency that feels it is important to collaborate concerning industry and academia to retain up with the aggressive world wide market place. He also told The Media Line that “the certain project on flat lens know-how can build an applied engineering that can create an economic and technological breakthrough in the locations of cellphones, virtual truth, augmented reality, and drones.”

Levy acknowledged the issue of simulating the high degree of performance viewed in bulkier, a lot more high-priced lenses. The attributes are really hard to duplicate in a lens Levy described as “small as a strand of hair,” without the need of sacrificing excellent, resolution, thickness, and body weight. Some “flat” lenses have been turning out to be thicker than comparable curved lenses to deliver the similar result. For that reason, standardized techniques of comparison are hugely significant.

A sizeable acquiring in Levy and Engelberg’s investigation determines how to properly measure resolution, which was a prior debate amongst the microtechnology community. When the resolution is correctly measured, flat lenses can be extra properly evaluated. Levy spoke about the dynamics of light and lens design and style. The goal of a curved lens is to bend the mild coming from a lot of unique angles towards the similar focal position. Producers have managed to productively immediate mild without a curve, but flat lenses are not a person-sizing-fits-all. Levy and Engelberg’s method can support designers and companies decipher which lens to use for a specific want, for case in point, outdoor use vs. indoor use.

Levy believes his results will expedite the integration of flat lens technological innovation into the market moving ahead. This technological know-how could revolutionize quite a few industries, such as images and videography, telecommunications, computing, and optics.

This new technology makes f/1.4 lenses at almost zero cost

Researchers at Technion Israel Institute of Know-how have designed a new way of building lenses with a curable liquid polymer that lets for quicker prototyping of new and custom made optics. It is created generally for programs these types of as corrective lenses, augmented and digital reality, clinical imaging and astronomy, but could perhaps grow to be a new producing process (or at the very least allow speedier improvement) of photographic lenses.

In accordance to a push release, the researchers began to create the new system after realising that there have been all over 2.5 billion folks all around the earth who do not have access to corrective eyewear. Their intention was to create “a straightforward process for fabricating high-high-quality optical parts that does not rely on mechanical processing or sophisticated and expensive infrastructure”.

https://www.youtube.com/view?v=ww1NCzLSI7A

The new technological know-how makes use of liquid polymers to vogue the lens, which is then healed into the hardened stable optical ingredient by remaining blasted with ultraviolet light-weight in a quite related way to how resin 3D printers do the job to remedy liquid resin into strong things. But with this technique, you really don’t have to offer with any kind of layer strains or aliasing from low pixel resolutions, resulting in sleek clear surfaces.

With the new strategy, the biggest problem was gravity. Soon after all, when you pour out a liquid, it tends to not keep its form and flatten out into a puddle. To triumph over this, the scientists uncovered a way to get rid of the liquid polymer when submerged within a different liquid, equalising the tension without the need of mixing, counteracting gravity and allowing the lens hold its condition.

Considering the fact that developing very simple spherical lenses, researchers have expanded into optics with odd geometries, together with toroid and trefoil designs. They’ve also analyzed the process with lenses up to 200mm in diameter reaching area features that they say rival all those of the greatest glass optics sprucing techniques although “being orders of magnitude faster and easier to make”.

The researchers are now doing work on a way to automate the fabrication procedure to let numerous optical topographies to be built in a far more precise and repeatable way. They are also experimenting with different polymers to find out which develop the most effective optical elements.

It’s a very fascinating optical tech and I’d be incredibly keen to see if this turns into a more popular approach of manufacture and prototyping for the major camera and lens corporations in the coming years. It absolutely sure would be faster for them to test optical types making use of a little something like this vs the existing traditional methods of grinding glass pucks. Of study course, they’d have to locate or build a polymer that presents the exact index of refraction as their optical glass in order to be equipped to take a look at optical models for mass lens production appropriately.

Read through a lot more about the new liquid polymer optics production tech at Technion Israel Institute of Know-how.

[via Innovation Origins]