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By the year 2020, the contacts industry is predicted to reach $13.5 billion. Pixabay

Inspired by the human eye, researchers have developed an adaptive metalens — essentially a flat, electronically controlled artificial eye — that automatically stretches to simultaneously focus and correct several factors that contribute to blurry images.

The study, published in the journal Science Advances, demonstrates the feasibility of embedded optical zoom and autofocus for a wide range of applications including cell phone cameras, eyeglasses and virtual and augmented reality hardware.


“This research combines breakthroughs in artificial muscle technology with metalens technology to create a tunable metalens that can change its focus in real time, just like the human eye,” said co-author Alan She from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS).

ALSO READ: Eye donations increase from 2009-13, but rise in unused Eyes too, says AIIMS data

“It also shows the possibility of future optical microscopes, which operate fully electronically and can correct many aberrations simultaneously,” the researcher added.

To build the artificial eye, the researchers first needed to scale-up the metalens.

Prior metalenses were about the size of a single piece of glitter. They focus light and eliminate spherical aberrations through a dense pattern of nanostructures, each smaller than a wavelength of light.


The adaptive metalens simultaneously controls for three of the major contributors to blurry images: Focus, astigmatism and image shift. Pixabay

“Because the nanostructures are so small, the density of information in each lens is incredibly high,” said She.

To solve this problem, the researchers developed a new algorithm to shrink the file size to make the metalens compatible with the technology currently used to fabricate integrated circuits.

ALSO READ: Microsoft, LV Prasad Eye Institute launch Artificial Intelligence for Eyecare

“This research provides the possibility of unifying two industries; semiconductor manufacturing and lens-making, whereby the same technology used to make computer chips will be used to make metasurface-based optical components, such as lenses,” the researchers said.

The researchers also demonstrated that the lens can simultaneously focus, control aberrations caused by astigmatisms, as well as perform image shift. Together, the lens and muscle are only 30 microns thick. (IANS)


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In all the wedding excitement, it's easy to overlook the impact a wedding has on the environment.

By Prerana Agarwal Saxena

In all the wedding excitement, it's easy to overlook the impact a wedding has on the environment. While everyone is making their big fat Indian wedding dreams come true, they are also adding their carbon footprint and undue energy consumption. Modern couples are now looking for ways to have a wedding with a sustainably conscious mindset. It's become about incorporating less waste, locally sourced and seasonal food, natural materials over the use of plastic. Mindful wedding planning and decor includes the use of recycled paper and goods along with eco-friendly venue needs. Check out this quick guide to achieve a sustainably conscious wedding without compromising on luxury:

Choose locally sourced material to uplift artisans
Sustainable can be luxurious too, incorporate some native flavour into the decor and theme. With the use of locally sourced materials and local artisans coming into play, the wedding instantly becomes sustainable. Include the work of local vendors ensure minimal packaging requirements, thus saving on unnecessary plastic and lamination. It also decreases the need for transporting elements from other cities and hence lowers the carbon footprint. For instance, at one of our weddings, we made use of sand art for a setup in Jodhpur. This helped promote local work while also being environmentally friendly with zero wastage of other materials. In another instance from Rajasthan, the traditional glass-blown technique was used to build decor items while giving a cultural touch to the destination wedding.

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The vaccination was administered from 7 a.m. till 7 p.m. and the compiled data was made available late at night.

The Tamil Nadu health department has administered 16,43,879 lakh doses of vaccine in the second mega vaccination camp organised by it. The state public health department in a statement on Sunday said that this has taken the total vaccination to one crore since the beginning of September till date. The vaccination was administered from 7 a.m. till 7 p.m. and the compiled data was made available late at night.

The health department officials also said that as the state has almost exhausted its quota of vaccines, there would not be any vaccines on Monday. Regular vaccination will resume after the vaccine supplies arrive from New Delhi, officials said. The state health department had expected to vaccinate 15 lakh people on Sunday in 18,824 centres spread across primary health centres, anganwadis, noon meal centres, government hospitals, schools and some auditoriums.

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IANS

Hanisha Kapoor, COO, ArchiesBeauty.com shares makeup trends experimented by these Bollywood divas throughout 2021 for inspiration.

Festivals are just around the corner and while you brainstorm about OOTDs (outfit of the day), don't forget the right makeup. Hanisha Kapoor, COO, ArchiesBeauty.com shares makeup trends experimented by these Bollywood divas throughout 2021 for inspiration. While some stuck to the classics, others mixed it up... take a look:

The Classic Red Lip
We don't see a future where classic red lips go out of fashion. The right way to achieve this celebrity look is to focus on accentuating your lips and keeping the rest of the face minimal. Give your lips a good scrub to plump them, moisturize and follow it up with a red lip liner to define the shape of your lips. Now go on with the perfect shade of red and finish your look with a slick of eyeliner, minimal concealer, and foundation.

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