Mimicking the performance of the human visual system is viewed as a difficult endeavor because of the extremely complex optical elements involved. In new work, researchers show that it's possible to create a lens system that ...
Optics & Photonics
May 16, 2023
0
11
The primitive compound eyes of a horseshoe crab are one the largest to be found in nature. In contrast to many insects and spiders that build their eyes from glassy proteins, the horseshoe crab uses cuticle, the same material ...
Plants & Animals
Nov 21, 2022
0
46
The last common ancestor of cephalopods and vertebrates existed more than 500 million years ago. In fact, a squid is more closely related to a clam than it is a to a person. Even so, the two lineages independently evolved ...
Plants & Animals
Jan 10, 2022
0
120
Cataracts are the most common eye ailment in humans. However, the exact processes leading to this condition are not fully understood. A team of researchers headed by the Technical University of Munich (TUM) has now discovered ...
Cell & Microbiology
Feb 16, 2021
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177
Researchers at Tohoku University have developed a new type of smart contact lenses that can prevent dry eyes. The self-moisturizing system, which is described in the journal Advanced Materials Technologies, maintains a layer ...
Materials Science
Jan 22, 2020
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22
Anyone who's tried to swat a pesky mosquito knows how quickly the insects can evade a hand or fly swatter. The pests' compound eyes, which provide a wide field of view, are largely responsible for these lightning-fast actions. ...
Optics & Photonics
Sep 25, 2019
0
10
Inspired by the human eye, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an adaptive metalens that is essentially a flat, electronically controlled artificial ...
Nanophysics
Aug 22, 2019
0
798
A research team led by the University of California San Diego has developed a soft robotic lens whose movements are controlled by the eyes—blink twice and the lens zooms in and out; look left, right, up or down and the ...
Materials Science
Aug 5, 2019
1
96
For all the good they do, eye drops and ointments have one major drawback: It's hard to tell how much of the medication is actually getting to the eye. Now in a study appearing in ACS Applied Materials & Interfaces, scientists ...
Materials Science
Oct 10, 2018
0
16
Nearly 150 years ago, the physicist James Maxwell proposed that a circular lens that is thickest at its center, and that gradually thins out at its edges, should exhibit some fascinating optical behavior. Namely, when light ...
Optics & Photonics
Sep 6, 2018
2
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