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microlenses News
European Initiatives Increase Access to Quantum Magnetometers
FREIBURG, Germany, April 18, 2021 — Researchers from six Fraunhofer institutes are working on two projects that aim to make quantum magnetometers — sensor devices that measure magnetic field — usable in industrial settings. Magnetometers are currently limited in such...
VCSEL Addition Helps AI Light-Field Camera Read Facial Expressions
DAEJEON, South Korea, Jan. 24, 2022 — A team at the Korea Advanced Institute of Science and Technology (KAIST) has developed a technique for facial expression detection by merging near-infrared (NIR) light-field camera imaging techniques with AI technology. Unlike a conventional camera,...
3D-Printed Lens Design Improves Data Transfer Possibilities
CHAMPAIGN, Ill., Dec. 15, 2020 — A team of researchers from the University of Illinois has developed a spherical lens capable of allowing incoming light — from any direction — to be focused on the lens’s surface opposite the input direction into a very small spot....
Ultraprecise 3D Microprinting for Optical and Photonic Components
Oct 23, 2018 — Miniaturization is the trend of downsizing devices and products, which is triggering technological innovation. Miniaturization down to the microscale means functional components are becoming even smaller and lighter and increasing the performance of...
Pushing camera design beyond nature’s limits
URBANA, Ill. – A camera design inspired by the ocular systems found in insects, arachnids and crustaceans is being pushed beyond anything that exists in nature. In the May 2 issue of Nature (doi: 10.1038/nature12083), an interdisciplinary team led by John A....
Precision Optics Posts Revenue Increase, Loss Decrease
GARDNER, Mass., May 21, 2013 — Optical instruments developer Precision Optics Corp. Inc. posted higher revenue and a decrease in losses for the third quarter ending March 31, as sales of its medical device products increased.
Camera Mimics an Insect’s Compound Eyes
URBANA, Ill., May 1, 2013 — A hemispherical-shaped digital camera that mimics the design of ocular systems found in arthropods offers a wide-angle bug’s-eye view and nearly infinite depth of field for applications ranging from advanced surveillance cameras to miniaturized...
Quantum Efficiency Advances Sensors for Night Vision
Jun 1, 2012 — In recent years, low-noise CMOS imaging sensors have triggered many new opportunities and applications for the night-vision market. Although low noise is key, it is not the only parameter to consider when dealing with low-light vision. Sensitivity...
Microlenses Make Superior Endoscopes
DUISBURG, Germany, Nov. 7, 2011 — A newly developed image sensor transmits perfect 3-D images from inside the human body, thanks to the use of microlenses. The specially designed endoscope enables surgeons to see every detail during an operation, almost as though he were actually...
Efficient and uniform illumination with microlens-based band-limited diffusers
Apr 12, 2010 — Uniform illumination over a certain target area is a common requirement in many applications, and oftentimes schemes must be devised to ensure that this requirement is achieved. In display systems, for example, light that illuminates a viewing...
The ins and outs of adjustable microlenses
CHANGCHUN, China – Adjustable microlenses now have a new knob that can be turned, courtesy of a research team led by Yanchun Han of Changchun Institute of Applied Chemistry. The group demonstrated two new types of variable-focus liquid microlenses, one constructed...
Clever cars get color cameras
MUNICH, Germany – In a move that is reminiscent of the 1980s hit series Knight Rider, researchers at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS in Duisburg have developed a process that will give a futuristic boost to in-car driver...
Gas-Assisted Embossing and UV Curing Combine to Make Microlens Arrays
May 1, 2008 — Individual microlenses may be small, but a large array of them can have a big impact — and present some big challenges. Because microlens arrays are a key optical component in large-format LCD TVs and elsewhere, there is a need for low-cost and...
A Camera with 12,616 Lenses
STANFORD, Calif., March 19, 2008 -- A digital camera is being developed with 12,616 microlenses -- each in effect a tiny camera -- that can take photos in a kind of super 3-D for potential use in facial recognition, biological imaging, and 3-D printing, among other applications....
Ink-Jet Technique Yields Microlenses of Various Focal Lengths
Aug 1, 2007 — Microlenses, which are used for technologies such as CCD cameras and laser beam collimators, can be difficult and, thus, expensive to produce. Some researchers have applied ink-jetting methods to deposit polymer solutions and UV-curable adhesives to...
Microlens Arrays Produced by Soft Lithography
Oct 1, 2006 — A team of scientists at Sungkyunkwan University in Suwon and at LG Chem Ltd.’s Research Park in Taejon, both in South Korea, has fabricated two-dimensional arrays of microlenses by soft lithography, using spin-cast polystyrene beads as a template....
Formulating Lenses that Focus on Their Own
Sep 1, 2006 — Researchers at the University of Wisconsin-Madison have devised some smart microlenses that change optical properties, such as focal length, on their own in response to varying environmental conditions. The devices, either singly or in arrays,...
Ink-Jet Technique Produces Microvessels and Microlenses
May 1, 2005 — Researchers at Max Planck Institut für Polymerforschung in Mainz and Universität Siegen, both in Germany, have fabricated microvessels and microlenses using an ink-jet method that deposits droplets of a solvent onto a polymer substrate. The approach...
High-Numerical-Aperture Microlenses Fabricated by Soft Lithography
Apr 1, 2005 — In the March 14 issue of Applied Physics Letters, researchers at Nanyang Technological University in Singapore and Shenzhen University in China describe the use of soft lithography to produce microlenses in hybrid SiO2/TiO2 sol-gel glass, with...
Soft Lithography Reproduces Microlenses
May 1, 2003 — As we move from the electronics to the photonics age, micro-optics are finding a place in more and more applications. Now researchers have introduced a soft lithography process that they hope will enable the low-cost, mass production of microlenses...
(20 results found)
May 2024
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