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freeform optics News
Spiral Lens Extends Focal Length and Depth of Vision in Changing Conditions
BORDEAUX, France, Feb. 15, 2024 — A new, spiral-shaped lens could make consistently clear vision possible for people with lens implants or age-related farsightedness. The spiral diopter lens works much like progressive lenses, but without the distortions typical of those lenses. The spiral shape of the lens creates many separate points of focus. The multiple focus points enable the lens wearer to see clearly at different distances and in various light conditions. In addition to advancing contact lens technologies and
Multimodal Solution Points to Broader Adoption of Metamaterials
POHANG, South Korea, Nov. 9, 2023 — Metamaterials, artificial nanostructures that manipulate light, are costly and technologically challenging to fabricate. The broad, practical use of metamaterials depends on lowering their manufacturing cost and making them easier to create....
Manufacturing Methods Make Freeform Optics More Accessible
Sep 1, 2023 — From applications in ophthalmology, endoscopy, and microscopy — to use in head-up displays, lidar systems, unmanned aerial vehicles, and satellites — freeform optics are enhancing the performance of existing imaging systems and are key...
Holography Lends a Whole New Dimension to Metrology
Jul 3, 2023 — All optical imaging systems, from smartphone cameras to extreme-ultraviolet photolithography optics, are under increasing pressure to support higher resolution, broader spectral range, or higher sensitivity in low-light applications. Such demands...
Polymer Optics Target Complex Imaging Systems
May 1, 2023 — Polymer optics, also known as plastic optics, are ideal for reducing the footprint and weight of optical systems and assemblies, further fueling the demand for polymer optics in end uses in which these characteristics are important, such as in...
The Rise of Micro-Optics Shows No Sign of Slowing
Jan 6, 2023 — Micro-optics are a key enabler in the modern world, spurring advancements in consumer electronics, automotive lighting, and the next generation of autonomous vehicles. As demand grows from sectors far and wide, new fabrication approaches —...
Tool Path Optimization Bolsters Precision Machining of Freeforms
TOKYO, Oct. 12, 2022 — Researchers from Keio University developed a tool path generation method for driving an independently controlled fast tool servo (FTS) for freeform surface machining. Without necessity of trial and error, the method enabled rapid manufacturing of...
Liquid Crystal-Based Devices Manipulate Light with Flat Optics to Uncover Hidden Images
WASHINGTON, D.C., May 13, 2022 — An ancient optical illusion has been updated using the flat optics of today to create a device that reveals a hidden image when light is shined on it. Developed at the University of Ottawa, the magic window is a liquid crystal (LC)-based device that...
Glass-in-glass Fabrication Method Produces Complex Optics
WASHINGTON, D.C., April 21, 2022 — A manufacturing technique for creating microstructures by integrating two types of glass with different physical properties could provide a path to complex infrared (IR) optics to be used in spectroscopy, imaging, sensing, and other applications....
Researchers Create Complex Optics Out of a Fluid Situation
HAIFA, Israel, Dec. 3, 2021 — Researchers at Technion: Israel Institute of Technology have developed a method to fabricate freeform optical components by shaping a volume of curable liquid polymer. The work may enable faster prototyping of customized optical components for a...
Optical Surface Analysis: Focusing on the Fundamentals
Aug 30, 2021 — Today’s instruments for measuring optical components deliver increasingly higher resolution, larger measurement areas, and greater analysis functions. In addition to improving results, the added sensitivity and analysis options can also...
Deterministic Approach Reduces Error Potential in Freeform Design Process
BRUSSELS, May 26, 2021 — Researchers at Brussels Photonics (B-PHOT), Vrije Universiteit Brussel, Belgium developed a deterministic direct optical design method for freeform imaging systems. The method is based on differential equations derived from Fermat’s principle...
Integrated Metaform Device Delivers Compact AR/VR Eyewear
ROCHESTER, N.Y., May 5, 2021 — A team from the University of Rochester’s Institute of Optics imprinted freeform optics with a metasurface, in a combination of optical technologies that charts a course for a new fabrication method for AR/VR glasses. The metasurface, a silver...
Freeform Micro-Optics Reel Off New Applications
Mar 5, 2021 — Much attention is given to freeform optics fabrication, which has improved the performance of traditional micro-optic imaging systems1. But replicated freeform micro-optics are also fostering advancements across a broad spectrum of applications...
An Essential Exchange of Ideas Would Benefit the Optics Industry
Dec 3, 2020 — Highly dispersive mirrors, nanostructured coatings, and freeform optics are the vanguard in optics, and they are well positioned to expand performance and open up new applications. But there’s a caveat: Without better cooperation among...
Freeform Surfaces Present Opportunities and Challenges
Oct 2, 2020 — The classic example of a freeform surface in ophthalmic applications is the varifocal lens commonly used in eyeglasses. Due to the normal aging process, the eye’s ability to adapt between near and far slowly decreases. This leads to discomfort,...
Mike Davenport Named President of Rochester Precision Optics
WEST HENRIETTA, N.Y., Sept. 24, 2020 — Rochester Precision Optics promoted Mike Davenport to company president, effective Sept. 21. Davenport previously served as RPO’s vice president of operations. The promotion follows the announcement that Randy Shaw, who had served as company...
Noncontact Metrology for Aspherical Lenses
Apr 30, 2020 — Freeform and aspheric optics have become popular because they provide better performance than traditional optics and can do so with fewer optical elements. The downside of the higher performance is increased complexity in design, manufacturing, and...
Freeform Optics Produces a New Wave of Integration
Apr 22, 2020 — Metal optics have been around for a long time in a variety of industrial and commercial applications. Recently, new options have been added to freeform optics in the manufacturing process. With new materials, improved precision machining, and the...
OSA Honors Ursula Keller with Highest Award
WASHINGTON, D.C., March 13, 2020 — The Optical Society (OSA) announced in early February that Ursula Keller of ETH Zurich would be honored with the society’s highest award. OSA has been announcing winners of its annual awards since November 2019, with most of the awards coming...
Member Exclusive
Optimizing Freeform Optics
Aug 21, 2019 — Astronomical imaging from both ground and space provides precise data, and each has its pros and cons. Ground-based observation benefits from flexible infrastructure with large telescopes and instruments but suffers from atmospheric turbulence and...
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Canon Marketing Japan Invests in Äpre Instruments
TUCSON, Ariz., Aug. 13, 2019 — Canon Marketing Japan Inc. has made an investment in Äpre Instruments to develop metrologic technology to evaluate and measure advanced optical components such as freeforms and aspheres. The Canon division has also obtained exclusive distribution...
Dynamically Tunable 'Smartlens' Can Shape Light for Various Functions
BARCELONA, July 30, 2019 — The integration of an adjustable-dynamic zoom lens in a thin cellphone, in a miniaturized microscope, or at the remote end of a medical endoscope requires complex lenses that can handle the full optical spectrum and be reshaped electrically within...
Diamond Metalens Could Improve Quantum Device Performance and Scalability
PHILADELPHIA, June 14, 2019 — At the chemical level, diamonds are no more than carbon atoms aligned in a 3D crystal lattice. Even a diamond that looks flawless contains defects that can absorb or emit light. Small defects in diamonds called nitrogen-vacancy (NV) centers hold...
AR, VR Markets Primed for Rapid Growth
Apr 23, 2019 — After experiencing incremental gains over the past decade, the augmented and virtual reality (AR/VR) markets are poised for swift advancement as the technologies mature and find new uses. Market research firms predict that from 2017 to 2023, the...
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May 2024
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