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Spiral-shaped lens provides clear vision at a

<p>Researchers have developed a spiral-shaped lens that maintains clear focus at different distances in varying light conditions. The new lens , described in Optica, works much like progressive lenses used for vision correction but without the distortions typically seen with those lenses. It could help advance contact lens technologies, intraocular implants for cataracts and miniaturized imaging systems.</p>

United statesBertrand simonPrem kumarLaurent galinierOptica publishing groupNanosciences laboratoryNorthwestern universityOptique graduate schoolUniversity of bordeauxFreeform lenses with enhanced multifocal behaviorEditor in chief prem kumarPublishing groupAdvancing opticsFreeform lenses with enhanced multifocal

Butterfly-Inspired Films Create Vibrant Colors While Passively Cooling Objects

Butterfly-Inspired Films Create Vibrant Colors While Passively Cooling Objects
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United statesPrem kumarWanlin wangNorthwestern universityShenzhen universityOptica publishing groupEditor in chief prem kumar

New lens analysis approach could improve trea

Nearsightedness is on the rise around the globe, especially among children. If current trends continue, half of the world’s population will be nearsighted by 2050, according to a report from the Brien Holden Vision Institute in Australia. Although the drivers of this worrisome trend aren’t entirely clear, specialized eyeglass lenses have been shown to keep myopia from getting worse. This is particularly important for children and teens who often experience progression in the condition as their bodies grow. Researchers from the ZEISS Vision Science Lab at the University of Tübingen, in Germany, and the University of Murcia, in Spain, describe their new instruments, which measure lens performance under real-world viewing conditions.

United statesAaron cohenAugusto arias gallegoPrem kumarNorthwestern universityBrien holden vision instituteOptica publishing groupUniversity of murciaVision science labExcellence initiative of the universityMethod of researchScience labExcellence initiativeEditor in chief prem kumarPublishing groupAdvancing optics

Light-based computing scheme reduces power ne

Mining cryptocurrency consumes up to 1% of the world's energy, presenting a need for an eco-friendly method as cryptocurrencies and blockchain applications become mainstream. New research published in Optica presents a light-based computing scheme that uses a photonic integrated circuit to reduce the energy necessary for cryptocurrency and blockchain applications.

United statesDavidab millerPrem kumarSunil paiOlav solgaardStanford universityNorthwestern universityOptica publishing groupShanhui fanOptical bitcoinEditor in chief prem kumarPublishing groupAdvancing optics

Light-Based Computing Scheme Reduces Power Needed To Mine Cryptocurrencies

Researchers have developed a new light-based computing scheme that uses a photonic integrated circuit to reduce the energy necessary for.

United statesDavidab millerPrem kumarSunil paiOlav solgaardOptica publishing groupNorthwestern universityStanford universityShanhui fanOptical bitcoinEditor in chief prem kumar