A blood vessel receptor that responds to light could aid more effective treatment of vascular diseases and other medical conditions. A team led by Johns Hopkins Medicine discovered the receptor, which causes blood vessels to relax in response to light. The researchers also found that blood vessel function can be regulated through changing light wavelengths. The researchers made the findings inadvertently when their blood-vessel-analysis equipment revealed tension in vessels after motion detection lights came on. “I had this slightly crazy idea,” said professor...Read full articleRelated content from Photonics MediaARTICLESSpectral Mapping of Heart Tissue Could Help Improve Ablation TherapyAn ablation catheter incorporating near-infrared (NIR) spectroscopy mapping was able to distinguish various tissue types in hearts donated from patients with cardiovascular disease. Using this...BioPhotonics Sep/Oct 2020 IssueTechnique Interprets Hyperspectral Images Using Phasor ApproachAn imaging technique called spectrally encoded enhanced representations (SEER) provides greater clarity and works up to 67 times faster and at 2.7 times greater definition than existing spectral...BioPhotonics May/Jun 2020 IssueNIH Researchers Speed Image Processing for Fluorescence MicroscopyAdvances in image processing techniques could reduce post-processing time for highly complex microscopic images up to several thousandfold, based on work done by a research team at the National...BioPhotonics Sep/Oct 2020 IssueVirginia Tech Receives $2.4M to Optically Measure Brain ActivityResearchers at the Fralin Biomedical Research Institute at Virginia Tech Carilion School of Medicine (VTCSM) received a $2.4 million National Institutes of Health grant to use optically pumped...BioPhotonics Jul/Aug 2021 IssuePRODUCTSBlackbody SystemThe Nightingale Body Temperature Reference (BTR) Blackbody System from Santa Barbara Infrared Inc. is designed to detect human body temperature for COVID-19 testing. The system provides a...Photonics Spectra August 2020 IssueMachine Vision SoftwareSapera™ Vision Software Edition 2020-09 from Teledyne DALSA is a suite of image processing and artificial intelligence software to design, develop, and deploy high-performance machine vision...Photonics.com 11/11/2020Uncooled IR DetectorThe BXP-25E uncooled IR detector from Opto Diode Corp. is designed for fire and flame detection. The high-performance, lead selenide detector offers peak sensitivity between 3.6 and 3.8...Photonics Spectra August 2021 IssueSlide ScannerThe SLIDEVIEW™ VS200 slide scanner from Olympus Corp. captures high-quality virtual slide images and offers flexibility to empower advanced quantitative image analysis for brain, cancer, and...BioPhotonics Mar/Apr 2020 IssuePHOTONICS HANDBOOK ARTICLESAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. These articles will provide the tools optics designers need to tailor their designs to the appropriate manufacturing process and to optimize the cost of component fabrication.Aspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...Photonics HandbookFluorescence Lifetime Imaging: Choosing the Best Approach: Fluorescence lifetime imaging microscopy (FLIM), which measures the spatial distribution of the fluorescence decay, can be achieved either in the time or in the frequency domain. Each approach exhibits advantages and disadvantages, depending on the type of light detector and acquisition method employed.The term fluorescence is often applied as a synonym for photoluminescence, although luminescence actually covers fluorescence and phosphorescence. Both of these terms describe the process of...Photonics HandbookMachine Vision Cameras: Making the Right Selection: Improvements and affordability have broadened the use of vision systems for inspection, but several factors should be considered before making a purchase.Technological advances have resulted in new, higher-quality sensors that enable machine vision cameras to deliver greater features and functionality at a lower cost than ever before. These factors...Photonics HandbookPolarization-Based Imaging: Basics and Benefits: With spatial correction, line scan polarization cameras detect birefringence, stress, surface roughness, and physical properties that cannot be detected with conventional imaging.There are three fundamental properties of light: intensity, wavelength, and polarization. Almost all cameras today are designed for monochrome or color imaging. A monochrome camera is used to measure...Photonics HandbookWHITEPAPERSHigh-Speed Imaging in Biomedical Microfluidic ResearchThis whitepaper discusses multiple case studies when Phantom cameras have assisted in the advancement of microfluidic and cellular research.Photonics.com 11/17/2020Dispelling the Myths About Laminated FiltersThere is a common belief that there is no longer a need for traditional bandpass optical filters. While this may be true in some cases, not all laminated filters are created equal. In this paper we...Photonics.com 6/19/2020Using Lighting to Optimize Camera PerformanceHow light works can be a complicated subject. One of the biggest rules of thumb in imaging is that there can never be too much light. However, a common problem is finding enough light to clearly...Photonics.com 2/25/2020Camera-based Observation in Laser Material ProcessingCamera-based imaging enables real time observation and feedback during laser processing. This paper gives you an overview about several methods of camera-based observation to find the best solution...Photonics.com 7/1/2020WEBINARSBiophotonic Tools for Diagnosing and Treating Eye DiseaseThe development of new blood vessels plays a pivotal role in the leading causes of blindness, including macular degeneration and diabetic retinopathy. These conditions affect millions of people...Photonics.com 5/17/2017Listening to the Sound of Light to Guide SurgeriesPhotoacoustic imaging offers "x-ray vision" to see beyond tool tips and underneath tissue during surgical procedures, yet no ionizing x-rays are required. Instead, optical fibers and acoustic...Photonics.com 1/22/2021Photonics for OphthalmologyPhotonics Media invites you to join us for our upcoming FREE digital conference, "Photonics for Ophthalmology." The event will feature several 15-minute online presentations on the use of light-based...Photonics.com 6/9/2016Squeezing More Out of Light: Innovative Approaches to Time-Resolved Flow CytometryIn this webinar, presenter Giacomo Vacca, Ph.D., founder and president of Kinetic River, will discuss recent advances in time-resolved methods of flow cytometry and how these advances are being...Photonics.com 5/19/2020PHOTONICS DICTIONARY TERMSliquid crystal eyewearA wireless stereo imaging device used in conjunction with a monitor to produce a virtual interactive environment. Liquid crystal shutters in the eyewear are synchronized with the monitor at 120...EDU.photonics.com 9/8/2009periscopeAn optical instrument designed to displace the line of sight in a vertical direction. For submarines and other military uses the periscope is a long tube containing prisms at both ends and...EDU.photonics.com 9/8/2009range axisThe third dimension (depth or Z-axis) in an imaging system.EDU.photonics.com 9/8/2009scanning acoustic microscope (SAM)Also called scanning laser acoustic microscope. A device that uses high-frequency ultrasound waves to penetrate surfaces. A scanning laser beam is used as a detector, which transmits information...EDU.photonics.com 9/8/2009MEDIAProduct Demo: Automated Visual Inspection of Displays - Radiant Vision SystemsWatch a quick demo to see how scientific imaging systems enable fully automated visual inspection of illuminated displays and display components. ProMetric® Imaging Colorimeters and TrueTest™...Photonics.com 5/21/2021Light Tomorrow with TodayLuminate NY, the only optics, photonics and imaging (OPI) accelerator and investment fund in the world, announced the final winners at the Light Tomorrow with Today event in Rochester, NY. For the...Photonics.com 7/2/2018Supporting the Photonics Industry from the Laboratory - LIGHT MATTERS 01.2018On this month's episode of Light Matters, we take you to central Massachusetts as Worcester Polytechnic Institute and Quinsigamond Community College take on a comprehensive joint photonics laboratory...Photonics.com 1/18/2018Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 2/21/2018PHOTONICS BUYERS' GUIDE CATEGORIESNeurosurgery Laser SystemsMotion Analysis CamerasVideodisc Recording Systems and EquipmentCamera ShuttersCOMPANIESReynard CorporationReynard Corporation has been a premier supplier of custom optics and thin-film coatings to a global customer base since 1984. Reynard focuses on manufacturing the highest quality products with...Photonics Buyers' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideMLD Technologies LLCExperts In Thin-film Coating Design We practice a design-before-quote approach to help customers refine specifications and minimize technical risk. We understand how coated optical elements...Photonics Buyers' GuideOZ Optics LimitedEstablished in 1985, OZ Optics is a leading worldwide supplier of fiber optic components, test equipment and sensors. OZ Optics manufactures its products in three locations, Ottawa (Canada),...Photonics Buyers' Guide