DOUG FARMER, SENIOR EDITOR [email protected]An optical mapping system has demonstrated that hydroxychloroquine (HCQ) can cause arrhythmia in animals, so researchers and clinicians are cautious about its effectiveness as a treatment of COVID-19 in people. Previously, HCQ, a less toxic form of chloroquine (CQ), has been prescribed to those with malaria and various autoimmune conditions and has showed some promise in reducing COVID-19 symptoms in a limited number of cases. Images show the voltage surface on a rabbit heart with and without HCQ. Without the drug (normal), the electrical activation spreads homogeneously, while with HCQ,...Read full articleRelated content from Photonics MediaArticlesAI, OCT Operate in Tandem to Detect Plaque Erosion in the HeartResearchers from the University of Electronic Science and Technology of China have developed an AI method that can automatically detect plaque erosion in the heart’s arteries using optical...Photonics.com 6/23/2022Light Therapy Could Soon Treat Cardiac ArrhythmiaHeart disease is the leading cause of death in the developed world. Sudden cardiac death is triggered by the breakdown of a normal periodic heart rhythm, also known as the sinus rhythm. The emergence...BioPhotonics May/Jun 2023 IssueImaging Method Lights up Brain OxygenationResearchers at the University of Rochester and University of Copenhagen’s Center for Translational Neuromedicine developed a bioluminescence imaging technique that tracks the movement of oxygen...BioPhotonics.com April 2024 IssueLabel-Free Imaging Shows Dynamics of Intracellular Cargo TransportUntil now, scientists have relied on fluorescence microscopy techniques to study intracellular cargo transport, a vital process to maintaining essential cellular functions. However, the effects of...BioPhotonics Jan/Feb 2024 IssueProductsBandpass FiltersThe ADVANTECH™ hard coat bandpass filters from Andover Corp. offer steep slopes, high light transmission, durability, and long life for demanding applications. The filters provide...BioPhotonics May/Jun 2023 IssueLEDiL Optics KitThe New Energy LEDiL Optics Kit (NELOK) from NewEnergy consists of a single LED mounted on a printed circuit board and attached to a heatsink along with 15 lenses, three each from five lens families....Photonics Spectra November 2023 IssueImaging ColorimeterThe I16-G from Radiant Vision Systems is an imaging colorimeter and metrology solution that can be used to measure properties of light that influence the visual quality of devices such as LEDs,...Photonics.com 4/23/2024Biomonitoring SensorsThe SFH 7050A and SFH 7060A BIOFY® biomonitoring sensors from ams-OSRAM GmbH feature a small footprint and chip-on-board package. The sensors combine LEDs and photodiodes in one optical...Photonics.com 7/26/2022Photonics Handbook ArticlesDigital Still Cameras: The Changing Face of ImagingThe digital camera represents an integration of optics, mechanics and electronics consisting of three layers (Figures 1a, b and c). The top and the middle layers are printed circuit boards (PCBs),...Photonics HandbookFilters: Glossary, Equations, ParametersAttentuation Region (or Blocking) The spectral region over which very low transmission is required. Attenuation requirements are generally specified in percent transmission over a given spectral...Photonics HandbookAspheric Lenses: Optimizing the DesignWith the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...Photonics HandbookFlat Optics: Considerations When BuyingFlat optics generally perform three main functions: They transmit light (windows), reflect light (mirrors), and fold light (prisms). While most optical manufacturers make spherical and flat optics, a...Photonics HandbookWhite Papers“Fingerprint” vs Handheld Raman Applications and the Different Optical Filters That Enable ThemRaman spectroscopy is a powerful non-invasive, non-contact tool capable of identifying molecular constituents of samples. Wavelength selective optical filters are used to block the dominant Rayleigh...Photonics.com 4/28/2023Calibration Makes The DifferenceAs a leading manufacturer of light measurement technology, measurement quality has top priority at Instrument Systems. To this end, we operate an DAkkS accredited testing laboratory. There are hardly...Photonics.com 11/6/2023Telops New HD and Super HD Infrared CamerasHIGH-DEFINITION THERMAL INFRARED CAMERAS WITH UP TO 3 MEGAPIXELS. The HD and Super HD Series are high-performance thermal infrared cameras designed to provide unprecedented image quality with crisp...Photonics.com 7/12/2023Advantages of VPH GratingsThe term 'diffraction grating' often brings to mind a surface relief grating, with ruled lines and a delicate surface. A transmission grating, however, opens up many new options for the optical...Photonics.com 9/19/2022Webinars3D Printing Enables Agile Design for OCT Systems and ApplicationsOptical coherence tomography (OCT) is a biomedical optical imaging technique that uses low coherence interferometry to resolve backscattered light by depth. It has become a widely used technique for...Photonics.com 1/22/2021Automation in Microscopy Captures the Whole SampleKevin McCarthy explores recent advancements in motion control technology that improve the image quality, throughput, size, and cost of digital imaging systems. At the heart of many life science and...Photonics.com 1/22/2021Novel SWIR Detectors and Imagers Approaching the Thermodynamic Detection LimitPhoton detectors are now at the heart of many modern scientific, medical, industrial and security systems. These detectors, whether single-element or imaging arrays, are often the performance...Photonics.com 4/9/2015Get More Out of Your Optical MeasurementsMaximizing the information captured within optical measurements is the key to discovering smaller effects and observing faster processes. Both scales are at the heart of optical measurements, whether...Photonics.com 11/16/2021Photonics Dictionary Termsintensified charge-coupled device cameraAn intensified charge-coupled device (ICCD) camera is an advanced imaging device that combines the capabilities of both an image intensifier and a charge-coupled device (CCD) sensor to achieve...Photonics Dictionaryelectron multiplication charge-coupled device cameraAn EMCCD (electron-multiplying charge-coupled device) camera is a type of scientific camera specifically designed for low-light imaging applications that require high sensitivity and fast readout...Photonics DictionaryCCD cameraA CCD camera, or charge-coupled device camera, is a type of digital camera that utilizes a CCD image sensor to capture and record images. CCD cameras are widely used in various applications,...Photonics Dictionaryexcimer laser coronary angioplastyExcimer laser coronary angioplasty (ELCA) refers to a medical procedure used in the treatment of coronary artery disease. This technique involves the use of an excimer laser to perform angioplasty, a...Photonics DictionaryMediaPhotonic Silicon & 3-D Printable Optics - LIGHT MATTERS 04.03.2013-Shrinking OCT -Photonic Logic Gate -Intravascular OCT This week on Light matters: bulk silicon emits visible light, 3-D printable optics are open sourced, a European project aims to shrink light...Photonics.com 4/3/2013Laser Classroom & Spaghetti SERS - LIGHT MATTERS 09.04.2013-Spaghetti SERS -Light Heart -Laser Classroom This week on Light Matters: a spaghetti-like surface makes for stronger SERS sensors, light might replace electricity blasts to restore healthy...Photonics.com 9/4/2013Fluorescence Filter Set FITC DAPI - Optolong Optics Co. Ltd.Fluorescence filters like FISH products, single-band filters DAPI, FITC, TRITC, Texas Red, GFP, CFP, Cy5 are the other direction of Optolong. Filters we produce are with the dark background and bight...Photonics.com 4/19/2022Fluorescence Filter Images - Optolong Optics Co. Ltd.Optolong Optics Co. Ltd., brand owner of Optolong, is a manufacturer of fluorescence filters and astronomy filters. We also offer other interference filters including UV filters, visible filters, and...Photonics.com 4/19/2022Photonics Buyers' Guide CategoriesContrast Enhancement FiltersInfrared LensesAn infrared lens is an optical component specifically designed and optimized for transmitting, focusing, or manipulating IR radiation within the infrared spectrum. Infrared lenses are essential...Complex LensesA complex lens is a lens made up of a number of lens elements arranged into two or more groups.Missile- and Satellite-Borne OpticsCompaniesShanghai Optics Inc.ISO 9001 & ISO 13485 certified and D&B DUNS # 113515303 Shanghai Optics is an unparalleled custom system solution provider offering advance precision custom optical design, engineering,...Photonics Buyers' GuideReynard 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' 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' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' Guide