High-resolution 3D imaging is now possible over prolonged periods.ANDREW SAMUELSSON, OLYMPUS CORPORATION OF THE AMERICAS, SCIENTIFIC SOLUTIONS GROUPRefractive index mismatch, and resulting spherical aberration, has historically plagued researchers interested in long-term, live-cell imaging at high resolution. The use of silicone oil objectives helps mitigate this mismatch as the refractive index of live cells (n = 1.38) is much closer to that of silicone oil (n = 1.4) than that of either traditional immersion oil (n = 1.52) or water (n = 1.33). When used as an immersion medium, silicone oil greatly reduces spherical aberration, which is the inability of light rays to come to a single focal point in Z. As a result, brighter and...Read full articleRelated content from Photonics MediaARTICLESNIH 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 IssueSensata Acquires Elastic M2M: Week in Brief: 02/25/22Olympus has opened another discovery center, this one at the University of Montreal’s Center for Interdisciplinary Research on Brain and Learning. The facility will provide researchers access...Photonics.com 2/25/2022Modulator Expands 3D-Imaging Possibilities Using Standard CamerasA team at Stanford University has developed a device that that enables lidar functionality with ordinary CMOS image sensors. The device makes it possible to obtain 3D data from technology that, on...Photonics Spectra June 2022 IssueOlympus Opens Discovery Center: Week in Brief: 02/18/22Olympus opened the Olympus Discovery Center at Texas A&M Health to support research focused on treating, alleviating, and preventing human diseases. The facility provides researchers with access...Photonics.com 2/18/2022PRODUCTSLaser MicroscopeThe LEXT™ OLS5100 Laser Microscope from Olympus Corp. provides high levels of accuracy and precision for sub-μm 3D observation and surface roughness measurement in materials science. ...Photonics Spectra March 2021 IssueMicroscope CameraThe LC35 microscope camera from Olympus Corp. provides quality brightfield images in a cost-effective package. With a 3.5-MP CMOS sensor and versatile exposure times and resolution modes, the...Photonics Showcase April 2022 IssueMicroscope CamerasThe DP series of microscope cameras from Olympus Corp. share a suite of smart features and precise color accuracy to simplify industrial microscopy imaging. Microscope cameras are used to check...Photonics Spectra May 2021 IssueMonochrome Microscope CameraThe DP23M Monochrome Microscope Camera from Olympus Corp. provides premium fluorescence images in a cost-effective package. The camera’s sensitive back-side illuminated monochrome CMOS...BioPhotonics Jan/Feb 2022 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 HandbookThin-Film Coatings: A Buyers' Guide: The vast majority of optics used in precision scientific, industrial, biomedical, and military applications incorporate thin-film coatings on their surfaces. Therefore, it’s useful for almost anyone involved in the specification and purchase of optical components to have some familiarity with the typical performance characteristics, trade-offs and limitations of various coating types, as well as some knowledge of the capabilities of common thin-film production technologies. This article provides an objective overview of both these topics.What are thin-film coatings? The purpose of any optical thin-film coating is to modify the transmittance and reflectance properties of the substrate material to which they are applied. Most coatings...Photonics HandbookMeasuring Surface Roughness: The Benefits of Laser Confocal Microscopy: 3D imaging and ultrahigh resolution are ideal for the inspection of materials with defined surface finishes and textures.When evaluating the surface of a component, surface roughness can be assessed by eye or by rubbing it with a fingertip. Common expressions include “shiny,” “lusterless and...Photonics HandbookCamera Resolution: Combining Detector and Optics Performance: Most image-quality discussions center on resolution, which is thought to uniquely determine system performance. Resolution, however, is a more complex concept.Camera resolution depends upon the optical blur diameter and the detector size. Schade combined these to create an equivalent resolution that is a function of Fλ/d where F is the focal ratio,...Photonics HandbookWHITEPAPERSCharacterizing the temperature-induced evolution of the shape and texture of a silicon waferUsing Linkam’s precision temperature control chamber with Sensofar’s Linnik objective lens eliminates these problems and allows accurate measurement of 3D topographic profiles of nanoscale materials....Photonics.com 12/10/2021Surface Characterization of Tribological Coatings: Wear Properties, Thickness and RoughnessWith the S mart 3D profilometer, it is possible to more precisely measure the volume loss of the wear tracks after the friction and wear tests, since it measures the real shape of the wear track....Photonics.com 12/10/2021Characterization of Dry Electrolyte Polishing ProcessThe preservation of the form is demonstrated by complementary form measurements using Ai Focus Variation technique. S neox Five Axis is a versatile metrology tool that perfectly suits our measurement...Photonics.com 12/10/2021Camera-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 7/1/2020WEBINARSTechniques in Biophotonic ImagingFREE WEBINAR Sponsored by: Hamamatsu & Applied Scientific Instrumentation Additional Questions & Answers from the webinar are below: Dr. Kimani C. Toussaint Jr. Quantitative...Photonics.com 3/21/2013BioPhotonics Conference: October 26 - 28The publishers of BioPhotonics invite you to attend a free virtual conference spanning three days. The BioPhotonics Conference will feature insights and innovations in microscopy, spectroscopy, flow...Photonics.com 10/26/2021Advances in Rapid 3D Imaging of Large Tissue SamplesThis webinar will discuss rapid 3D, multiplexed imaging of large tissue samples, based on recent advances in light-sheet fluorescence microscopy, multiplexed molecular labeling, and optical tissue...Photonics.com 1/24/2019Photonics 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 6/9/2016PHOTONICS DICTIONARY TERMSplastic opticsThe integration of plastic materials into optical applications. When the materials are refined into lenses, prisms and mirrors, they serve the purpose of glass optics at a lower cost and a...EDU.photonics.com 3/24/2016metamaterialA material engineered from artificial matter not found in nature. The artificial makeup and design of metamaterials give them intrinsic properties not common to conventional materials that are...EDU.photonics.com 2/15/2013Murty interferometerA form of shearing interferometer that contains a simple wedged (plane-parallel) glass plate with a nonzero optical path difference to create interference between split optical wavefronts. The...EDU.photonics.com 3/5/2018semiconductor laserA semiconductor material which is designed and grown for the efficient production of short wavelength stimulated emission through high gain as well as low internal losses. Materials with band gap...EDU.photonics.com 3/5/2018MEDIALight Matters Extra: Taking Photonics Innovations from the Lab to the Operating Room - 01.2018In this month's Light Matters Extra, we give you an in-depth look at the relationship between researchers and scientists at the University of California Davis, and surgeons and clinicians at nearby...Photonics.com 1/18/2018Supporting 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 1/18/2018Bin Picking with Helios2 3D Time-of-Flight CameraWatch our extended Bin Picking video and learn how to improve your point cloud for challenging objects such as shiny metals and plastics. See how changes in image accumulation, exposure, gain,...Photonics.com 11/2/2020Capasso Group Revolutionizes Flat LensesResearchers at the Harvard John A. Paulson School of Engineering and Applied Sciences have developed a single flat lens that can focus the entire visible spectrum of light in the same spot and in...Photonics.com 7/5/2018PHOTONICS BUYERS' GUIDE CATEGORIESMicroscopy Immersion LiquidsLint-Free Lens TissueMagneto-Optic GlassOptical MaterialsOptical materials are materials that, by virtue of their optical characteristics, are used in optical elements.COMPANIESFOCtek 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' 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' GuideKnight OpticalWe are a trusted leading global figure in the production and distribution of scientific, stock and custom precision optics with over 30 years’ experience providing optical solutions for a huge...Photonics Buyers' GuideShanghai Optics Inc.Shanghai Optics is a leading manufacturer of advanced optical components and optical assemblies. Shanghai Optics is an unparalleled custom optical solution provider offering custom optical design and...Photonics Buyers' Guide