Enabling the Production of Aspheric Glass Lenses with Diffractive Structures K
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Volume 97, Number 5, September-October 1992 Journal of Research of the National Institute of Standards and Technology Contents Articles The Characterization of a Piston Displacement-Type G. E. Mattingly 509 Flowmeter Calibration Facility and the Calibration and Use of Pulsed Output Type Flowmeters A General Waveguide Circuit Theory Roger B. Marks and 533 Dylan F. Williams Resistive Liquid-Vapor Surface Sensors for Liquid J. D. Siegwarth, R. 0. Voth, 563 Nitrogen and Hydrogen and S. M. Snyder Fracture Toughness of Advanced Ceramics George D. Quinn, Jonathan 579 at Room Temperature Salem, Isa Bar-on, Kyu Cho, Michael Foley, and Ho Fang Errata Erratum: Optical Calibration of a Submicrometer Jon Geist, Barbara Belzer, 609 Magnification Standard Mary Lou Miller, and Peter Roitman ConferenceReports Data Administration Management Association Symposium Judith Newton 611 News Briefs GENERAL DEVELOPMENTS 615 Consortium to Develop Ceramic Machining Data Industry/NIST to Improve Advanced Polymer Systems Frequency Calibrations Using LORAN-C Explained Technology Centers Created for California, Minnesota 616 CRADA Partners to Study Concrete Failure During Fire Have You Heard? New Noise Standard Developed "Superconductivity Report" Now Available on VHS Two Views of Protein Puzzles Prove Better Than One Volume 97, Number 5, September-October 1992 Journal of Research of the National Institute of Standards and Technology New Biosensor Consortium Seeks Members 617 NIST/Industry to Study Cryptography Infrastructures Standards Needs on Diamond Films Cited -
Diamond Machining of Silicon: a Review of Advances in Molecular Dynamics Simulation
Diamond machining of silicon: A review of advances in molecular dynamics simulation Goel, S., Luo, X., Agrawal, A., & Reuben, R. L. (2015). Diamond machining of silicon: A review of advances in molecular dynamics simulation. International Journal of Machine Tools and Manufacture, 88, 131-164. https://doi.org/10.1016/j.ijmachtools.2014.09.013 Published in: International Journal of Machine Tools and Manufacture Document Version: Peer reviewed version Queen's University Belfast - Research Portal: Link to publication record in Queen's University Belfast Research Portal Publisher rights Copyright 2014 Elsevier This is the author’s version of a work that was accepted for publication in International Journal of Machine Tools and Manufacture. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Machine Tools and Manufacture, [VOL 88, (January 2015)] doi:10.1016/j.ijmachtools.2014.09.013 General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. -
Bullseye Glass Catalog
CATALOG BULLSEYE GLASS For Art and Architecture IMPOSSIBLE THINGS The best distinction between art and craft • A quilt of color onto which children have that I’ve ever heard came from artist John “stitched” their stories of plants and Torreano at a panel discussion I attended a animals (page 5) few years ago: • A 500-year-old street in Spain that “Craft is what we know; art is what we don’t suddenly disappears and then reappears know. Craft is knowledge; art is mystery.” in a gallery in Portland, Oregon (page 10) (Or something like that—John was talking • The infinite stories of seamstresses faster than I could write). preserved in cast-glass ghosts (page 25) The craft of glass involves a lifetime of • A tapestry of crystalline glass particles learning, but the stories that arise from that floating in space, as ethereal as the craft are what propel us into the unknown. shadows it casts (page 28) At Bullseye, the unknown and oftentimes • A magic carpet of millions of particles of alchemical aspects of glass continually push crushed glass with the artists footprints us into new territory: to powders, to strikers, fired into eternity (page 31) to reactive glasses, to developing methods • A gravity-defying vortex of glass finding like the vitrigraph and flow techniques. its way across the Pacific Ocean to Similarly, we're drawn to artists who captivate Emerge jurors (and land on the tell their stories in glass based on their cover of this catalog) exceptional skills, but even more on their We hope this catalog does more than point boundless imaginations. -
Download the 2018 / 2019 Print Catalog
MOUNTAIN GLASS 2018/19 PRODUCT GUIDE MountainGlass.com 866.LAMPWORK 828.225.5599 [email protected] Order by 2:30 pm EST for guaranteed same day order shipment Artists: Shawn Henderson @hendyglass & Zariel Shore @zshoreglass • Photo: @lukewaynemedia Asheville, NC • Open Monday – Friday • 10 am to 6 pm EST At Mountain Glass we believe in conservation & preservation of our natural resources. Here is what we are doing about it. In cooperation with American Forests we will have a tree planted for every order of over $100. Over 45,000 trees planted to date! MOUNTAIN GLASS OPERATES ON 100% GREEN POWER With help from NC GreenPower Mountain Glass is now annually supporting 88,800 kWh of cleaner, renewable energy. The amount of coal consumed annually to produce this equivalent amount of energy is 71,928 lbs. (UPDATED 1/8/16) As calculated by NC Greenpower The generation of this amount of renewable energy will annually offset: • 12,000 pounds of carbon dioxide (CO2) • 37 pounds of sulfur dioxide (SO2) • 15 pounds of nitrogen oxides (NOx) The annual reduction of CO2 emissions is environmentally equivalent to: • 17,010 miles not driven OR • 413 days not driven OR • 923 trees planted By partnering with TerraPass all of our outgoing truck shipments are carbon neutral. Our glass case size shipping boxes are made with 33% recycled content! NC GREENPOWER is a statewide effort to improve the environment by using “green power,” Our office paper contains 30% recycled content electricity generated from renewable resources such as solar, wind, biomass and water. The and we recycle all paper, paperboard packaging, cardboard, glass & aluminum here in our building! non-profit NC GreenPower organization is the result of collaboration among electric utilities, environmentalists, state regulators and energy generators. -
Design and Fabrication of Nonconventional Optical Components by Precision Glass Molding
Design and Fabrication of Nonconventional Optical Components by Precision Glass Molding DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of the Ohio State University By Peng He Graduate Program in Industrial and Systems Engineering The Ohio State University 2014 Dissertation Committee: Dr. Allen Y. Yi, Advisor Dr. Jose M. Castro Dr. L. James Lee Copyright by Peng He 2014 Abstract Precision glass molding is a net-shaping process to fabricate glass optics by replicating optical features from precision molds to glass at elevated temperature. The advantages of precision glass molding over traditional glass lens fabrication methods make it especially suitable for the production of optical components with complicated geometries, such as aspherical lenses, diffractive hybrid lenses, microlens arrays, etc. Despite of these advantages, a number of problems must be solved before this process can be used in industrial applications. The primary goal of this research is to determine the feasibility and performance of nonconventional optical components formed by precision glass molding. This research aimed to investigate glass molding by combing experiments and finite element method (FEM) based numerical simulations. The first step was to develop an integrated compensation solution for both surface deviation and refractive index drop of glass optics. An FEM simulation based on Tool-Narayanaswamy-Moynihan (TNM) model was applied to predict index drop of the molded optical glass. The predicted index value was then used to compensate for the optical design of the lens. Using commercially available general purpose software, ABAQUS, the entire process of glass molding was simulated to calculate the surface deviation from the adjusted lens geometry, which was applied to final mold shape modification. -
High-Precision Micro-Machining of Glass for Mass-Personalization and Submitted in Partial Fulfillment of the Requirements for the Degree Of
High-precision micro-machining of glass for mass-personalization Lucas Abia Hof A Thesis In the Department of Mechanical, Industrial and Aerospace Engineering Presented in Partial Fulfillment of the Requirements For the Degree of Doctor of Philosophy (Mechanical Engineering) at Concordia University Montreal, Québec, Canada June 2018 © Lucas Abia Hof, 2018 CONCORDIA UNIVERSITY School of Graduate Studies This is to certify that the thesis prepared By: Lucas Abia Hof Entitled: High-precision micro-machining of glass for mass-personalization and submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Mechanical Engineering) complies with the regulations of the University and meets the accepted standards with respect to originality and quality. Signed by the final examining committee: ______________________________________ Chair Dr. K. Schmitt ______________________________________ External Examiner Dr. P. Koshy ______________________________________ External to Program Dr. M. Nokken ______________________________________ Examiner Dr. C. Moreau ______________________________________ Examiner Dr. R. Sedaghati ______________________________________ Thesis Supervisor Dr. R. Wüthrich Approved by: ___________________________________________________ Dr. A. Dolatabadi, Graduate Program Director August 14, 2018 __________________________________________________ Dr. A. Asif, Dean Faculty of Engineering and Computer Science Abstract High-precision micro-machining of glass for mass- personalization Lucas Abia Hof, -
Three Meter Capacity Diamond Turning Machine for X-Ray Telescope Components
Dallas Optical Systems, Inc. NASA RFI Solicitation: NNH11ZDA018L Three Meter Capacity Diamond Turning Machine For X-Ray Telescope Components Enabling Technology: A 3 meter capacity diamond turning machine will be enabling technology for low cost fabrication of x-ray telescope optical components. Three Meter Capacity Diamond Turning Machine For X-Ray Telescope Components Submitted by: John M. Casstevens, President email: [email protected] Dallas Optical Systems, Inc. 1790 Connie Lane Rockwall, Texas 75032-6708 The technology readiness level (TRL) for this technology is 5 to 6. Based on previous experience of building a similar machine and facility the rough order of magnitude cost to establish the proposed capability to manufacture and certify x-ray mirror glass slumping mandrels meeting IXO specifications will not exceed $300M. Identification and Significance of the Enabling Technical Innovation The ranking of IXO as the fourth-priority large space mission in the National Academy Astro2010 Decadal Report reflects the technical, cost, and programmatic uncertainties associated with the project at the current time. A major emphasis in achieving a successful IXO is reducing the cost of the grazing incidence mirrors. Diamond turning has been proven to be able to produce highly aspheric optical contours to visible wavelength tolerances with extremely smooth surfaces. Diamond turning has the additional enabling capability to not only produce extremely smooth and accurate optical surfaces but also mechanical attachment surfaces and datums which allow extremely fast and complex optical components to be quickly and easily aligned. The productivity of diamond turning allows the production of quantities of optical components with exacting duplication of optical surfaces and metrology datums. -
Diamond Turning of Glassy Polymers
Diamond turning of glassy polymers Citation for published version (APA): Gubbels, G. P. H. (2006). Diamond turning of glassy polymers. Technische Universiteit Eindhoven. https://doi.org/10.6100/IR613637 DOI: 10.6100/IR613637 Document status and date: Published: 01/01/2006 Document Version: Publisher’s PDF, also known as Version of Record (includes final page, issue and volume numbers) Please check the document version of this publication: • A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. -
Fusing Fusing
® Artist Robert Wiener FusingFusing ToolsTools && AccessoriesAccessories ProductProduct CatalogCatalog www.dlartglass.com © 2019 D&L Art Glass Supply © 2019 D&L Art Glass Artist Nancy Bonig 303.449.8737 • 800.525.0940 Table of Contents About the Artwork Cover - Artist: Robert Wiener, DC Art Glass Series: Colorbar Murrine Series Title: Summer Salsa Size: 6" square (approx.) Website: www.dcartglass.com Photographer: Pete Duvall Table of Contents- Alice Benvie Gebhart Title: Distant Fog Size: 6 x 8" Website: www.alicegebhart.com Kilns ..........................................................................1-16 Tabletop Kilns .......................................................................................................... 1–3 120 Volt Kilns ............................................................................................................1-5 240 Volt Kilns ........................................................................................................ 6-12 Kiln Controllers at a Glance .....................................................................................13 Kiln Shelves .......................................................................................................... 14–15 Kiln Furniture and Accessories ................................................................................16 Kiln Working Supplies ....................................... 17-20 Primers & Shelf Paper ...............................................................................................17 Fiber Products & Release -
A NEW TECHNIQUE in GLASS ART JOANNE MITCHELL a Thesis Su
PRECISION AIR ENTRAPMENT THROUGH APPLIED DIGITAL AND KILN TECHNOLOGIES: A NEW TECHNIQUE IN GLASS ART JOANNE MITCHELL A thesis submitted in partial fulfilment of the requirements of the University of Sunderland for the degree of Doctor of Philosophy August 2015 Precision Air Entrapment through Applied Digital and Kiln Technologies: A New Technique in Glass Art Joanne Mitchell PhD 2015 1 Precision Air Entrapment through Applied Digital and Kiln Technologies: A New Technique in Glass Art Joanne Mitchell 2015 Abstract The motivation for the research was to expand on the creative possibilities of air bubbles in glass, through the application of digital and kiln technologies to formulate and control complex air entrapment, for new configurations in glass art. In comparison to glassblowing, air entrapment in kiln forming glass practice is under-developed and undocumented. This investigation has devised new, replicable techniques to position and manipulate air in kiln-formed glass, termed collectively as Kiln-controlled Precision Air Entrapment. As a result of the inquiry, complex assemblages of text and figurative imagery have been produced that allow the articulation of expressive ideas using air voids, which were not previously possible. The research establishes several new innovations for air-entrapment in glass, as well as forming a technical hypotheses and a practice-based methodology. The research focuses primarily on float glass and the application of CNC abrasive waterjet cutting technology; incorporating computer aided design and fabrication alongside more conventional glass-forming methods. The 3-axis CNC abrasive waterjet cutting process offers accuracy of cut and complexity of form and scale, across a flat plane of sheet glass. -
PRECISION DIAMOND TURNING of AEROSPACE OPTICAL SYSTEMS the Environment Housing the Diamond Turning Lathe Should Be Maintained to ± 0.01°F
PRACTICE NO. PD-ED-1265 PAGE 1 OF 4 PREFERRED PRECISION DIAMOND TURNING OF RELIABILITY PRACTICES AEROSPACE OPTICAL SYSTEMS Guideline: Meticulous control of vibration, environmental factors, and machining parameters are required to produce precision diffractive, refractive, reflective and hybrid optical components for aerospace applications. Benefits: Highly reliable diffractive, refractive, reflective, and hybrid aerospace optical systems can be produced by a meticulously controlled and protected diamond turning process. The result can be rugged, temperature-compensating achromatic precision optical elements suitable for a wide variety of applications. Center to Contact for More Information: Marshall Space Flight Center (MSFC) Implementation: Diamond turning is a well-established fabrication process for shaping high quality optical surfaces on metals, polymers, and crystals. Diamond turning has the capability of precision machining with a single point cutting tool to an accuracy of a fraction of a wavelength of light which makes it suitable for fabricating lenses. The surface finish quality of diamond turning is satisfactory for optical components in the mid to long wavelength regions of the infrared spectrum. Diamond machining can be beneficial for metal mirrors because of the ability to machine a reflective surface directly onto a structural substrate which may contain mounting bosses, alignment flanges, and rib reinforcements. The precision to which components can be machined is partially dependant upon the extent to which the dynamic motion of the machine tool can be controlled with the work piece. The detrimental dynamics of the diamond turning machine can be minimized by stiffening the machine, or mounting it on a vibration isolating mount. Vibration can be reduced by mounting the machine on a block of granite, or in-ground concrete blocks surrounded with vibration isolation material. -
Understanding Aging in Chalcogenide Glass Thin Films Using Precision Resonant Cavity Refractometry
Understanding aging in chalcogenide glass thin films using precision resonant cavity refractometry The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Geiger, Sarah et al. "Understanding aging in chalcogenide glass thin films using precision resonant cavity refractometry." Optical Materials Express 9, 5 (April 2019): 2252-2263 © 2019 Optical Society of America As Published http://dx.doi.org/10.1364/ome.9.002252 Publisher Optical Society of America (OSA) Version Final published version Citable link https://hdl.handle.net/1721.1/128287 Terms of Use Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. Research Article Vol. 9, No. 5 / 1 May 2019 / Optical Materials Express 2252 Understanding aging in chalcogenide glass thin films using precision resonant cavity refractometry SARAH GEIGER,1,2,5 QINGYANG DU,2 BIN HUANG,2 MIKHAIL Y. SHALAGINOV,2 JÉRÔME MICHON,2 HONGTAO LIN,3 TIAN GU,2 ANUPAMA YADAV,4 KATHLEEN A.RICHARDSON,4 XINQIAO JIA,1 AND JUEJUN HU2,6 1Materials Science and Engineering Department, University of Delaware, 201 DuPont Hall, Newark, DE 19716, USA 2Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA 3College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou, China 4CREOL, The College of Optics and Photonics, University of Central Florida, 4304 Scorpius Street, Orlando, FL 32816-2700, USA [email protected] [email protected] Abstract: Chalcogenide glass (ChG) thin films have a wide range of applications in planar photonics that rely on the stability of their optical properties.