Advanced Optics SCHOTT AG Hattenbergstrasse 10 55122 Mainz Germany Phone +49 (0)6131/66-1812 [email protected] Optical Glass www.schott.com/ advanced_optics 2020 10430 ENGLISH 01/2020 kn/schmidt Printed in Germany SCHOTT Optical Glass 2020 Optical Glass 2020 Description of Properties 2 Table of Contents Part I · Optical Glass – Description of Properties Foreword . 8 2 Internal Quality . 28 2 .1 Striae . 28 What’s new? . 9 2 .2 Bubbles and Inclusions . 29 2 .3 Stress Birefringence . 31 Webshop . 14 3 Chemical Properties . 33 1 Optical Properties . 16 3 .1 Climatic Resistance . 33 1 .1 Refractive Index, Abbe Number, Dispersions, Glass Designations . 16 3 .2 Stain Resistance . 34 1 .2 Tolerances for Refractive Index and Abbe Number . 17 3 .3 Acid Resistance . 36 1 .3 Test Reports for Refractive Indices and Dispersions . 20 3 .4 Alkali and Phosphate Resistance . 37 1 .3 .1 Standard test reports . 20 3 .5 Identification of Visible Surface Changes . 38 1 .3 .2 Precision test certificates UV-VIS-IR . 20 3 .6 Environmental Aspects, RoHS and REACH . 39 1 .4 Refractive Index Homogeneity . 21 1 .4 .1 High Homogeneity Glass available from stock . 23 4 Mechanical Properties . 42 1 .5 Internal Transmittance, Color Code . 24 4 .1 Knoop Hardness . 42 1 .5 .1 i-Line glasses . 26 4 .2 Viscosity . 42 1 .6 Measurement Capabilities for Optical Properties . 27 4 .3 Coefficient of Linear Thermal Expansion . 43 TABLE OF CONTENTS 3 5 Thermal Properties . 44 8 Optical Glasses for Precision Molding . 65 5 .1 Thermal Conductivity . 44 5 .2 Heat Capacity . 44 9 Product Range of Optical Glasses . 67 9 .1 Preferred Glasses . 67 6 Delivery Quality . 45 9 .2 Inquiry Glasses . 67 6 .1 Quality Management and Quality Assurance . 45 6 .2 Standard Delivery Quality . 46 10 Collection of Formulas and Wavelength Table . 68 6 .3 Enhanced Delivery Quality . 46 11 Technical Information – TIE . 74 7 Forms of Supply and Tolerances . 49 7 .1 Raw Glass . 50 12 Application Notes . 75 7 .1 .1 Blocks . 50 12 .1 Optical Materials for Digital Projection . 75 7 .1 .2 Strips . 51 12 .2 Optical Glasses for Automotive Applications . 76 7 .2 Cut Blanks . 52 12 .3 Optical Glasses for Life Science Applications . 77 7 .2 .1 Plates . 52 12 .4 Optical Glasses in the Short-Wave Infrared Range . 78 7 .2 .2 Round plates . 54 12 .5 Optical Glasses for Machine Vision Applications . 79 7 .2 .3 Worked rods . 56 12 .6 Optical Glasses for High-End Surveillance Systems . 80 7 .2 .4 Cut prisms . 58 12 .7 Optical Glasses for Professional Movie Camera Lenses . 81 7 .3 Pressings . 60 7 .3 .1 Pressed blanks . 60 7 .3 .2 Pressed prisms . 62 7 .4 Optical Glass Rods for Miniaturized Ball Lenses, Discs & More! . 63 4 13 SCHOTT Advanced Optics at a Glance .................... 82 OPTICAL COMPONENTS................................ 88 Optical Components ................................... 88 OPTICAL MATERIALS ................................... 83 Aspherical Lenses...................................... 89 Optical Glass ......................................... 83 Spherical Lenses ...................................... 89 HT & HTultra Glass .................................... 84 Cylindrical Lenses ..................................... 89 XLD Glass ........................................... 84 Prisms .............................................. 90 High Homogeneity Glass................................ 84 Windows & Substrates ................................. 90 Low Tg Glass ......................................... 85 Coating ............................................. 90 i-Line Glass .......................................... 85 CNC Machining ...................................... 91 Radiation Resistant Glass ................................ 85 Assembly............................................ 91 Radiation Shielding Glass................................ 86 Ceramic Laser Phosphor Converters ....................... 91 Sapphire ............................................ 86 Active Glass for Laser Applications ......................... 92 Infrared Chalcogenide Glass ............................. 86 RealView® ........................................... 87 OPTICAL FILTERS...................................... 94 Optical Filter Glass..................................... 94 Interference Filters..................................... 96 TABLE OF CONTENTS 5 Part II · Optical Glass – Properties Change Index – Part II Optical Glass – Properties Section . 98 Properties . 100 Glossary . 142 Imprint ................................................ 144 6 List of Tables 1 Optical Properties 2 Internal Quality 1.1 Examples of glass codes ................................16 2.1 Tolerance limits for striae (grades according to 1.2 Tolerances for refractive index and Abbe number ISO 12123:2018/ISO 10110-18:2018 in parentheses)..........29 (grades according to ISO 12123:2018/ISO 10110-18:2018 2.2 Limit values for bubbles and inclusions in optical glasses in parentheses) .......................................17 (grades according to ISO 12123:2018 in parentheses) .........30 1.3 Tolerance for refractive index variation within a lot of fine 2.3 Limit values of stress birefringence in cut blanks for various annealed glass and within a lot of pressings (grades according dimensions (grades according to ISO 12123:2018/ to ISO 12123:2018/ISO 10110-18:2018 in parentheses) .......18 ISO 10110-18:2018 in parentheses) .......................32 1.4 Refractive index and dispersion information in standard test reports ..........................................20 3 Chemical Properties 1.5 Homogeneity of optical glass (grades according to 3.1 Classification of optical glasses in climatic resistance ISO 12123:2018/ISO 10110-18:2018 in parentheses)..........22 classes CR 1– 4........................................34 1.6 Stock of high homogeneity glasses and their available 3.2 Classification of optical glasses in stain resistance maximum dimensions and respective homogeneity grades......24 classes FR 0 – 5........................................35 1.7 Refractive index homogeneity of i-line glasses relative 3.3 Classification of optical glasses in acid resistance to their dimensions ...................................26 classes SR 1 – 53.......................................36 1.8 Overview of the measurement accuracy for the 3.4 Classification of the optical glasses in alkali resistance measurement procedures ...............................27 classes AR 1– 4 and phosphate resistance classes PR 1– 4 ........38 LIST OF TABLES AND FIGURES 7 List of Figures 6 Delivery Quality 1 Optical Properties 6 .1 Additional quality steps for various forms of supply . 47 1 .1 Delivery lot compilation of glass for hot processing and fine annealed glass . 19 7 Forms of Supply and Tolerances 1 .2 H3 quality on 870 mm aperture after focus subtraction 7 .1 Dimensional tolerances and minimum dimensions for plates . 53 (stitching of individual measurement) . 23 7 .2 Dimensional tolerances and minimum dimensions for round plates . 55 7 .3 Dimensions and tolerances for worked rods . 57 7 .4 Dimensions and tolerances for cut prisms . 59 7 .5 Dimensions and tolerances for pressed blanks . 61 7 .6 Dimensions and tolerances for pressed prisms . 62 7 .7 Optical glass rods – specifications . 64 10 Collection of Formulas and Wavelength Table 10 .1 Wavelengths for selecting frequently used spectral lines . 73 Cover Picture An application of digital projection is depicted on the cover of this version . In addition to high-quality optical glasses in prisms for color separation, such applications also use lenses, homogenizers, dichroic mirrors and innovative ceramic materials for light conversion . 8 Foreword SCHOTT Advanced Optics – Advanced Optics masters Your Partner for Excellence in Optics. the entire value chain: from customer-specific glass devel- SCHOTT is an international technology group that is active in the areas opment and its production of specialty glasses and glass-ceramics . The company has more than all the way to high-precision 135 years of outstanding development, materials and technology exper- optical product finishing, tise and we offer a broad portfolio of high-quality products and intelli- processing and measure- gent solutions, thus contributing to our customers’ success . ment . Today, SCHOTT’s Advanced Optics unit offers optical materials, For more information on Company founder: components and filters and has been a trailblazer for various applica- Advanced Optics, please Otto Schott (1851–1935) tions . With a product portfolio of over 120 optical glasses, special visit our website: materials (e .g . active laser glass, IR-Materials, sapphire), ultra-thin glass, http://www.us.schott.com/ high-precision optical components, wafers, and optical filter glasses, advanced_optics/english/index.html Advanced Optics develops customized solutions all over the world for applications in optics, lithography, astronomy, opto-electronics, life sciences, research, and more . FOREWORD | WHAT’S NEW? 9 What’s new? NEW SCHOTT Advanced Optics continues As the cover of this issue indicates, we have added a look at applica- to employ the highest quality standards tions for Optical Materials in Digital Projection (see chapter 12 .1) . and state-of-the-art methods in glass production . This allows us to offer our wide range of products We have included all recent updates to regulations concerning optical for optical and industrial applications with the glasses in line with ISO 12123:2018 and ISO 10110-18:2018 . tightest tolerances and the ability to meet changing