IS0 10110-4 : 1997 ISO INTERNATIONAL STANDARD 10110-4 First edition 1997-08-01 Optics and optical instruments Preparation of drawings for optical elements and systems - Part 4: Material imperfections - Inhomogeneity and striae Optique et instruments d'optique - Indications sur les dessins pour éléments et systemes optiques - Partie 4: Imperfections des materiaux - Hétérogéneite et stries ISO Reference number ISO 10110-4:1997(E) IS0 10110-4:1997 Contents Page Foreword ii Scope 1 1 2 Definitions 1 3 Specification 1 Indication in drawings 4 1 Annex A (informative) Bibliography 8 Figure 1 - Example of inhomogeneity and striae tolerance indication 2 Table 1 Inhomogeneity classes 1 Table 2 2 - Classes of striae 1 Descriptors: Optics, optical equipment, drawings, technical drawings, presentation, imperfections, refractive index. ii @ BSI 04-2000 ISO 10110-4:1997 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 10110-4 was prepared by Technical Committee ISO/TC 172, Optics and optical instruments, Subcommittee SC 1, Fundamental standards. ISO 10110 consists of the following parts, under the general title Optics and optical instrumentsPreparation of drawings for optical elements and systems: -Part 1: General; Part 2: Material imperfections - Stress birefringence; Part 3: Material imperfections - Bubbles and inclusions; Part 4: Material imperfections - Inhomogeneity and striae; 一 Part 5: Surface form tolerances; Part 6: Centring tolerances; Part 7: Surface imperfection tolerances; Part 8: Surface texture; - Part 9: Surface treatment and coating; Part 10: Table representing data of a lens element; Part 11: Non-toleranced data; Part 12: Aspheric surfaces; - Part 13: Laser irradiation damage threshold. Annex A of this part of ISO 10110 is for information only. @ BSI 04-2000 ii