ISO 10110-12-2019 PDF

Full title and description

Optics and photonics — Preparation of drawings for optical elements and systems — Part 12: Aspheric surfaces. This International Standard specifies the rules and conventions for presenting, dimensioning and indicating aspheric surfaces (including low-order symmetric forms such as cylinders and toroids) on technical drawings used for optical elements and systems.

Abstract

ISO 10110-12:2019 defines the mathematical description, coordinate systems and sign conventions for aspheric surfaces used in ISO 10110 drawing indications. It gives rules for presentation of aspheric and other low-order symmetric surfaces in the ISO 10110 series and clarifies exclusions (for example it does not apply to off-axis aspheric or discontinuous surfaces such as Fresnel surfaces or gratings). The document does not specify test methods for conformity.

General information

• Status: Published (current edition published and confirmed by ISO).
• Publication date: 26 November 2019 (Edition 3, 2019-11).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 37.020 (Optical equipment); 01.100.20 (Mechanical engineering drawings).
• Edition / version: Edition 3 (2019).
• Number of pages: 26 pages (ISO edition text).

Scope

Specifies rules for the presentation of aspheric surfaces and low-order symmetric surfaces (cylinders, toroids) in ISO 10110 drawings, including mathematical descriptions, coordinate systems and sign conventions. Excludes off-axis aspherics and discontinuous surfaces such as Fresnel surfaces and gratings (see ISO 10110-19 for non-symmetric/general surfaces). The standard is concerned with drawing indications only and does not prescribe testing or manufacturing methods.

Key topics and requirements

• Mathematical description of aspheric surfaces (standardized equations and parameters used to define aspheres on drawings).
• Coordinate system and origin conventions for aspheric surface definition.
• Sign conventions for radii, vertex positions and surface sag.
• Graphical presentation rules and recommended drawing indications for tolerances and related data (consistent with the ISO 10110 series).
• Explicit exclusions and references to other ISO 10110 parts for surfaces not covered (off-axis, discontinuous, diffractive, general surfaces).

Typical use and users

Used by optical engineers, lens designers, technical illustrators, CAD/drafting professionals, optical manufacturers and quality/inspection teams to create unambiguous, internationally consistent drawings for aspheric optical components. It is applied during design definition, production drawings and inspection documentation to ensure consistent interpretation of surface form and tolerances across suppliers and clients.

Related standards

Part of the ISO 10110 series (Preparation of drawings for optical elements and systems). Closely related parts include ISO 10110-1 (General rules and layout), ISO 10110-14 (Wavefront deformation tolerance), ISO 10110-16 (Diffractive surfaces) and ISO 10110-19 (General surfaces / non‑symmetric surfaces). ISO 10110-12:2019 replaces the 2007 edition of ISO 10110-12.

Keywords

aspheric surfaces; asphere; optics drawings; ISO 10110; drawing indications; coordinate system; sign convention; optical surface definition; lens manufacturing; optical tolerancing

FAQ

Q: What is this standard?

A: ISO 10110-12:2019 is the part of the ISO 10110 series that provides rules for presenting and indicating aspheric and low-order symmetric surfaces on technical drawings for optical elements and systems.

Q: What does it cover?

A: It covers mathematical descriptions, coordinate and sign conventions, and recommended drawing indications for aspheric surfaces. It does not cover off-axis aspherics, Fresnel or grating-like discontinuous surfaces, nor does it specify test methods.

Q: Who typically uses it?

A: Optical designers, lens manufacturers, drafting and CAD personnel, inspection and quality engineers — anyone who prepares or interprets engineering drawings for aspheric optical components.

Q: Is it current or superseded?

A: The 2019 edition (Edition 3) is the current ISO edition of part 12 and supersedes the 2007 edition. ISO standards are normally reviewed on a five‑year cycle; users should check with ISO or their national standards body for any amendments or subsequent confirmations.

Q: Is it part of a series?

A: Yes — ISO 10110 is a multipart series covering drawing indications for optical elements and systems. Part 12 is one part (aspheres) and is referenced alongside other parts (for example Part 1 general rules, Part 14 wavefront deformation, Part 16 diffractive surfaces, Part 19 general/non‑symmetric surfaces).

Q: What are the key keywords?

A: Asphere, aspheric surface, optical drawing, ISO 10110, coordinate system, sign convention, surface definition, drawing indications, optical tolerancing.