What is ISO 10110‑1-Preparation of drawings for optical elements and systems about?  
ISO 10110‑1 specifies the general layout of drawings and provides examples of indications in the ISO 10110 series, which standardizes drawing indications for optical elements and systems.
ISO 10110‑1 specifies the presentation in drawings of the characteristics, including the tolerances, of optical elements and systems. ISO 10110‑1 also includes the popular tabular format, formerly presented in ISO 1011010. This tabular format, now described in 5.1, is the preferred format for ISO 10110 drawings.
Rules for the preparation of technical drawings as well as for dimensioning and tolerancing are given in various ISO Standards. These general standards apply to optical elements and systems only if the necessary rules are not given in the various parts of ISO 10110. 
Who is ISO 10110‑1-Preparation of drawings for optical elements and systems for? 
ISO 10110‑1 on Preparation of drawings for optical elements and systems on is useful for: 
- Optics industry
- Manufacturers of optical elements
- Optical researchers
- Quality assessment labs
- Designers of optical elements 
Why should you use ISO 10110‑1-Preparation of drawings for optical elements and systems?  
ISO 101101 provides the preferred layout of a drawing of optical elements or subassemblies is in tabular format for ease of use. All of the rules regarding line type, notation, and symbology given below apply to drawings in a tabular format, unless they are explicitly contradicted by this part of the standard. 
ISO 10110‑1 gives information about the drawing field, table field, title field, etc. ISO 10110‑1 also provides information about dimensions such as radius of curvature, thickness, and diameter of the lens. ISO 10110‑1 also provides guidance on sharp edges, functional bevels, linear dimensions, angles, special surfaces which help in designing and preventing chipping of sharp edges and corners during production and handling.
If the drawings are done in compliance with ISO 10110‑1, they will be more likely to be understood worldwide.  
What’s changed since the last update?
ISO 101101:2019 supersedes BS ISO 1011010:2004 and BS ISO 101101:2006, which are withdrawn. This third edition cancels and replaces ISO 101101:2006 and ISO 1011010:2004, which have been technically revised and merged into one single document.
The main changes compared to the previous edition are as follows:
- Drawing scale and the reference wavelength are required to be included on the drawing
- provisions have been added to allow coordinate systems to be defined for each surface and for the part as a whole
- new tabular formats have been added to allow more surfaces on a tabular drawing, partially tabulated drawings, and new types of assembly drawings
- in addition, many more examples of drawings and notations have been provided
- and various detailed notes have been added, and corrections and modifications have been made for improved clarity 
