International Organization for Standardization

Optics and photonics - Electronic exchange of optical data - Part 1: NODIF information model - Second Edition
 N 25297-1

Annotation

This part of ISO 25297 specifies the information requirements for optical systems and parts, and provides an information model to support the processes of optical design, optical evaluation and analysis for these optical systems and parts when using computers with CAD and CAE.

NOTE Generally, an optical system means an optical unit as an optical product, which performs optical functions, and is composed of optical elements and the barrels in which these elements are mounted. In this part of ISO 25297, an optical system is a collection of optical parts and optical assemblies, e.g. the viewfinder system or the taking lens system of a leaf shutter camera.

This information model adds the data peculiar to optical design specification based on STEP to ISO 10303 (all parts). The additional information is product specification information, optical design information, optical evaluation information and analysis information.

This part of ISO 25297 is generically called the Neutral Optical Data Interchange Format (NODIF).

The following are within the scope:

— information on product specification, optical design, optical evaluation and analysis;

— optical systems and parts in imaging systems, such as cameras and copiers, viewing systems for telescopes and microscopes and the other optical systems, such as projectors and pick-up lenses; —

— multiple-configuration optical systems, including zoom lenses and inner focusing systems;