PD ISO/TR 21477:2017
Current
The latest, up-to-date edition.
Optics and photonics. Preparation of drawings for optical elements and systems. Surface imperfection specification and measurement systems
27-09-2017
This document intends to guide the user to understand the origins, meanings and differences between the two systems of specifying and evaluating surface imperfections in ISO10110‑7 and ISO14997 , specifically the dimensional method and the visibility method, and to provide information on how to use them. Tables are provided to show specifications of roughly equivalent yield loss for imperfections in the two systems.
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.