TS ISO 10110-6

TS ISO 10110-6 is the standard for presenting centring tolerances on technical drawings for optical elements and optical systems. In optical design, centring describes how accurately a surface, component, or subassembly is aligned with the optical axis, so a consistent drawing convention is essential for manufacturing and inspection to interpret the requirement in the same way.

What centring tolerances mean in optical engineering

In general technical terms, centring tolerance is used to control alignment error in lenses, prisms, mirrors, or optical groups. Even small centring deviations can influence image quality, beam direction, and overall system performance. This standard defines the drawing rules for expressing such requirements, helping designers communicate intent clearly to manufacturers and inspection personnel.

Why a dedicated drawing convention matters

• Optical elements often function within subassemblies and larger systems, so centring information has to be communicated consistently across different levels.
• Correct symbols and layout on the drawing make it clear which surface, axis, or reference the tolerance applies to.
• This part supports a measurable and inspectable language for optical and photonic drawing practice.

This document belongs to the ISO 10110 series, which provides a common framework for the preparation of drawings of optical elements. Used alongside the other parts of the series, it helps align design, production, and quality-control practice around the same drawing logic. Its focus is the presentation of centring tolerances; it does not, by itself, define all design requirements or the full performance specification of optical products.

This listing represents a withdrawn edition, so it remains useful as an archival technical reference. In optical design, precision manufacturing, and inspection work, the correct interpretation of centring notation is still an important technical concern.