TS ISO 10110-6

TS ISO 10110-6 is part of the ISO 10110 series for preparing drawings of optical elements and systems, and it defines how centring and tilt tolerances are indicated on technical drawings. The standard supports a consistent drawing language for alignment-related requirements at the level of individual optical elements, subassemblies, and assemblies, so that these tolerances can be read and applied in a uniform way.

What centring and tilt mean in optical documentation

In general technical use, centring describes how accurately an optical surface or optical axis is positioned relative to the intended reference, while tilt describes angular deviation from the intended direction. In optics, both matter because small alignment errors can influence beam direction, image quality, and how well components work together in an assembled system. This part of ISO 10110 addresses the drawing indication of these tolerances; it does not describe the performance test method itself.

Surface types covered by the document

• Plano surfaces
• Rotationally invariant surfaces: spherical and aspherical surfaces
• Circular and non-circular cylindrical surfaces: cylindrical and acylindrical surfaces
• Non-symmetrical surfaces, referred to as general surfaces
• General surfaces are described using ISO 10110-19

As part of the ISO 10110 framework, this standard helps keep optical manufacturing documents readable and consistent across design, production, and inspection workflows. Its practical value is in making centring and tilt requirements explicit in the same technical notation system used throughout optical drawing practice.