TS ISO 9211-1

TS ISO 9211-1 is the Turkish edition of the vocabulary standard for optical coatings. It establishes a common technical language for the terms used in this field, organizing them by function, by common coating imperfections, and by other related definitions. In practical use, that means coating characteristics, specification wording, and performance-related discussion can be described with consistent terminology.

How the terms are organised

The document groups optical-coating terminology into four classes: terms and definitions, definitions of coatings by function, definitions of common coating imperfections, and other definitions. This structure helps distinguish functional categories such as reflective, transmissive, or filtering coatings from defect-related concepts and other supporting terminology. As a vocabulary standard, it clarifies meaning rather than prescribing product performance requirements.

Technical context for optical coatings

In general technical terms, optical coatings are thin-film layers applied to components and substrates to control the way light interacts with a surface. Depending on the design, they can alter reflectance, transmittance, absorption, polarization behaviour, or wavelength selectivity. That is why consistent terminology matters in optics, imaging, sensors, lasers, and other precision optical systems, where small differences in wording can affect interpretation of a specification.

The standard also identifies surface treatments of components and substrates and provides a standard form for their specification, while noting general characteristics and test and measurement methods where necessary. It is not intended to define the coating process itself. Ophthalmic optics, such as spectacle applications, are excluded, so the focus remains on optical components and their coatings rather than eyewear.

• Provides shared terminology for optical coatings.
• Separates functional definitions from defect-related terms.
• Supports clear specification of coated components and substrates.
• Excludes ophthalmic optics such as spectacles.
• Focuses on naming and classification, not on process methods.