Overview
IEC 63145-20-10:2019 - Eyewear display - Part 20-10: Fundamental measurement methods - Optical properties - specifies standard measurement conditions and measurement methods for determining the optical properties of eyewear displays. It applies to both non-see-through (VR goggles) and see-through (AR glasses) that use virtual image optics. Contact lens‑type displays and retina direct projection displays are explicitly out of scope.
This standard establishes how to measure optical attributes such as luminance, chromaticity, contrast, field of view (FOV) and eye‑box, under defined environmental and instrument conditions, enabling consistent, repeatable test data for design, quality control and comparison.
Key Topics and Technical Requirements
The document details the following core topics and requirements:
- Standard measurement conditions
- Environmental conditions, power supply, warm‑up time and dark‑room requirements.
- Measurement systems and coordinate systems
- Defined spherical and Cartesian coordinate systems for angular measurements.
- Measurement equipment
- Requirements for a Light Measuring Device (LMD), stage and setup conditions, and entrance pupil considerations.
- Test patterns and measuring points
- Use of checkerboard and solid colour patterns with multi‑point measurement grids.
- Optical measurement methods
- Procedures, calculations and reporting for:
- Luminance and luminance uniformity (non‑uniformity)
- Chromaticity and colour gamut
- Chromaticity uniformity
- Contrast ratio
- Field of view (FOV)
- Eye‑box based on luminance
- Pixel angular density
- Annexes
- Informative methods for estimating the eye point and explanations of measurement results (visual field and geographic coordinate charts).
The standard emphasizes both measurement procedure (how to capture data) and calculation/reporting (how to compute metrics and present results).
Practical Applications and Users
IEC 63145-20-10 is directly useful to:
- Display and eyewear manufacturers - for R&D, optical performance verification and production QA of VR and AR systems.
- Test laboratories and certification bodies - to provide repeatable, comparable optical test reports.
- Component suppliers and system integrators - to validate optics, microdisplays and waveguides against standard metrics.
- Procurement and regulatory teams - to specify objective optical requirements in purchase contracts or compliance documents.
Using the standard helps reduce ambiguity when comparing devices, improving interoperability and informing ergonomic and human‑factors decisions (eye‑box sizing, FOV trade‑offs, perceived image quality).
Related Standards
- Part of the IEC 63145 series (Eyewear display). Consult other parts of IEC 63145 and publications from IEC TC 110 (Electronic displays) for related measurement and performance guidance.
Keywords: IEC 63145-20-10, eyewear display, optical properties, measurement methods, VR goggles, AR glasses, luminance, chromaticity, field of view, eye-box.