Overview
IEC 62629-62-11:2022 - 3D display devices, Part 62-11: Measurement methods for virtual-image type – Optical specifies standard measuring conditions and measurement procedures to determine the optical properties of virtual-image 3D displays (for example, head‑up displays). The standard covers how to characterize the virtual image that is optically superimposed on the outside world (the virtual-image plane) and defines measurement concepts such as the eye-box, virtual image distance, field of view and optical uniformity. Eye‑wear type displays are explicitly out of scope.
Key topics and technical requirements
The standard defines measurement systems, setups and reporting practices for optical evaluation of virtual‑image 3D displays, including:
- Measurement systems and setup
- Requirements for measuring devices and imaging light-measuring detectors (imaging LMDs)
- Definition of the eye‑box and how to determine its geometry
- Geometric properties
- Procedures for measuring virtual image distance, look‑down / look‑over angles, and field of view (FOV)
- Methods to estimate measuring point positions and measure geometric distortion
- Optical performance
- Luminance and chromaticity measurement procedures across the eye‑box and on the virtual‑image plane
- Measurement and reporting of luminance drop, contrast, and color coordinates
- 3D-specific characteristics
- Methods for measuring distance between a user and a 3D virtual object
- Test methods for static crosstalk and multi‑perspective luminance profiles
- Calibration and reporting
- Guidance on calibration of imaging LMDs and standardized reporting templates for results
Practical applications - who uses IEC 62629-62-11
This standard is intended for organizations involved in the design, verification and certification of virtual-image 3D display systems:
- Automotive and aerospace OEMs and suppliers developing head‑up displays (HUDs)
- Display manufacturers and optical subsystem integrators
- Test laboratories and conformity assessment bodies performing optical characterization
- R&D teams working on augmented reality (AR) optics that use virtual-image superposition (excluding wearable eyewear)
- Systems engineers validating FOV, luminance uniformity, geometric distortion and 3D object placement
Using IEC 62629-62-11 helps ensure reproducible, comparable optical measurements for virtual‑image devices and supports product specifications, supplier contracts and safety requirements.
Related standards
- ISO 9241‑305 (display measurement concepts) and SAE J1757‑2 are referenced for comparison of measurement approaches and concepts.
- IEC 62629 series (other parts) covers additional aspects of 3D display device measurement.
Keywords: IEC 62629-62-11, 3D display devices, virtual-image, measurement methods, optical properties, head-up display, virtual image plane, eye-box, luminance, chromaticity, field of view, geometric distortion, imaging LMD.