IEC 63145-22-10:2020
(Main)Eyewear display - Part 22-10: Specific measurement methods for AR type - Optical properties
Eyewear display - Part 22-10: Specific measurement methods for AR type - Optical properties
IEC 63145-22-20:2020(E) specifies the standard measurement conditions and measuring methods for determining the see-through optical properties and imaging quality of augmented reality (AR) eyewear displays. This includes the transmission characteristics and ambient optical performance of the eyewear displays.
Contact lens type displays are out of the scope of this document.
NOTE The relationship between the scope and other documents (IEC 63145-20-10, IEC 63145-22-10) is shown in Annex A.
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IEC 63145-22-10 ®
Edition 1.0 2020-01
INTERNATIONAL
STANDARD
colour
inside
Eyewear display –
Part 22-10: Specific measurement methods for AR type – Optical properties
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IEC 63145-22-10 ®
Edition 1.0 2020-01
INTERNATIONAL
STANDARD
colour
inside
Eyewear display –
Part 22-10: Specific measurement methods for AR type – Optical properties
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.180.99; 31.120 ISBN 978-2-8322-7737-9
– 2 – IEC 63145-22-10:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, abbreviated terms and letter symbols . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 7
3.3 Letter symbols (symbols for quantities, and units) . 7
4 Standard measurement conditions . 7
4.1 Standard environmental conditions . 7
4.2 Power supply . 8
4.3 Warm-up time . 8
4.4 Dark room condition . 8
5 Measurement systems . 8
5.1 Standard coordinate system . 8
5.2 Measurement equipment . 9
5.2.1 Light measuring device (LMD) . 9
5.2.2 Stage condition . 11
5.2.3 Setup conditions . 11
5.3 Test patterns. 13
5.3.1 General . 13
5.3.2 Checkerboard pattern . 13
5.4 Measuring points . 13
6 Measurement methods . 14
6.1 Spectral directional transmittance . 14
6.1.1 General . 14
6.1.2 Conditions . 14
6.1.3 Procedure . 15
6.1.4 Calculation . 15
6.1.5 Report . 16
6.2 Colour difference . 16
6.2.1 General . 16
6.2.2 Conditions . 16
6.2.3 Procedure . 17
6.2.4 Calculation . 17
6.2.5 Report . 17
6.3 Front side stray light . 18
6.3.1 General . 18
6.3.2 Conditions . 18
6.3.3 Procedure . 19
6.3.4 Calculation . 20
6.3.5 Report . 20
6.4 Contrast modulation . 20
6.4.1 General . 20
6.4.2 Conditions . 20
6.4.3 Procedure . 22
6.4.4 Calculation . 22
6.4.5 Report . 22
Annex A (informative) See-through optical properties of AR eyewear displays . 23
Annex B (informative) Response time of electronic dimming devices . 24
Annex C (informative) Back side stray light . 25
Bibliography . 26
Figure 1 – Spherical coordinate system . 9
Figure 2 – Three-dimensional Cartesian coordinate system . 9
Figure 3 – Example of LMD structure . 10
Figure 4 – Example of measuring setup for eyewear displays . 12
Figure 5 – Example of 5 x 5 checkerboard pattern . 13
Figure 6 – Measuring points for the centre- and multi-point measurements . 14
Figure 7 – Setup of transmittance measurement . 15
Figure 8 – Setup of haze measurement . 19
Figure 9 – Example of contrast modulation test pattern . 21
Figure 10 – Setup of contrast modulation measurement . 22
Figure A.1 – Observed light under ambient lighting conditions . 23
Figure B.1 – Response time of electronic dimming device (fall time) . 24
Figure B.2 – Response time of electronic dimming device (rise time) . 24
Table 1 – Letter symbols (quantity symbols and units) . 7
Table 2 – Measuring conditions . 20
– 4 – IEC 63145-22-10:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EYEWEAR DISPLAY –
Part 22-10: Specific measurement methods for AR type –
Optical properties
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