IEC TR 63158-2018 cor1-2018 PDF

Full title and description

IEC TR 63158:2018/COR1:2018 — Corrigendum 1 to IEC TR 63158:2018, "Equipment for general lighting purposes — Objective test method for stroboscopic effects of lighting equipment". This corrigendum contains editorial and technical corrections to the original Technical Report, clarifying formulas and wording used in the objective stroboscopic-effect visibility (SVM) method.

Abstract

IEC TR 63158:2018 defines an objective stroboscopic-effect visibility (SVM) meter and a measurement method for assessing visible stroboscopic effects caused by temporal light modulation of lighting equipment in general indoor applications. The corrigendum (COR1:2018) issues specific corrections (for example to Annex A.1 formula wording and the definition of Fourier-component amplitudes) to ensure the SVM computation and explanatory text are consistent. The TR is intended for typical indoor light levels (generally >100 lx) and moderate observer or object movement.

General information

• Status: Published.
• Publication date: 19 July 2018 (Corrigendum 1).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.140.01 (Lamps in general).
• Edition / version: Edition 1.0 (IEC TR 63158:2018) with Corrigendum 1 (2018).
• Number of pages: 1 (Corrigendum document). Note: the base Technical Report IEC TR 63158:2018 is a longer document (≈35 pages) that the corrigendum amends.

Scope

This corrigendum corrects and clarifies specific text and formulae in IEC TR 63158:2018 related to the objective SVM measurement method. The underlying Technical Report sets out a procedure to measure the visibility of stroboscopic effects produced by temporal light modulation, including definition of the SVM metric, required signal processing (Fourier components of relative illuminance), recommended measurement geometry and lighting conditions, and limits on intended applicability (typical indoor scenes, luminance/illuminance ranges and observer/object motion speeds). The corrigendum amends the TR where wording or mathematical expressions could lead to inconsistent interpretation.

Key topics and requirements

• Definition and objective computation of the Stroboscopic Effect Visibility Metric (SVM) for temporal light modulation measurement.
• Signal representation using Fourier components of relative illuminance and corrected formula wording (as addressed by COR1).
• Measurement instrumentation and processing recommendations for an SVM meter (sampling, bandwidth, and calibration considerations).
• Applicability limits: typical indoor illuminance conditions (generally >100 lx) and guidance for observer/object motion speeds (moderate movements).
• Guidance on interpreting SVM results for product performance assessment and comparison.

Typical use and users

Used by lighting product manufacturers, independent test laboratories, standards developers, certification bodies, lighting designers, and researchers working on temporal light modulation and human factors. The corrigendum is primarily relevant to technical editors, test-lab engineers and implementers of the SVM measurement who need the corrected formulas and explanatory text to ensure consistent measurements and reporting.

Related standards

IEC TR 63158 is associated with and referenced alongside other lighting and temporal-light standards and guidance such as IEC 61547 (EMC immunity for lighting equipment), IEC TR 63036 / 63037, CIE technical notes (e.g., CIE TN 006), CIE S 025, IEEE 1789, and NEMA SSL guidance. National/adopted publications (for example BS PD or DIN adoptions) may incorporate the TR and its corrigendum.

Keywords

Stroboscopic effect, SVM, temporal light modulation, objective test method, illuminance Fourier components, lighting equipment, IEC TR 63158, corrigendum.

FAQ

Q: What is this standard?

A: It is Corrigendum 1 (2018) to IEC TR 63158:2018, the Technical Report that specifies an objective test method and metric (SVM) for assessing visible stroboscopic effects produced by lighting equipment. The corrigendum corrects and clarifies parts of the original TR.

Q: What does it cover?

A: The TR covers an objective SVM measurement method: how to record relative illuminance, represent it by Fourier components, compute the SVM value, and the intended measurement conditions and limitations. The corrigendum fixes specific formula/text issues (notably in Annex A.1) so the SVM computation is unambiguous.

Q: Who typically uses it?

A: Lighting manufacturers, test laboratories, standards committees, certification bodies, lighting designers and researchers concerned with temporal light effects and human perception. The corrigendum is especially relevant to those implementing the SVM computation or preparing test reports.

Q: Is it current or superseded?

A: As of its publication, IEC TR 63158:2018 with Corrigendum 1 (2018) is the corrected version of the TR. The IEC metadata lists the publication and the corrigendum; users should check IEC publication records or national bodies for any later amendments or newer editions beyond 2018.

Q: Is it part of a series?

A: IEC TR 63158 is a standalone Technical Report within the TC 34 (Lighting) portfolio, but it is related by topic to other IEC standards and TRs addressing lighting performance, EMC, photobiological safety and temporal-light metrics. National adoptions and companion documents (e.g., BS PD, DIN adoptions) may pair it with other guidance documents.

Q: What are the key keywords?

A: Stroboscopic effect, SVM, temporal light modulation, Fourier analysis, objective test method, lighting equipment, IEC TR 63158, corrigendum.