Technical Memorandum: Quantification and Specification of Visual Responses to Temporal Light Modulation (a.k.a. Flicker)
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ANSI/IES TM-39-25
Document Type: Technical Memorandum (TM)
Available as a downloadable secure PDF only.
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Product Description
Intended Audience: Lighting producers and testing labs, researchers, specifiers, regulators, specification writing organizations, etc.
Intended Interest Categories: Specifier (US), Affected (UA), Public Interest (UP), Academic, Research (GAR), Government, Regulatory (GGR), General SME (GSME), Organizational (OM) Test Equip User (TEU), Test Equip Manf (TEM).
Description: Learn how a measurement made according to LM-90 can be used to derive metrics Mp, SVM, and PAVM. It will include any necessary pre-processing (e.g., windowing) and specific calculation steps for each metric.
Page count: 41 pages
Publisher: Illuminating Engineering Society (2025)
SKU: ANSI/IES TM-39-25
ISBN-13: 978-0-87995-488-8
Chapters:
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- 1.0 Introduction and Scope
- 2.0 Definitions
- 3.0 Background
- 4.0 Fundamental Studies and Models
- 5.0 Light Source Performance
- 6.0 Metrics for Predicting Visual Perceptions of TLM
- 7.0 Standards, Recommendations, and Regulations for Limiting TLM
- 8.0 Standards for Measuring TLM
- 9.0 TLM in Image Display and Capture
- 10.0 A Path to an IES Standard for Quantifying and Specifying Responses to TLM
- 11.0 Current Best Practices
- 12.0 Conclusion
Citation Format:
Illuminating Engineering Society. ANSI/IES TM-39-25, Technical Memorandum: Quantification and Specification of Visual Responses to Temporal Light Modulation (a.k.a. Flicker). New York: IES; 2025.