Draft:List of file formats for luminaire radiometric data: Difference between revisions

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| ATLA S001 and S001-A || .json, .xml || 2018,<ref>{{cite web |title=ATLA S001, Standard Format for the Electronic Transfer of Luminaire Optical Data, Revision 1.00 |url=https://www.allthingslighting.org/wp-content/uploads/2024/06/1-ATLA-S001.pdf |website=AllThingsLighting.org |publisher=All Things Lighting Association |isbn=978-1-7781056-0-9 |date=4 Sep 2018 |access-date=22 Nov 2025}}</ref> 2021<ref>{{cite web |title=ATLA S001-A, Amendment to Standard Format for the Electronic Transfer of Luminaire Optical Data, Including JSON Specification, Revision 1.02 |url=https://www.allthingslighting.org/wp-content/uploads/2024/06/ATLA-S001-A-Rev.-02.ISBN_.pdf |website=AllThingsLighting.org |publisher=All Things Lighting Association |isbn=978-1-7781056-1-6 |date=22 Sep 2021 |access-date=22 Nov 2025}}</ref> || Basis for IES TM-33 and UNI 11733<ref>{{cite web |date=25 Jan 2019 |title=IES TM-33-18 Errata |url=https://media.ies.org/docs/errata/TM-33-18-ERRATA-20190125.pdf |website=ies.org |location=New York |publisher=[[Illuminating Engineering Society]] |access-date=21 Nov 2025}}</ref><ref>{{cite web |title=Lighting Standards and White Papers |url=https://www.allthingslighting.org/lighting-standards-2/ |website=AllThingsLighting.org |location=Victoria, BC Canada |publisher=All Things Lighting Association |access-date=21 Nov 2025}}</ref><ref>{{cite web |title=ATLA S001 Interpretation Notices |url=https://www.allthingslighting.org/atla-s001-interpretation-notices/ |website=AllThingsLighting.org |location=Victoria, BC Canada |publisher=All Things Lighting Association |access-date=21 Nov 2025}}</ref><ref>{{cite web |date=31 Jan 2022 |title=New Industry Association: ATLA – Illuminating the Complicated |url=https://inside.lighting/press/22-q1/new-industry-association-atla-illuminating-complicated |website=inside.lighting |publisher=Inside Lighting |access-date=21 Nov 2025}}</ref><ref>{{cite web |last=Shiller |first=David |date=8 Feb 2022 |title=New International Lighting Non-Profit Founded In Canada |url=https://www.lightnowblog.com/2022/02/new-international-lighting-non-profit-founded-in-canada/ |website=LightNowBlog.com |publisher=LightNOW |access-date=21 Nov 2025}}</ref> || Luminous intensity distribution, spectral distribution

| ATLA S001 and S001-A || .json, .xml || 2018,<ref>{{cite web |title=ATLA S001, Standard Format for the Electronic Transfer of Luminaire Optical Data, Revision 1.00 |url=https://www.allthingslighting.org/wp-content/uploads/2024/06/1-ATLA-S001.pdf |website=AllThingsLighting.org |publisher=All Things Lighting Association |isbn=978-1-7781056-0-9 |date=4 Sep 2018 |access-date=22 Nov 2025}}</ref> 2021<ref>{{cite web |title=ATLA S001-A, Amendment to Standard Format for the Electronic Transfer of Luminaire Optical Data, Including JSON Specification, Revision 1.02 |url=https://www.allthingslighting.org/wp-content/uploads/2024/06/ATLA-S001-A-Rev.-02.ISBN_.pdf |website=AllThingsLighting.org |publisher=All Things Lighting Association |isbn=978-1-7781056-1-6 |date=22 Sep 2021 |access-date=22 Nov 2025}}</ref> || Basis for IES TM-33 and UNI 11733<ref>{{cite web |date=25 Jan 2019 |title=IES TM-33-18 Errata |url=https://media.ies.org/docs/errata/TM-33-18-ERRATA-20190125.pdf |website=ies.org |location=New York |publisher=[[Illuminating Engineering Society]] |access-date=21 Nov 2025}}</ref><ref>{{cite web |title=Lighting Standards and White Papers |url=https://www.allthingslighting.org/lighting-standards-2/ |website=AllThingsLighting.org |location=Victoria, BC Canada |publisher=All Things Lighting Association |access-date=21 Nov 2025}}</ref><ref>{{cite web |title=ATLA S001 Interpretation Notices |url=https://www.allthingslighting.org/atla-s001-interpretation-notices/ |website=AllThingsLighting.org |location=Victoria, BC Canada |publisher=All Things Lighting Association |access-date=21 Nov 2025}}</ref><ref>{{cite web |date=31 Jan 2022 |title=New Industry Association: ATLA – Illuminating the Complicated |url=https://inside.lighting/press/22-q1/new-industry-association-atla-illuminating-complicated |website=inside.lighting |publisher=Inside Lighting |access-date=21 Nov 2025}}</ref><ref>{{cite web |last=Shiller |first=David |date=8 Feb 2022 |title=New International Lighting Non-Profit Founded In Canada |url=https://www.lightnowblog.com/2022/02/new-international-lighting-non-profit-founded-in-canada/ |website=LightNowBlog.com |publisher=LightNOW |access-date=21 Nov 2025}}</ref> || Luminous intensity distribution, spectral distribution

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| [[EULUMDAT]] || .exl, .ldt || 1990, 1998<ref>{{cite web |title=EULUMDAT File Format |url=https://docs.agi32.com/PhotometricToolbox/Content/Open_Tool/eulumdat_file_format.htm |website=agi32.com |access-date=21 Nov 2025}}</ref> || De facto European standard<ref>{{cite book |last=Niall | first=Keith K. | editor-first1=Keith K. | editor-last1=Niall |title=Vision and Displays for Military and Security Applications: The Advanced Deployable Day/Night Simulation Project |location=New York |publisher=[[Springer Science+Business Media]] |pages=55 |date=2010 |doi=10.1007/978-1-4419-1723-2 | isbn=978-1-4419-1722-5 }}</ref><ref>{{citation |last1=Jafrancesco |first1=David |last2=Mercatelli |first2=Luca |last3=Fontani |first3=Daniela |last4=Sansoni |first4=Paola |title=Optical CAD Utilization for the Design and Testing of a LED Streetlamp |journal=Materials |doi=10.3390/ma10090985 |volume=10 |issue=9 |pages=985 |year=2017 |pmid=28837098 |pmc=5615640 |bibcode=2017Mate…10..985J |doi-access=free }}</ref><ref name=”Ashdown” /><ref>{{cite web |title=Talking Photometry: Understanding Photometric Data Formats |url=https://www.photometrictesting.co.uk/File/understanding_photometric_data_files.php |website=PhotometricTesting.co.uk |location=Bedfordshire |publisher=Photometric & Optical Testing Services LLP |access-date=20 Nov 2025}}</ref> || Luminous intensity distribution

| [[EULUMDAT]] || .exl, .ldt || 1990, 1998<ref>{{cite web |title=EULUMDAT File Format |url=https://docs.agi32.com/PhotometricToolbox/Content/Open_Tool/eulumdat_file_format.htm |website=agi32.com |access-date=21 Nov 2025}}</ref> || De facto European standard<ref>{{cite book |last=Niall | first=Keith K. | editor-first1=Keith K. | editor-last1=Niall |title=Vision and Displays for Military and Security Applications: The Advanced Deployable Day/Night Simulation Project |location=New York |publisher=[[Springer Science+Business Media]] |pages=55 |date=2010 |doi=10.1007/978-1-4419-1723-2 | isbn=978-1-4419-1722-5 }}</ref><ref>{{citation |last1=Jafrancesco |first1=David |last2=Mercatelli |first2=Luca |last3=Fontani |first3=Daniela |last4=Sansoni |first4=Paola |title=Optical CAD Utilization for the Design and Testing of a LED Streetlamp |journal=Materials |doi=10.3390/ma10090985 |volume=10 |issue=9 |pages=985 |year=2017 |pmid=28837098 |pmc=5615640 |bibcode=2017Mate…10..985J |doi-access=free }}</ref><ref name=”Ashdown” /><ref>{{cite web |title=Talking Photometry: Understanding Photometric Data Formats |url=https://www.photometrictesting.co.uk/File/understanding_photometric_data_files.php |website=PhotometricTesting.co.uk |location=Bedfordshire |publisher=Photometric & Optical Testing Services LLP |access-date=20 Nov 2025}}</ref> || Luminous intensity distribution

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Latest revision as of 20:46, 22 November 2025

Many file formats have been defined for radiometric data characterizing the optical radiation emitted by devices. This list article provides a list of file formats for luminaire radiometric data, grouping formats from standards organizations in Table 1 and other formats in Table 2.

Computer files using these formats are designed to be imported into lighting simulation software for architectural lighting design, and are not readily understood by human readers.[1] They typically contain photometric data characterizing the light output of luminaires, but can also be applied to the lamps and other kinds of light sources used within luminaires.

Some formats (e.g., IES LM-63) were only designed to describe visible radiation (light), but can be adapted to describe ultraviolet radiation or infrared radiation if the file is appropriately annotated and the user understands the deviation.[2][3] Other formats (e.g., IES TM-33) were designed to describe any kind of optical radiation, such as from germicidal lamps.[4][5]

Some formats include luminous intensity distribution data (measured using a goniophotometer), some include spectral distribution data, and some contain both. Some were designed to also use measurement units based on photon counting (e.g., see photosynthetically active radiation), in addition to radiometry-based units. Some contain additional kinds of data (e.g., electrical input power, physical dimensions) useful in designing systems.

Table 1. File formats from standards organizations
File format Filename extensions Editions Status Key radiometric parameters
CIBSE TM14 .c1s, .cc, .cib, .tml 1988[6] Archived Luminous intensity distribution
CIE 102 1993[7] Archived, became basis for EN 13032-1 Luminous intensity distribution
EN 13032-1 .cen 2004, 2012[8] Active European standard Luminous intensity distribution
IES LM-63 .ies 1986, 1991, 1995, 2002, 2019, 2025[9] Active ANSI standard Luminous intensity distribution
IES TM-27 .spdx 2014, 2020[10] Active ANSI standard Spectral distribution
IES TM-33 .json, .xml 2018, 2023[11] Active ANSI standard Luminous intensity distribution, spectral distribution
UNI 11733 .json, .xml 2019,[12] 2020[13] Active Italian standard Luminous intensity distribution, spectral distribution
  1. ^ a b Ashdown, Ian (15 Jan 2019). “Rethinking the Photometric Data File Format”. led-professional.com. New York: Illuminating Engineering Society. Retrieved 20 Nov 2025.
  2. ^ Jones, Nathaniel; Lynch, Paul; Hewlings, Joseph; Boyd, Justin; Seffinger, Ryan; Lister, Dan; Thomas, Renee (Sep 2021). “Simulation of COVID-19 ultraviolet disinfection using coupled ray tracing and CFD”. Proceedings of the 17th IBPSA Conference. Bruges, Belgium: International Building Performance Simulation Association. p. 2764. doi:10.26868/25222708.2021.30858.
  3. ^ Grather, Michael (7 Oct 2021). “GUV Measurements – From the Lab to the Field”. ies.org. New York: Illuminating Engineering Society. Retrieved 20 Nov 2025.
  4. ^ Ashdown, Ian (27 Oct 2020). “Ultraviolet Radiation Terminology”. ies.org. New York: Illuminating Engineering Society. Retrieved 20 Nov 2025.
  5. ^ Tuenge, Jason; Arnold, Gabe; Axelson, Margaret; Tan, Jianchuan (Sep 2023). “Radiometric Testing of Germicidal UV Products, Round 1: UV-C Towers and Whole-Room Luminaires (CALiPER Full Report)”. osti.gov. Washington: United States Department of Energy: 54–55. doi:10.2172/2282860. OSTI 2282860. Retrieved 20 Nov 2025.
  6. ^ “CIBSE TM14, Standard file format for transfer of luminaire photometric data (1988)”. cibse.org. London: Chartered Institution of Building Services Engineers. 1988. Retrieved 20 Nov 2025.
  7. ^ “CIE 102-1993, Recommended File Format for Electronic Transfer of Luminaire Photometric Data”. cie.co.at. Vienna: International Commission on Illumination. 1993. Retrieved 20 Nov 2025.
  8. ^ “EN 13032-1:2004+A1:2012, Light and lighting – Measurement and presentation of photometric data of lamps and luminaires – Part 1: Measurement and file format”. standards.cencenelec.eu. Brussels, Belgium: European Committee for Standardization. 2012. Retrieved 21 Nov 2025.
  9. ^ “ANSI/IES LM-63-19(R25), Approved Method: IES Standard File Format for the Electronic Transfer of Photometric Data and Related Information”. ies.org. New York: Illuminating Engineering Society. 2025. Retrieved 20 Nov 2025.
  10. ^ “ANSI/IES TM-27-20, Technical Memorandum: IES Standard Format for the Electronic Transfer of Spectral Data”. ies.org. New York: Illuminating Engineering Society. 2020. Retrieved 20 Nov 2025.
  11. ^ “ANSI/IES TM-33-23, Technical Memorandum: Standard Format for the Electronic Transfer of Luminaire Optical Data”. ies.org. New York: Illuminating Engineering Society. 2023. Retrieved 20 Nov 2025.
  12. ^ “UNI 11733:2019, Light and lighting – Specifications for a photometric and spectrometric data exchange format of lighting fixtures and lamps”. uni.com. Milan: UNI. 2019. Retrieved 20 Nov 2025.
  13. ^ “EC 1-2020 UNI 11733:2019, Light and lighting – Specifications for a photometric and spectrometric data exchange format of lighting fixtures and lamps”. uni.com. Milan: UNI. 2020. Retrieved 21 Nov 2025.
  14. ^ “ATLA S001, Standard Format for the Electronic Transfer of Luminaire Optical Data, Revision 1.00” (PDF). AllThingsLighting.org. All Things Lighting Association. 4 Sep 2018. ISBN 978-1-7781056-0-9. Retrieved 22 Nov 2025.
  15. ^ “ATLA S001-A, Amendment to Standard Format for the Electronic Transfer of Luminaire Optical Data, Including JSON Specification, Revision 1.02” (PDF). AllThingsLighting.org. All Things Lighting Association. 22 Sep 2021. ISBN 978-1-7781056-1-6. Retrieved 22 Nov 2025.
  16. ^ “IES TM-33-18 Errata” (PDF). ies.org. New York: Illuminating Engineering Society. 25 Jan 2019. Retrieved 21 Nov 2025.
  17. ^ “Lighting Standards and White Papers”. AllThingsLighting.org. Victoria, BC Canada: All Things Lighting Association. Retrieved 21 Nov 2025.
  18. ^ “ATLA S001 Interpretation Notices”. AllThingsLighting.org. Victoria, BC Canada: All Things Lighting Association. Retrieved 21 Nov 2025.
  19. ^ “New Industry Association: ATLA – Illuminating the Complicated”. inside.lighting. Inside Lighting. 31 Jan 2022. Retrieved 21 Nov 2025.
  20. ^ Shiller, David (8 Feb 2022). “New International Lighting Non-Profit Founded In Canada”. LightNowBlog.com. LightNOW. Retrieved 21 Nov 2025.
  21. ^ “EULUMDAT File Format Specification”. Archived from the original on 17 Jul 2019.
  22. ^ “EULUMDAT File Format”. agi32.com. Retrieved 21 Nov 2025.
  23. ^ Niall, Keith K. (2010). Niall, Keith K. (ed.). Vision and Displays for Military and Security Applications: The Advanced Deployable Day/Night Simulation Project. New York: Springer Science+Business Media. p. 55. doi:10.1007/978-1-4419-1723-2. ISBN 978-1-4419-1722-5.
  24. ^ Jafrancesco, David; Mercatelli, Luca; Fontani, Daniela; Sansoni, Paola (2017), “Optical CAD Utilization for the Design and Testing of a LED Streetlamp”, Materials, 10 (9): 985, Bibcode:2017Mate…10..985J, doi:10.3390/ma10090985, PMC 5615640, PMID 28837098
  25. ^ “Talking Photometry: Understanding Photometric Data Formats”. PhotometricTesting.co.uk. Bedfordshire: Photometric & Optical Testing Services LLP. Retrieved 20 Nov 2025.

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