Assessment of filament led bulbs with respect to temporal light artefacts

Johannes Lindén; Anders Thorseth; Dennis Dan Corell; Carsten Dam-Hansen

doi:10.25039/x44.2017.PP38

Assessment of filament led bulbs with respect to temporal light artefacts

Johannes Lindén, Anders Thorseth, Dennis Dan Corell, Carsten Dam-Hansen

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Temporal light artefacts, abbreviated TLAs (including flicker, stroboscopic effect and phantom arrays), i.e. undesired time modulation in luminance from a light source, has shown to be a threat to wider SSL adoption especially related to dimming functions and low-quality LED products. This is due to the effects that both noticeable and unperceivable TLAs have on human perception and wellbeing. In the present work a number of filament LED bulbs, currently available on the market, are assessed primarily with respect to TLAs, but also with respect to photometric, colorimetric and efficiency properties. The investigation shows that only one of the 10 investigated lamps can be considered flicker free. The rest of the lamps the TLAs are of such a magnitude that none of them fulfil the suggested recommendations currently available.

Original language	English
Title of host publication	Proceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017
Publisher	CIE - International Commission on Illumination
Publication date	2017
Pages	718-727
ISBN (Print)	978-3-901906-95-4
DOIs	https://doi.org/10.25039/x44.2017.PP38
Publication status	Published - 2017
Event	CIE Midterm Meeting 2017 - Ramada Plaza Jeju Hotel, Jeju, Korea, Republic of Duration: 23 Oct 2017 → 25 Oct 2017

Conference

Conference	CIE Midterm Meeting 2017
Location	Ramada Plaza Jeju Hotel
Country/Territory	Korea, Republic of
City	Jeju
Period	23/10/2017 → 25/10/2017

Keywords

Temporal Light Artefacts
TLA
Flicker
Filament LEDs
Dimming
Photometry
Colorimetry
Colour Rendering

Access to Document

10.25039/x44.2017.PP38

OpenUrl availability

Full text

Global Test of SSL Products - IEA-4E-SSL
Dam-Hansen, C. (Project Manager) & Thorseth, A. (Project Participant)
01/01/2015 → 01/06/2019
Project: Research

1 Participating in or organising a conference
1 Membership of commitees, commissions, boards, councils, associations, organisations, or similar

CIE TC 2-89: Measurement of Temporal Light Modulation of Light Sources and Lighting Systems (External organisation)
Thorseth, A. (Member)
1 Apr 2018 → …
Activity: Membership › Membership of commitees, commissions, boards, councils, associations, organisations, or similar
CIE 2017 Mid-term meeting Jeju Island
Thorseth, A. (Participant)
20 Oct 2017 → 28 Oct 2017
Activity: Attending an event › Participating in or organising a conference

Cite this

@inproceedings{56a9ad4d7a4d4c0a840252e9ed8950c6,

title = "Assessment of filament led bulbs with respect to temporal light artefacts",

abstract = "Temporal light artefacts, abbreviated TLAs (including flicker, stroboscopic effect and phantom arrays), i.e. undesired time modulation in luminance from a light source, has shown to be a threat to wider SSL adoption especially related to dimming functions and low-quality LED products. This is due to the effects that both noticeable and unperceivable TLAs have on human perception and wellbeing. In the present work a number of filament LED bulbs, currently available on the market, are assessed primarily with respect to TLAs, but also with respect to photometric, colorimetric and efficiency properties. The investigation shows that only one of the 10 investigated lamps can be considered flicker free. The rest of the lamps the TLAs are of such a magnitude that none of them fulfil the suggested recommendations currently available.",

keywords = "Temporal Light Artefacts, TLA, Flicker, Filament LEDs, Dimming, Photometry, Colorimetry, Colour Rendering",

author = "Johannes Lind{\'e}n and Anders Thorseth and Corell, {Dennis Dan} and Carsten Dam-Hansen",

year = "2017",

doi = "10.25039/x44.2017.PP38",

language = "English",

isbn = "978-3-901906-95-4",

pages = "718--727",

booktitle = "Proceedings of the Conference on {"}Smarter Lighting for Better Life{"} at the CIE Midterm Meeting 2017",

publisher = "CIE - International Commission on Illumination",

note = "CIE Midterm Meeting 2017 ; Conference date: 23-10-2017 Through 25-10-2017",

}

Lindén, J, Thorseth, A , Corell, DD & Dam-Hansen, C 2017, Assessment of filament led bulbs with respect to temporal light artefacts. in Proceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017. CIE - International Commission on Illumination, pp. 718-727, CIE Midterm Meeting 2017 , Jeju, Korea, Republic of, 23/10/2017. https://doi.org/10.25039/x44.2017.PP38

Assessment of filament led bulbs with respect to temporal light artefacts. / Lindén, Johannes; Thorseth, Anders ; Corell, Dennis Dan et al.
Proceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017. CIE - International Commission on Illumination, 2017. p. 718-727.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

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AU - Thorseth, Anders

AU - Corell, Dennis Dan

AU - Dam-Hansen, Carsten

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N2 - Temporal light artefacts, abbreviated TLAs (including flicker, stroboscopic effect and phantom arrays), i.e. undesired time modulation in luminance from a light source, has shown to be a threat to wider SSL adoption especially related to dimming functions and low-quality LED products. This is due to the effects that both noticeable and unperceivable TLAs have on human perception and wellbeing. In the present work a number of filament LED bulbs, currently available on the market, are assessed primarily with respect to TLAs, but also with respect to photometric, colorimetric and efficiency properties. The investigation shows that only one of the 10 investigated lamps can be considered flicker free. The rest of the lamps the TLAs are of such a magnitude that none of them fulfil the suggested recommendations currently available.

AB - Temporal light artefacts, abbreviated TLAs (including flicker, stroboscopic effect and phantom arrays), i.e. undesired time modulation in luminance from a light source, has shown to be a threat to wider SSL adoption especially related to dimming functions and low-quality LED products. This is due to the effects that both noticeable and unperceivable TLAs have on human perception and wellbeing. In the present work a number of filament LED bulbs, currently available on the market, are assessed primarily with respect to TLAs, but also with respect to photometric, colorimetric and efficiency properties. The investigation shows that only one of the 10 investigated lamps can be considered flicker free. The rest of the lamps the TLAs are of such a magnitude that none of them fulfil the suggested recommendations currently available.

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KW - TLA

KW - Flicker

KW - Filament LEDs

KW - Dimming

KW - Photometry

KW - Colorimetry

KW - Colour Rendering

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M3 - Article in proceedings

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BT - Proceedings of the Conference on "Smarter Lighting for Better Life" at the CIE Midterm Meeting 2017

PB - CIE - International Commission on Illumination

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Y2 - 23 October 2017 through 25 October 2017

ER -

Assessment of filament led bulbs with respect to temporal light artefacts

Abstract

Conference

Keywords

Access to Document

OpenUrl availability

Fingerprint

Projects

Global Test of SSL Products - IEA-4E-SSL

Activities

CIE TC 2-89: Measurement of Temporal Light Modulation of Light Sources and Lighting Systems (External organisation)

CIE 2017 Mid-term meeting Jeju Island

Cite this