General V(λ) mismatch index: History, current state and new ideas

U. Krüger; A. Ferrero; A. Thorseth; V. Mantela; A. Sperling

doi:10.1177/14771535231158528

General V(λ) mismatch index: History, current state and new ideas

U. Krüger
, A. Ferrero
, A. Thorseth
, V. Mantela^*
, A. Sperling

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

2 Sitaatiot (Scopus)

192 Lataukset (Pure)

Abstrakti

The general V(λ) mismatch index f1′ specifies the mismatch between the relative spectral responsivity of a photometer, and the spectral luminous efficiency function for photopic vision, V(λ). A short review of its historical development explains the reasons for the current definition and which adjustments may be helpful in the future. The properties of the current definition are described in detail. It is very likely that photometers will be calibrated with a white light-emitting diode (LED) light source as the reference in the future. This might involve the need for a more appropriate definition of the general V(λ) mismatch index, either by using a different normalisation in f1′ for the relative spectral responsivity of the photometer or by introducing a different type of function for assessing the mismatch. On the other hand, the measurement of coloured LEDs is also becoming increasingly important. So, is a single general mismatch index for white and coloured light sources sufficient?

Alkuperäiskieli	Englanti
Sivut	420-432
Sivumäärä	13
Julkaisu	Lighting Research and Technology
Vuosikerta	55
Numero	4-5
Varhainen verkossa julkaisun päivämäärä	15 huhtik. 2023
DOI - pysyväislinkit	https://doi.org/10.1177/14771535231158528
Tila	Julkaistu - 1 kesäk. 2023
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This project, 19NRM02 RevStdLED, has received funding from the EMPIR programme co-financed by the participating counties and from the European Union’s Horizon 2020 research and innovation programme. VM acknowledges partial support by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167.

Pääsy asiakirjaan

10.1177/14771535231158528Lisenssi: CC BY

14771535231158528Final published version, 737 KBLisenssi: CC BY

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Linkki julkaisuun Scopuksessa

RevStdLED EMPIR: Revision and extension of standards for test methods for LED lamps, luminaires and modules
Kärhä, P. (Vastuullinen johtaja), Poikonen, T. (Projektin jäsen), Rezazadeh, Y. (Projektin jäsen), Askola, J. (Projektin jäsen), Peltoniemi, J. (Projektin jäsen), Lahti, L. (Projektin jäsen), Mantela, V. (Projektin jäsen) & Kosonen, V. (Projektin jäsen)
01/09/2020 → 31/08/2023
Projekti: EU Other competitive funding
PREIN: Fotoniikan Tutkimus ja Innovaatio
Mäkelä, K. (Vastuullinen johtaja)
01/01/2019 → 31/12/2022
Projekti: Academy of Finland: Other research funding

Siteeraa tätä

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title = "General V(λ) mismatch index: History, current state and new ideas",

abstract = "The general V(λ) mismatch index f1′ specifies the mismatch between the relative spectral responsivity of a photometer, and the spectral luminous efficiency function for photopic vision, V(λ). A short review of its historical development explains the reasons for the current definition and which adjustments may be helpful in the future. The properties of the current definition are described in detail. It is very likely that photometers will be calibrated with a white light-emitting diode (LED) light source as the reference in the future. This might involve the need for a more appropriate definition of the general V(λ) mismatch index, either by using a different normalisation in f1′ for the relative spectral responsivity of the photometer or by introducing a different type of function for assessing the mismatch. On the other hand, the measurement of coloured LEDs is also becoming increasingly important. So, is a single general mismatch index for white and coloured light sources sufficient?",

author = "U. Kr{\"u}ger and A. Ferrero and A. Thorseth and V. Mantela and A. Sperling",

note = "Funding Information: The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This project, 19NRM02 RevStdLED, has received funding from the EMPIR programme co-financed by the participating counties and from the European Union{\textquoteright}s Horizon 2020 research and innovation programme. VM acknowledges partial support by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167. ",

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doi = "10.1177/14771535231158528",

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AU - Mantela, V.

AU - Sperling, A.

N1 - Funding Information: The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This project, 19NRM02 RevStdLED, has received funding from the EMPIR programme co-financed by the participating counties and from the European Union’s Horizon 2020 research and innovation programme. VM acknowledges partial support by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167.

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N2 - The general V(λ) mismatch index f1′ specifies the mismatch between the relative spectral responsivity of a photometer, and the spectral luminous efficiency function for photopic vision, V(λ). A short review of its historical development explains the reasons for the current definition and which adjustments may be helpful in the future. The properties of the current definition are described in detail. It is very likely that photometers will be calibrated with a white light-emitting diode (LED) light source as the reference in the future. This might involve the need for a more appropriate definition of the general V(λ) mismatch index, either by using a different normalisation in f1′ for the relative spectral responsivity of the photometer or by introducing a different type of function for assessing the mismatch. On the other hand, the measurement of coloured LEDs is also becoming increasingly important. So, is a single general mismatch index for white and coloured light sources sufficient?

AB - The general V(λ) mismatch index f1′ specifies the mismatch between the relative spectral responsivity of a photometer, and the spectral luminous efficiency function for photopic vision, V(λ). A short review of its historical development explains the reasons for the current definition and which adjustments may be helpful in the future. The properties of the current definition are described in detail. It is very likely that photometers will be calibrated with a white light-emitting diode (LED) light source as the reference in the future. This might involve the need for a more appropriate definition of the general V(λ) mismatch index, either by using a different normalisation in f1′ for the relative spectral responsivity of the photometer or by introducing a different type of function for assessing the mismatch. On the other hand, the measurement of coloured LEDs is also becoming increasingly important. So, is a single general mismatch index for white and coloured light sources sufficient?

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DO - 10.1177/14771535231158528

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SN - 1477-1535

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SP - 420

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JO - Lighting Research and Technology

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ER -

General V(λ) mismatch index: History, current state and new ideas

Abstrakti

Rahoitus

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

RevStdLED EMPIR: Revision and extension of standards for test methods for LED lamps, luminaires and modules

PREIN: Fotoniikan Tutkimus ja Innovaatio

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