The Role of Standard and Supplementary Observers in Accurate Illuminance measurements

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DOI:

https://doi.org/10.4302/plp.v16i3.1286

Abstract

Typically the sensitivity V2 (λ) for a 2° standard observer is used at photometric measurments. Nevertheless, the light reach the human eye from wider field of view. This fact motivated the International Commission on Illumination to introduce the 10° supplementary observer with sensitivity V10 (λ). This paper analyzes the impact of transition from V2 (λ) to V10 (λ) on measured pc-LEDs illuminance values. The results indicate that the maximum difference is 2% for 3000 K pc-LEDs, 4% for 4000 K pc-LEDs, and 6% for 6500 K pc LEDs.

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Published

2024-10-01

How to Cite

[1]
M. Listowski, “The Role of Standard and Supplementary Observers in Accurate Illuminance measurements ”, Photonics Lett. Pol., vol. 16, no. 3, pp. 52–54, Oct. 2024.

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Vol. 16 No. 3 (2024)

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Articles

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