Comparison of luminance distribution on the lighting surface of power LEDs

Authors

DOI:

https://doi.org/10.4302/plp.v11i4.966

Abstract

This work presents luminance distributions across the surface of mid- and high-power diodes. The changes in luminance on diode surfaces following changes in the observation angle were verified. On the basis of the conducted tests, non-uniform luminance distribution on LED surface for diverse observation angles (including the axial direction) was observed. Moreover, it was concluded that luminance changes is not in line with the Lambert’s law. As the result of the research it was also concluded that alterations of the power-supply conditions do not exert any significant impact on the gradient of luminance changes on the surfaces of examined LEDs.

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Published

2019-12-31

How to Cite

[1]
D. Czyżewski, “Comparison of luminance distribution on the lighting surface of power LEDs”, Photonics Lett. Pol., vol. 11, no. 4, pp. 118–120, Dec. 2019.

Issue

Vol. 11 No. 4 (2019)

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Articles

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