Abstract
The degradation characteristics of L-C150SRCT GaAlAs LEDs intended for use in television pyrometers as reference radiation sources have been investigated in the experiment. It is shown that an increase in the ambient temperature to 50–60°C and in the operating current to 20 mA helps minimize the effect of the degradation processes over the initial 4000-h operating time. In addition, the temperature dependence of the luminous intensity is substantially lowered.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Karachinov, V.A., Karachinov, D.V., and Toritsin, S.B., Zondovye metody televizionnoi pirometrii nagretykh gazovykh potokov: Monografiya (Probe Methods for Television Pyrometry of Heated Gas Flows), Novgorod: NovGU im. Yaroslava Mudrogo, 2006.
Kuznetsov, A.V., RF Patent 2 338 166, Byull. Izobret., 2008, no. 31, part III, p. 775.
Nikiforov, S.G., Extended Abstract of Cand. Sci. (Techn.) Dissertation, Moscow: MISiS, 2007.
Abramov, V.S., Nikiforov, S.G., Sushkov, V.P., and Shishov, A.V., Svetodiody i Lazery, 2003, nos. 1–2, p. 10.
Godovitsyn, I.V., Srok sluzhby sverkh”yarkikh svetodiodov. Prichiny otkazov (Service Life of Superbright LEDs. Sources of Failures), www.bright-leds.ru.
Nikiforov, S.G., Komponenty i Tekhnologii, 2007, no. 5, p. 59.
Nikiforov, S.G., Komponenty i Tekhnologii, 2005, no. 9, p. 48.
L-C150SRCT-U1. Data sheet, Rev.: A/4, 2005-06-09, http://www.symetron.ru/suppliers/paralight/smd/L-C150SRCT.pdf
Author information
Authors and Affiliations
Additional information
Original Russian Text © A.V. Kuznetsov, 2010, published in Pribory i Tekhnika Eksperimenta, 2010, No. 5, pp. 121–123.
Rights and permissions
About this article
Cite this article
Kuznetsov, A.V. Studying the degradation of 0.655-μm GaAlAs LEDs. Instrum Exp Tech 53, 734–736 (2010). https://doi.org/10.1134/S0020441210050210
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0020441210050210