Conclusions
Crystal phosphors with photon multiplication in the optical range can be used as efficient light transformers. Their use in mercury-free luminescent gas-discharge lamps is especially promising. Analysis of the present position as regards neon discharges indicates that by using phosphors withη t=2–3 it might be possible to create light sources with an efficiency of 30–50 1m/W which would operate solely under outdoor lighting conditions. Evaluation of the prospects of developing light transformers withη t=2–3 indicates that this problem is solvable in principle.
We are grateful to the staff of the Ionic Crystal Physics Sector of the Institute of Physics and Astronomy, AS Estonian SSR, and especially to G. Liid'ya, R. Kink, N. Lushchik, I. Meriloo, N. Rooze, and R. Milenina for taking part in our discussions of the problem of transformers with photon multiplication. We also wish to thank V. V. Fedorov and F. A. Butaeva of the All-Union Scientific Institute of Lighting Engineering, who drew our attention to the importance of developing luminophors withη>1 for new light sources.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 10, No. 1, pp. 127–133, January, 1969.
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Il'mas, E.R., Lushchik, C.B. & Savikhina, T.I. Light transformers with photon multiplication. J Appl Spectrosc 10, 92–97 (1969). https://doi.org/10.1007/BF01881174
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DOI: https://doi.org/10.1007/BF01881174