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LETTER TO THE EDITOR

The calculation of the luminous efficacy of a semiconductor lamp

B F Jones 1973 J. Phys. D: Appl. Phys. 6 L80-L83   doi: 10.1088/0022-3727/6/7/102  Help

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B F Jones
Research and Engineering Laboratories, Thorn Lighting Limited, Melton Road, Leicester

Abstract. An analytical expression for the luminous efficacy of a semiconductor lamp is derived by representing both the eye response curve and the spectral output of a lamp by gaussian functions and integrating the product. Numerical values are given for lamps whose outputs are centred between 545 and 730 nm.

Print publication: Issue 7 (1 May 1973)
Received 12 March 1973

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