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An Improved-Efficiency Compact Lamp for the Thermal Infrared
W. L. O'Brien, N. D. Boltin, S. A. DeJong, Z. Y. Lu, B. M. Cassidy, S. J. Hoy, S. L. Morgan, M. L. Myrick
This article reports the design and properties of an infrared lamp using a heated alumina emitter suitable for active thermal infrared imaging, as well as comparisons to existing commercial light sources for this purpose.
A major type of infrared camera is sensitive to wavelengths in the 8-14 ìm band and is mainly used for thermal imaging. Such cameras can also be used for general broadband infrared reflectance imaging when provided with a suitable light source. The current study determined that the alumina lamp is a broadband non-blackbody source with a lower out-of-band emission intensity and therefore higher electrical efficiency for this application than existing commercial sources. (Publisher abstract modified)