Abstract

The instrument described was specifically designed for measurement of the spectral irradiance of lighting in experimental plant growth chambers. However, without modification it is usable for experimental light source measurements and for illumination engineering applications. The spectroradiometer is basically composed of a motor-driven grating monochromator with suitably adapted multiplier phototube, amplifier, and strip chart recorder. The spectral region covered extends from 350 nm in the near uv to 850 nm in the near ir. Included here is a discussion of the desirable characteristics of spectroradiometers for this application.

© 1965 Optical Society of America

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