Abstract

A simple modification is described which permits Hardy recording spectrophotometers to be used as recording spectroradiometers.

© 1962 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. J. L. Michaelson, J. Opt. Soc. Am. 28, 365 (1938).
    [CrossRef]
  2. B. Pritchard, W. A. Holmwood, J. Opt. Soc. Am. 45, 690 (1955).
    [CrossRef]
  3. A. C. Hardy, J. Opt. Soc. Am. 25, 305 (1935).
    [CrossRef]

1955

1938

1935

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Schematic diagram of a Hardy recording spectrophotometer modified for use as a spectroradiometer.

Fig. 2
Fig. 2

The ratio of the spectral radiance of a yellow fluorescent paint to that of a C.I.E. Illuminant A source, plotted against wavelength over the visible spectral region. The four curves were obtained with the following sources illuminating the paint: (i) a mercury “black glass” lamp emitting radiation principally of wavelength 365 mμ; (ii) a C.I.E. Illuminant A source; (iii) sources (i) and (ii) together; and (iv) a C.I.E. Illuminant A source in conjunction with a sharp cutoff yellow filter of zero spectral transmittance at wavelengths less than 440 mμ.

Fig. 3
Fig. 3

The ratio of the spectral radiance of a dc operated “Daylight” fluorescent tube to that of a C.I.E. Illuminant A source, plotted against wavelength over the visible spectral region. The lower curve was obtained with a neutral glass filter in front of the fluorescent tube.

Metrics