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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 7, Iss. 7 — Jul. 1, 1968
  • pp: 1359–1362

Emissivity of Isothermal Spherical Cavity with Gray Lambertian Walls

Fred E. Nicodemus  »View Author Affiliations


Applied Optics, Vol. 7, Issue 7, pp. 1359-1362 (1968)
http://dx.doi.org/10.1364/AO.7.001359


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Abstract

An exact expression for the emissivity of an ideally diffuse, gray, isothermal, spherical cavity is derived directly, making no geometrical approximations, and is shown to agree with the results of DeVos, Gouffé, and Sparrow and Jonsson, as compared by Fecteau. It appears that, even under ideal conditions, the spherical configuration is the only one that will have uniform isotropic emissivity over a wide angle, approaching a full hemisphere, across the entire aperture.

© 1968 Optical Society of America

History
Original Manuscript: January 12, 1968
Published: July 1, 1968

Citation
Fred E. Nicodemus, "Emissivity of Isothermal Spherical Cavity with Gray Lambertian Walls," Appl. Opt. 7, 1359-1362 (1968)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-7-7-1359


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References

  1. M. L. Fecteau, Appl. Opt. 7, 1363 (1968). [CrossRef] [PubMed]
  2. J. C. DeVos, Physica 20, 669 (1954). [CrossRef]
  3. André Gouffé, Rev Opt. 24, 1 (1945).
  4. E. M. Sparrow, V. K. Jonsson, J. Heat Transfer 84, 188 (1962); also NASA Tech. Note D–1289, National Aeronautics and Space Administration, Washington, D.C. (June1962). [CrossRef]
  5. F. E. Nicodemus, Appl. Opt. 4, 767 (1965). [CrossRef]
  6. W. L. Wolfe, F. E. Nicodemus, in Handbook of Military Infrared Technology, W. L. Wolfe, Ed. (Office of Naval Research, Washington, D.C., 1965), Chap. 2.
  7. F. E. Nicodemus, in Applied Optics and Optical Engineering, R. Kingslake, Ed. (Academic Press Inc., New York, 1967), Vol. 4, Chap. 8.
  8. F. E. Nicodemus, Am. J. Phys. 31, 368 (1963). [CrossRef]
  9. W. E. Sumpner, Proc. Phys. Soc. (London) 12, 10 (1892); also Phil. Mag. 35, 81 (1893). [CrossRef]

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