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Applied Optics

Applied Optics


  • Vol. 5, Iss. 5 — May. 1, 1966
  • pp: 701–711

Some Effects of Aerospace Thermal Environments on High-Acuity Optical Systems

William P. Barnes, Jr.  »View Author Affiliations

Applied Optics, Vol. 5, Issue 5, pp. 701-711 (1966)

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The effects of the major features of an aerospace thermal environment on the principal components of large-aperture photographic catadioptric systems are considered. First approximation solutions to the focal shift and on-axis wavefront aberration produced by heat fluxes in windows (or corrector plates) are presented. The effects of axial heat fluxes and uniform temperature changes on mirror structures representative of current practice in lightweight-mirror technology are examined, and first approximations to the deformations of simple slab mirrors, Kanigen-coated metal mirrors, and sandwich-plate construction are derived. Some conclusions on the comparative utility of Kanigen-coated beryllium mirrors and solid or egg-crate fused-silica mirrors are drawn.

© 1966 Optical Society of America

Original Manuscript: June 27, 1965
Published: May 1, 1966

William P. Barnes, "Some Effects of Aerospace Thermal Environments on High-Acuity Optical Systems," Appl. Opt. 5, 701-711 (1966)

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  1. The data in this section have been extracted primarily from the articles of F. Möller, D. M. Hunten, W. M. Sinton, Appl. Opt. 3, 157, 167, 175(1964). A more detailed discussion of the moon, Mars, and Venus may also be found in S. F. Singer, Ed., Progr. Astronaut. Sci.1(1962). [CrossRef]
  2. J. G. Baker, “Optical Systems for Astronomical Photography,” in Amateur Telescope Making, Book Three (Scientific American, Inc., New York, 1961), p. 11.
  3. A. E. Conrady, Applied Optics and Optical Design (Dover Publications, Inc., New York, 1957), p. 455.
  4. Reference 3, p. 628.
  5. Comparison with the solution of Article 42, Case (ii), H. S. Carslaw, J. C. Jaeger, Conduction of Heat in Solids, 1st ed. (University Press, Oxford, England, 1946), 1st Col., p. 104, indicates that the energy balance written here is approximately 15% in error at θ= θ3. This error is considered inconsequential in the conclusions which are drawn, and more complex algebra would obscure the physical view of the problem. In addition, the linear thermal gradient yields the maximum deformation to be expected.
  6. R. M. Scott, Appl. Opt. 1, 387 (1962). See Table 1 on p. 393. [CrossRef]

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