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Applied Optics

Applied Optics


  • Vol. 10, Iss. 12 — Dec. 1, 1971
  • pp: 2754–2759

Photographic Recording of Some Optical Effects in a 275-m Spherical Mirror

J. W. Klüver  »View Author Affiliations

Applied Optics, Vol. 10, Issue 12, pp. 2754-2759 (1971)

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A 27.5-m-diameter, 210° spherical mirror was housed in one of the pavilions at Expo 70, Osaka, Japan. The mirror was constructed by G. T. Schejdahl on the same principle as the Echo and PAGEOS satellites and made of 12.5-μ Melinex. It was held in place by a negative pressure behind the mirror. This was the first time a number of optical effects could be seen inside a mirror of this size. These are photographically shown and discussed. In addition to the simple first-order real images, higher order image rings were observed. The photographs also indicate the nonparaxial distortion which occurs.

© 1971 Optical Society of America

Original Manuscript: July 8, 1971
Published: December 1, 1971

J. W. Klüver, "Photographic Recording of Some Optical Effects in a 275-m Spherical Mirror," Appl. Opt. 10, 2754-2759 (1971)

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  1. F. A. Jenkins, H. E. White, Fundamentals of Optics (McGraw-Hill, New York, 1957).
  2. The Pepsi-Cola Pavilion was designed by a group of contemporary American and Japanese artists and engineers (Pavilion, published by E. P. Dutton & Co., January1972). Robert Whitman is responsible for the concept of the mirror environment and the use of large-scale optics in a theatrical space.
  3. Melinex is an oriented polyester film and a trade name of Imperial Chemical Industries, Ltd.
  4. G. T. Schjedahl Co., “Design and Fabrication of Inflatable and Rigidizing Passive Communications Satellites, Echo I and II,” Papers from the Aerospace Expandable Structures Conference, October 22–24, 1963, AFAPL-AFFDL, p. 576.J. P. Talentino, “Development of the Fabrication and Packaging Techniques for the Echo II Satellite,” NASA TM-X-55764, GSFC, December1966.S. J. Stenlund, “PAGEOS Fabrications, Accuracy and Reliability,” Papers from the Third Aerospace Expandable and Modular Structures Conference, Langley Research Center, May16–18, 1967; AFAPLTR-68-17, p. 181.Lewis A. Teichman, “Fabrication, and Testing of PAGEOS I,” NASA TN-D-4596, Langley Research Center, June1968.
  5. E. Garmire, Appl. Opt. 10, 2759 (1971). [CrossRef]

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