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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 55, Iss. 4 — Apr. 1, 1965
  • pp: 347–348

Optically Compensated Zoom Lens

GLENN WOOTERS and E. W. SILVERTOOTH  »View Author Affiliations

JOSA, Vol. 55, Issue 4, pp. 347-348 (1965)

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Investigation of the thin lens theory of zoom lenses results in a general statement concerning conjugate points, a simple proof of the maximum number of crossing points, and an algorithm for computing component focal lengths of a five-component symmetrical zoom lens. The three-component optically compensated zoom lens is discussed in detail. Results of applying the algorithm are given. A prototype of the five-component zoom lens has been built and is briefly discussed.

GLENN WOOTERS and E. W. SILVERTOOTH, "Optically Compensated Zoom Lens," J. Opt. Soc. Am. 55, 347-348 (1965)

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  1. T. Smith, Proc. Phys. Soc. (London) 57, 558 (1945).
  2. The substitution of 1 for A is justified since we are interested in the highest powers of Δ resulting from multiplication. Multiplying some power of Δ by either I or A gives the same result as far as the highest power of Δ is involved.

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