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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 41, Iss. 9 — Sep. 1, 1951
  • pp: 630–634

Optical Calculations with Automatic Computing Machinery

DONALD P. FEDER  »View Author Affiliations


JOSA, Vol. 41, Issue 9, pp. 630-634 (1951)
http://dx.doi.org/10.1364/JOSA.41.000630


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Abstract

The National Bureau of Standards has been making optical calculations for well over a year, using both their new high-speed SEAC and the commercially available IBM Card Programmed Electronic Calculator.

Formulas especially suitable for machine computation are presented here. These enable a general ray to be traced through a rotationally symmetrical system of spherical or nonspherical surfaces. Formulas are also given for computing first- and third-order coefficients for any centered optical system.

The formulas are derived from well-known forms, but they are transformed so that none of the quantities used in the machine ever becomes indeterminate or infinite. The formulas for first- and third-order coefficients are simpler than those frequently given and are very convenient for hand calculation.

Citation
DONALD P. FEDER, "Optical Calculations with Automatic Computing Machinery," J. Opt. Soc. Am. 41, 630-634 (1951)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-41-9-630

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