Accession Number:

AD0256937

Title:

A METHOD OF DESIGN FOR A PRISM-ERECTING TELESCOPIC SYSTEM

Descriptive Note:

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s):

Report Date:

1961-04-01

Pagination or Media Count:

1.0

Abstract:

A method of covering the design of an optical system for a prism-erecting telescopic system of 7X, having a field of view of 8 degrees and an exist pupil diameter of 5mm, is presented. Throughout the design, utilization is made of a Royal McBee, LGP-30 computer suitably programmed for computation of the third order aberrations and the tracing of selected trigonometric rays. The design approach starts with an initial set of data, based on past experience, bends the twoAIR SPACES OF THE Erfle eyepiece to effect a desired correction for astigmatism and, finally, bends and corrects the objective lens in order to compensate for thespherical, and coma aberrations of the prism eyepiece combination. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE