DIFFRACTION PATTERN ANALYSIS OF A RECTANGULAR APERTURE IN THE PRESENCE OF ABERRATIONS. PART 2. THE DIFFRACTION PATTERN IN THE PRESENCE OF SINGLE THIRD- ORDER ABERRATIONS. 1. THE EFFECT OF PRIMARY ASTIGMATISM,
Abstract
On the basis of the general solution of the diffraction integral for a rectangular aperture in the presence of geometrical-optical aberrations, the effect of primary astigmatism upon the diffraction pattern intensity distribution is discussed. The diffraction pattern of a stationary ectangular aperture is described by means of a conveniently chosen Cartesian reference system. Two orthogonal aperture orientations are considered and it is shown that the intensity disribution depends on the orientation of the aperture's symmetry axes with respect to the meridional plane defined by the optical axis and the geometrical image point. The intensity distributions in special cases of interest are indicated for each of the two aperture orientations. A general expression is derived for the diffraction-pattern intensity distribution in the rotatingcartesian reference coordinate system, and its mean value is obtained throughout half a slit revolution by integration. Special cases of interest are indicated. The over-all diffraction-pattern intensity distribution of the rotating aperture is determined with respect to a space-fixed coordinate system. The accumulated intensity at any arbitrary point of a space-fixed observation plane, as experienced by a photo graphic plate, may be obtained by integration.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0406343
Entities
People
- H. P. Greinel
Organizations
- Lockheed Martin Missiles and Space