Journal ArticleDOI
The Influence of the Condenser on Microscopic Resolution
H. H. Hopkins,P. M. Barham +1 more
- Vol. 63, Iss: 10, pp 737-744
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An expression for the distribution of light in the image of two small apertures which are illuminated by a condenser of numerical aperture equal to s times that of the imaging objective is given in this paper.Abstract:
An expression is found for the distribution of light in the image of two small apertures which are illuminated by a condenser of numerical aperture equal to s times that of the imaging objective The resolving power of the system is written ρ=Kλ/(NA), and K is found as a function of s It is shown that precisely the same result obtains for both critical and Kohler illuminationread more
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Book ChapterDOI
X-Ray Tomography
TL;DR: Guruswamy et al. as discussed by the authors presented a discussion of x-ray tomography using several simplifying assumptions: • We will assume parallel illumination, even though there are reconstruction algorithms [Tuy 1983, Feldkamp 1984] for cone beam tomography where the beam diverges from a point source.
Journal ArticleDOI
Resolution in light microscopy studied by computer simulation
TL;DR: In this paper, a computer simulation of imaging was performed on the Sparrow resolution criterion for line and grating objects and various imaging methods (figures for the Rayleigh criterion, which assumes a finite contrast sensitivity of the light detector, are in parentheses).
References
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Journal ArticleDOI
The concept of degree of coherence and its application to optical problems
TL;DR: In this article, the maximum visibility of the interferences obtainable from two points in a wave field is defined as their degree of coherence γ, which depends only on the aperture of the illuminating cone.
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The theory of the microscope
TL;DR: In this paper, the diffraction effects produced by two adjacent apertures and a series of aperture in an opaque screen situated in the focal plane of a lens system are examined.
Journal ArticleDOI