Abstract

The position of the first minimum or stationary value which appears in the irradiance beyond the end of the geometrical image in the image plane of an objective with a narrow annular aperture when a line element of uniform radiance lies in the object plane is examined for its relation to the length of the line element. The line element is assumed to be self-radiant or its equivalent by scattering. A table of the relation between line length and the position of the first minimum or stationary value is presented for lengths 2<i>K</i> in the range 0≦2<i>K</i>≦5.728 Airy units. Line elements as short as 0.4 Airy unit appear measurable by this method.

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  1. An objective of Sonine type S0.
  2. H. Osterberg and L. W. Smith, J. Opt. Soc. Am. 54, 408 (1964) (accompanying paper).
  3. Similar curves of Hv(xa) for other objectives of the Sonine family Sv do not exhibit well-developed minima along x except for lines having K values so small that the diffraction image is highly circular.
  4. See Ref. 2.
  5. R. Burnham and J. E. Jackson, Science 122, 951–953 (1955).

Burnham, R.

R. Burnham and J. E. Jackson, Science 122, 951–953 (1955).

Jackson, J. E.

R. Burnham and J. E. Jackson, Science 122, 951–953 (1955).

Osterberg, H.

H. Osterberg and L. W. Smith, J. Opt. Soc. Am. 54, 408 (1964) (accompanying paper).

Smith, L. W.

H. Osterberg and L. W. Smith, J. Opt. Soc. Am. 54, 408 (1964) (accompanying paper).

Other (5)

An objective of Sonine type S0.

H. Osterberg and L. W. Smith, J. Opt. Soc. Am. 54, 408 (1964) (accompanying paper).

Similar curves of Hv(xa) for other objectives of the Sonine family Sv do not exhibit well-developed minima along x except for lines having K values so small that the diffraction image is highly circular.

See Ref. 2.

R. Burnham and J. E. Jackson, Science 122, 951–953 (1955).

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