Abstract

The imaging properties of an optical system can be in many cases completely specified by a function of a single variable. A convenient function is the response to a sine wave test pattern as a function of “frequency,” i.e., lines/mm. The difficulty of experimentally providing such a test pattern can be avoided by measuring the response to a square wave (bar pattern) and calculating by a simple formula the corresponding sine wave response factor. The convenience of the sine wave response factor in calculating system performance is illustrated by application to a fluoroscopic imaging system.

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References

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  1. G. C. Higgins and L. A. Jones, J. Soc. Motion Picture Television Engrs. 58, 277 (1952).
  2. O. H. Schade, RCA Rev. 9, 246 (1948).
  3. E. W. H. Selwyn and J. L. Tearle, Proc. Phys. Soc. (London) 58, 493 (1946).
  4. E. W. H. Selwyn, Phot. J. Sect. B 88, 6–12 (1948).
  5. H. A. Klasens, Philips Research Repts. 1, 241 (1946).
  6. H. Frieser, Congr. intern. phot. IXe Congr. 207 (1935).

Frieser, H.

H. Frieser, Congr. intern. phot. IXe Congr. 207 (1935).

Higgins, G. C.

G. C. Higgins and L. A. Jones, J. Soc. Motion Picture Television Engrs. 58, 277 (1952).

Jones, L. A.

G. C. Higgins and L. A. Jones, J. Soc. Motion Picture Television Engrs. 58, 277 (1952).

Klasens, H. A.

H. A. Klasens, Philips Research Repts. 1, 241 (1946).

Schade, O. H.

O. H. Schade, RCA Rev. 9, 246 (1948).

Selwyn, E. W. H.

E. W. H. Selwyn and J. L. Tearle, Proc. Phys. Soc. (London) 58, 493 (1946).

E. W. H. Selwyn, Phot. J. Sect. B 88, 6–12 (1948).

Tearle, J. L.

E. W. H. Selwyn and J. L. Tearle, Proc. Phys. Soc. (London) 58, 493 (1946).

Other (6)

G. C. Higgins and L. A. Jones, J. Soc. Motion Picture Television Engrs. 58, 277 (1952).

O. H. Schade, RCA Rev. 9, 246 (1948).

E. W. H. Selwyn and J. L. Tearle, Proc. Phys. Soc. (London) 58, 493 (1946).

E. W. H. Selwyn, Phot. J. Sect. B 88, 6–12 (1948).

H. A. Klasens, Philips Research Repts. 1, 241 (1946).

H. Frieser, Congr. intern. phot. IXe Congr. 207 (1935).

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