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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 4 — Feb. 19, 2007
  • pp: 1738–1744

Geometrical optics modeling of the grating-slit test

Chao-Wen Liang and Jose Sasian  »View Author Affiliations


Optics Express, Vol. 15, Issue 4, pp. 1738-1744 (2007)
http://dx.doi.org/10.1364/OE.15.001738


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Abstract

A novel optical testing method termed the grating-slit test is discussed. This test uses a grating and a slit, as in the Ronchi test, but the grating-slit test is different in that the grating is used as the incoherent illuminating object instead of the spatial filter. The slit is located at the plane of the image of a sinusoidal intensity grating. An insightful geometrical-optics model for the grating-slit test is presented and the fringe contrast ratio with respect to the slit width and object-grating period is obtained. The concept of spatial bucket integration is used to obtain the fringe contrast ratio.

© 2007 Optical Society of America

OCIS Codes
(080.2720) Geometric optics : Mathematical methods (general)
(220.4840) Optical design and fabrication : Testing

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: November 14, 2006
Revised Manuscript: January 5, 2007
Manuscript Accepted: January 24, 2007
Published: February 19, 2007

Citation
Chao-Wen Liang and Jose Sasian, "Geometrical optics modeling of the grating-slit test," Opt. Express 15, 1738-1744 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-4-1738


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References

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  8. A. Cornejo-Rodriguez, "Ronchi test," in Optical Shop Testing D. Malacara, ed. (Wiley-Interscience, New York, 1992), p. 321.

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