Characterization Of Images Produced By Single And Multiple Apertures And Their Applications

K. Hane; C. P. Grover

doi:10.1117/12.947582

16 January 1989 Characterization Of Images Produced By Single And Multiple Apertures And Their Applications

K. Hane, C. P. Grover

Proceedings Volume 0954, Optical Testing and Metrology II; (1989) https://doi.org/10.1117/12.947582
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States

Abstract

We have considered the image formation due to a number of single and multiple apertures in their immediate vicinity. Under incoherent illumination the images are produced with an extremely high demagnification, typically of the order of 10³. Analyses based on geometrical optics, Fresnel-Kirchhoff diffraction theory and the optical transfer function (OTF) have been used to characterize the images produced by pinholes, rectangular slits and rectangular transmission gratings. The high factor of demagnification has been advantageously utilized for numerous applications including image subtraction and phase object characterization. The reverse geometry producing highly magnified images has been discussed and applied to displacement metrology.

Citation Download Citation

K. Hane and C. P. Grover "Characterization Of Images Produced By Single And Multiple Apertures And Their Applications", Proc. SPIE 0954, Optical Testing and Metrology II, (16 January 1989); https://doi.org/10.1117/12.947582

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