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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 25, Iss. 4 — Feb. 15, 1986
  • pp: 490–492

Index variations in cover sheets

Alan B. Marchant  »View Author Affiliations


Applied Optics, Vol. 25, Issue 4, pp. 490-492 (1986)
http://dx.doi.org/10.1364/AO.25.000490


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Abstract

When an optical system focuses light through a transparent cover sheet, refractive-index variations create spherical aberration which can be partially compensated by adjusting the cover-sheet thickness. In practice, a wide range of refractive index can be tolerated by a diffraction-limited objective lens given such thickness optimization. For example, a system with a numerical aperture of 0.6 and a nominal cover-sheet thickness of 1.2 mm can tolerate a refractive-index range from 1.45 to 1.60.

© 1986 Optical Society of America

History
Original Manuscript: September 4, 1985
Published: February 15, 1986

Citation
Alan B. Marchant, "Index variations in cover sheets," Appl. Opt. 25, 490-492 (1986)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-25-4-490

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