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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 34 — Dec. 1, 1999
  • pp: 7002–7008

Implementation of multilens micro-optical systems with large numerical aperture by stacking of microlenses

Róbert Klug and Karl-Heinz Brenner  »View Author Affiliations


Applied Optics, Vol. 38, Issue 34, pp. 7002-7008 (1999)
http://dx.doi.org/10.1364/AO.38.007002


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Abstract

In the field of micro-optics there is a demand for objectives with large numerical aperture (NA). One example is optical storage in which a NA greater than 0.5 is required. For planar microlenses the NA is determined by means of the maximal index difference and the degree of exchange and reaches typical values of 0.13–0.2. Thus stacking is needed to build high NA objectives from planar microlenses. An additional benefit of stacking lenses is the possibility to correct for different types of aberrations. We realized two stacked systems: an array of micro-objectives with a NA of 0.45 from three microlens arrays and a confocal sensor head from four microlens arrays and one pinhole array mask.

© 1999 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.2760) Imaging systems : Gradient-index lenses
(130.0130) Integrated optics : Integrated optics
(130.3120) Integrated optics : Integrated optics devices
(180.0180) Microscopy : Microscopy
(180.1790) Microscopy : Confocal microscopy

History
Original Manuscript: March 16, 1999
Revised Manuscript: June 21, 1999
Published: December 1, 1999

Citation
Róbert Klug and Karl-Heinz Brenner, "Implementation of multilens micro-optical systems with large numerical aperture by stacking of microlenses," Appl. Opt. 38, 7002-7008 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-34-7002

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