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Optics Letters

Optics Letters


  • Vol. 25, Iss. 1 — Jan. 1, 2000
  • pp: 1–3

Diffractive Alvarez lens

Ian M. Barton, Sham N. Dixit, Leslie J. Summers, Kenneth Avicola, and Julia Wilhelmsen  »View Author Affiliations

Optics Letters, Vol. 25, Issue 1, pp. 1-3 (2000)

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A diffractive Alvarez lens is demonstrated that consists of two separate phase plates, each having complementary 16-level surface-relief profiles that contain cubic phase delays. Translation of these two components in the plane of the phase plates is shown to produce a variable astigmatic focus. Both spherical and cylindrical phase profiles are demonstrated with good accuracy, and the discrete surface-relief features are shown to cause less than λ/10 wave-front aberration in the transmitted wave front over a 40 mm × 80 mm region.

© 2000 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(050.1970) Diffraction and gratings : Diffractive optics
(220.1000) Optical design and fabrication : Aberration compensation
(220.3620) Optical design and fabrication : Lens system design
(220.3630) Optical design and fabrication : Lenses

Ian M. Barton, Sham N. Dixit, Leslie J. Summers, Kenneth Avicola, and Julia Wilhelmsen, "Diffractive Alvarez lens," Opt. Lett. 25, 1-3 (2000)

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  1. L. W. Alvarez, “Two-element variable-power spherical lens,” U.S. patent 3,305,294 (February 21, 1967).
  2. L. W. Alvarez and W. E. Humphrey, “Variable-power lens and system,” U.S. patent 3,507,565 (April 21, 1970).
  3. L. W. Alvarez, J. Am. Optom. Assoc. 49, 24 (1978).
  4. N. López-Gil, H. C. Howland, B. Howland, N. Charman, and R. Applegate, J. Opt. Soc. Am. A 15, 2563 (1998).
  5. M. Oka, N. Eguchi, and H. Suganuma, “Apparatus and method for compensating coma aberration,” U.S. patent 5,726,436 (March 10, 1998).
  6. I. A. Palusinski, J. M. Sasian, and J. E. Greivenkamp, Proc. SPIE 3482, 96 (1998).
  7. See, for example, H.-P. Herzig, ed., Micro-Optics: Elements, Systems, and Applications (Taylor & Francis, London, 1997).

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