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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 15 — Aug. 1, 2010
  • pp: 2582–2584

Nonmechanical bifocal zoom telescope

Pouria Valley, Mohammad Reza Dodge, Jim Schwiegerling, Gholam Peyman, and N. Peyghambarian  »View Author Affiliations


Optics Letters, Vol. 35, Issue 15, pp. 2582-2584 (2010)
http://dx.doi.org/10.1364/OL.35.002582


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Abstract

We report on a novel zoom lens with no moving parts in the form of a switchable Galilean telescope. This zoom telescope consists of two flat liquid-crystal diffractive lenses with apertures of 10 mm that can each take on the focal lengths of 50 and + 100 cm , with a spacing of 50 cm and, hence, a zoom ratio of 4 × . The lenses are driven using a low-voltage ac source with 1.6 V and exhibit millisecond switching times. The spectral characteristic of this diffractive zoom system is evaluated for light sources of various bandwidths. Potential applications for this technology include a zoom lens with no moving parts for camera phones and medical imaging devices.

© 2010 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(110.6770) Imaging systems : Telescopes
(230.3720) Optical devices : Liquid-crystal devices
(050.1965) Diffraction and gratings : Diffractive lenses

ToC Category:
Optical Devices

History
Original Manuscript: April 30, 2010
Revised Manuscript: June 27, 2010
Manuscript Accepted: July 2, 2010
Published: July 26, 2010

Citation
Pouria Valley, Mohammad Reza Dodge, Jim Schwiegerling, Gholam Peyman, and N. Peyghambarian, "Nonmechanical bifocal zoom telescope," Opt. Lett. 35, 2582-2584 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-15-2582


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References

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