Nonmechanical bifocal zoom telescope

Pouria Valley; Mohammad Reza Dodge; Jim Schwiegerling; Gholam Peyman; N. Peyghambarian

doi:10.1364/OL.35.002582

Nonmechanical bifocal zoom telescope

Pouria Valley, Mohammad Reza Dodge, Jim Schwiegerling, Gholam Peyman, N. Peyghambarian

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

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 4x. 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.

Original language	English (US)
Pages (from-to)	2582-2584
Number of pages	3
Journal	Optics letters
Volume	35
Issue number	15
DOIs	https://doi.org/10.1364/OL.35.002582
State	Published - Aug 1 2010

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.35.002582

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AU - Dodge, Mohammad Reza

AU - Schwiegerling, Jim

AU - Peyman, Gholam

AU - Peyghambarian, N.

PY - 2010/8/1

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Nonmechanical bifocal zoom telescope

Abstract

ASJC Scopus subject areas

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