
Proceedings Paper
Modeling and design of a tunable refractive lens based on liquid crystalsFormat | Member Price | Non-Member Price |
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Paper Abstract
We show the modeling, design and fabrication for a tunable refractive lens based on liquid crystals. The lens has about
80 rings of transparent ITO conductor with an inter-ring resistor network. The width of each electrode is calculated to
have maximum phase step within each electrode region about 1/8 λ. The gap between any 2 adjacent electrodes is 3 μm.
The active diameter is about 4.7 mm, and our lens has a substrate gap of 10 μm, filled with a LC material of a large
birefringence of Δn = 0.27. Through a via in a SiO2 layer deposited on the ITO pattern, we run metal lines to every 10th ring electrode for establishing the voltage profile, which is calculated by our simulation, taking into account the details
of the electrode structure, the properties of the LC material used, and the desired focal length. To characterize the optical
performance: we use a Mach-Zehnder interferometer to obtain the actual phase profile across the lens aperture, which
fits the calculation very well in parabolic shape. An eye chart image through the lens is also taken, which shows very
good resolution and contrast.
Paper Details
Date Published: 17 January 2011
PDF: 8 pages
Proc. SPIE 7944, Optoelectronic Interconnects and Component Integration XI, 79440S (17 January 2011); doi: 10.1117/12.876221
Published in SPIE Proceedings Vol. 7944:
Optoelectronic Interconnects and Component Integration XI
Alexei L. Glebov; Ray T. Chen, Editor(s)
PDF: 8 pages
Proc. SPIE 7944, Optoelectronic Interconnects and Component Integration XI, 79440S (17 January 2011); doi: 10.1117/12.876221
Show Author Affiliations
Liwei Li, Kent State Univ. (United States)
Lei Shi, Kent State Univ. (United States)
Doug Bryant, Kent State Univ. (United States)
Lei Shi, Kent State Univ. (United States)
Doug Bryant, Kent State Univ. (United States)
Tony Van Heugten, eVision (United States)
Dwight Duston, eVision (United States)
Philip J. Bos, Kent State Univ. (United States)
Dwight Duston, eVision (United States)
Philip J. Bos, Kent State Univ. (United States)
Published in SPIE Proceedings Vol. 7944:
Optoelectronic Interconnects and Component Integration XI
Alexei L. Glebov; Ray T. Chen, Editor(s)
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