Journal
JOURNAL OF DISPLAY TECHNOLOGY
Volume 1, Issue 1, Pages 151-156Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JDT.2005.853268
Keywords
Adaptive optics; liquid crystal (LC) devices; LC displays; microlens arrays; tunable focal length
Funding
- Defense Advanced Research [W911NF04C0048]
Ask authors/readers for more resources
A flat microlens array whose focal length can be switched from positive to negative by electric field is demonstrated experimentally and confirmed by computer simulations. To generate the required gradient refractive index, an inhomogeneous electric field is created by a spherical indium-tin-oxide (ITO) electrode which is imbedded in the top flat substrate. The bottom substrate has a planar ITO electrode on its inner surface. A thin polymeric layer is overcoated on top of the spherical ITO to create a flat surface. The disclination lines are eliminated. Because of the employed dual-frequency liquid crystal, the microlens array has fast response times.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available