Title :
A Compact, Large-Aperture Tunable Lens with Adaptive Spherical Correction
Author :
Wapler, Matthias C. ; Sturmer, Moritz ; Wallrabe, Ulrike
Author_Institution :
Lab. for Microactuators, IMTEK Univ. of Freiburg, Freiburg, Germany
Abstract :
In this paper, we present the proof of concept a very fast adaptive glass membrane lens with a large aperture/diameter ratio, spherical aberration correction and integrated actuation. The membrane is directly deformed using two piezo actuators that can tune the focal length and the conical parameter. This operating principle allows for a usable aperture of the whole membrane diameter. Together with the efficient actuation mechanism, the aperture is around 2/3 of the total system diameter -- at a thickness of less than 2mm. The response time is a few milliseconds at 12mm aperture, which is fast compared to similar systems.
Keywords :
aberrations; adaptive optics; integrated optics; lenses; membranes; optical focusing; optical tuning; adaptive glass membrane lens; adaptive spherical correction; large-aperture tunable lens; piezo actuators; spherical aberration correction; Apertures; Fluids; Glass; Lenses; Optical refraction; Substrates; Time factors; Adaptive lenses; aspherical optics; wavefront correction;
Conference_Titel :
Optomechatronic Technologies (ISOT), 2014 International Symposium on
DOI :
10.1109/ISOT.2014.39
