Open AccessTunable liquid-filled lens integrated with aspherical surface for spherical aberration compensation
Author(s) -
Yu Huang,
Guangya Zhou,
Hui Min Leung,
Fook Siong Chau
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.009945
Subject(s) - optics , lens (geology) , spherical aberration , materials science , diamond turning , lithography , focal length , fabrication , cylindrical lens , diamond , physics , medicine , alternative medicine , pathology , composite material
A novel liquid-filled lens design is presented. During fabrication, high precision single point diamond turning (SPDT) is introduced into standard soft lithography process to fabricate an aspherical surface constituting one end of lens. This enables the spherical aberration associated with the operation of the conventional liquid-filled lenses to be compensated for. Through flexibly optimizing this surface contour, it can be designed to work within particular working regions with improved optical quality. At the same time, the deformable elastic membrane is still adopted at the other end of the lens, thus preserving the high focal length tunability. This proof of concept and the performance of the proposed lens have been demonstrated using the lateral shearing interferometry experiment..