title: Zoom lens design using liquid lens for laparoscope.
abstract: Traditional laparoscopic optical systems consisting of about 30 lenses have low optical magnification. To magnify tissue during surgical operations, one must change from one laparoscope to another or use a magnifying adapter between the laparoscope and the sensor. Our work focuses on how to change the sag of a liquid lens while zooming from 1 × zoom, to 2 × , and 4 × in an optical design for a laparoscope. The design includes several lenses and two liquid lenses with variable focal lengths. A pair of laparoscopes for 3-D stereoscopy is placed within a tube 11 mm in diameter. The predicted depth resolution of tissue is 0.5 mm without interpolation at 4 × zoom.
authors: Micro Systems Lab., Samsung Advanced Institute of Technology, Nongseo-dong, Giheung-gu, Yongin-si, Gyeonggido 446-712, South Korea. lswan@samsung.com
authors: Seungwan
authors: S
authors: Lee
authors: Minseog
authors: M
authors: Choi
authors: Eunsung
authors: E
authors: Lee
authors: Kyu-Dong
authors: KD
authors: Jung
authors: Jong-Hyeon
authors: JH
authors: Chang
authors: Woonbae
authors: W
authors: Kim
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D020706:Laparoscopes; D007909:Lenses; D012996:Solutions
chemical_list: D012996:Solutions