1
Hongwen Ren, Shin Tson Wu: Variable-focus liquid lens. University of Central Florida Research Foundation, Brian S Steinberger, Phyllis K Wood, Law Offices of Brian S Steinberger P A, May 6, 2008: US07369321 (62 worldwide citation)

A variable focus liquid lens is formed using two substrates with at least two through holes in at least one of the substrates. One end of each through hole is covered with a distensible membrane, one on the exterior surface of the substrate and the other on the interior surface. The substrates are s ...


2
Shin Tson Wu, Hongwen Ren: Variable focus liquid lens. Research Foundation of the University of Central Florida, Brian S Steinberger, Law Offices of Brian S Steinberger P A, November 28, 2006: US07142369 (52 worldwide citation)

A liquid-filled variable focus lens cell is disclosed. The liquid lens cell consists of four parts: a clear distensible membrane, a transparent wall member, liquid with a fixed volume stored in lens cell chamber, and an annular periphery sealing ring. The inner surfaces of the annular sealing ring a ...


3
Maillard Mathieu, Liogier D Ardhuy Gaetan, Legrand Julien, Berge Bruno: Electrowetting device. Varioptic, August 8, 2007: EP1816491-A1 (24 worldwide citation)

An electrowetting device comprising a conductive fluid (101) and a non-conductive fluid (102), said fluids being non miscible, and an isolating substrate (103) on which both fluids are in contact and form a triple interface (104), wherein the natural contact angle (105) of the non-conductive fluid o ...


4
Maillard Mathieu, Liogier, D Ardhuy Gaëtan, Legrand Julien, Berge Bruno: Optical electrowetting device. Varioptic, Maillard Mathieu, Liogier, D Ardhuy Gaëtan, Legrand Julien, Berge Bruno, MYON Gérard, August 9, 2007: WO/2007/088453 (20 worldwide citation)

The invention relates to an optical electrowetting device comprising a conductive fluid (5; 101) and a non-conductive fluid (4; 102), said fluids being non miscible, and an insulating substrate (2; 103) on which both fluids are in contact and form a triple interface, wherein the natural contact angl ...


5
Ervin Goldfain, Daniel C Briggs: Medical diagnostic instrument with variable focus liquid lens. Welch Allyn, Hiscock & Barclay, Stephen Rosenholm, June 30, 2009: US07553020 (11 worldwide citation)

A diagnostic instrument includes an illumination system for providing illuminating light and an imaging system for directing the illuminating light to a target and for transmitting light reflected from the target to a viewing location. The imaging system includes an electrically controllable variabl ...


6
Gaëtan Liogier D ardhuy, Mathieu Maillard, Julien Legrand, Bruno Berge: Optical electrowetting device. Varioptic, Osha • Liang, September 7, 2010: US07791814 (7 worldwide citation)

The invention relates to an optical electrowetting device comprising a conductive fluid (5; 101) and a non-conductive fluid (4; 102), said fluids being non miscible, and an insulating substrate (2; 103) on which both fluids are in contact and form a triple interface, wherein the natural contact angl ...


7
Good Timothy A: Barcode scanner/reader having constantly varying focal distance. Metrologic Instruments, Good Timothy A, KITA Gerry K, October 16, 2008: WO/2008/124235 (7 worldwide citation)

A scanner/reader for reading target objects, such as a barcode, that incorporates a variable focus liquid lens whose focal distance is constantly and continuously varied through the lens' predefined focal range provides an efficient way to scan or read a barcode. A driver circuit for the liquid lens ...


8
Amiot Franck, Maillard Mathieu, Liogier, D Ardhuy Gaëtan, Chaput Frédéric: Multi-phase liquid composition and optical lens driven by electrowetting. Varioptic, Amiot Franck, Maillard Mathieu, Liogier, D Ardhuy Gaëtan, Chaput Frédéric, GRAND Guillaume, October 11, 2007: WO/2007/113637 (6 worldwide citation)

The present invention relates to a multi-phase liquid composition comprising a conductive liquid and a non-conductive liquid, wherein a nanoparticle is dispersed in at least one of said liquids. The present invention also relates to an optical lens driven by electrowetting comprising such a multi-ph ...


9
Hee Sung Choi, Ha Yong Jung, Jae Young Bae, Jong Yun Kim, Jeong Ho Yoon, Young Gi Kim, Bae Kyun Kim: Variable focus liquid lens with reduced driving voltage. Samsung Electro-Mechanics, McDermott Will & Emery, December 25, 2007: US07312929 (4 worldwide citation)

The invention provides a variable focus liquid lens using electrowetting, comprising a conductive first liquid and an insulating second liquid. At least one of the first liquid composed of electrolyte and the second liquid composed of insulating liquid contains a surfactant for reducing interfacial ...


10
Berge Bruno: Tri-liquid lens. Varioptic, December 26, 2007: EP1870742-A1 (3 worldwide citation)

The invention concerns a variable focus liquid lens having an optical path through the lens, comprising: a structure comprising first and second electrodes (206, 214) and containing first, second and third immiscible liquids (201-203), wherein said first and second liquids form a first refractive in ...