 Overview |
|
|
|
The liquid lenses that we develop are based on the electrowetting phenomenon described below :
a water drop is deposited on a substrate made of metal, covered by a thin insulating layer. The voltage applied to the substrate modifies the contact angle of the liquid drop.
The liquid lens uses two isodensity liquids, one is an insulator while the other is a conductor. The variation of voltage leads to a change of curvature of the liquid-liquid interface, which in turn leads to a change of the focal length of the lens. |
|
|
 Intellectual
Property |
Varioptic has pioneered the electrowetting
technology since its founding and is now at the forefront
of all advances in this field. Varioptic owns 2 fundamental
global patents on the technology and is dedicating much
of its resources to improve and patent new advances in
this technology. |
| Key
competitive advantages |
Large inverse focal length range
Ruggedness (No moving parts )
Fast response
Very good optical quality
Good transparency in the visible range
Wide Operating temperature range
Very good stability of the optical axis
Extremely low electrical consumption
Simple low-cost construction
|
| |
