Pictures on FluidFocus

If you want to download high-resolution versions of the pictures below, please click at the thumbnail. The use of the pictures is free but in publications the source of these pictures must be mentioned. The source can be found below the caption of the pictures.
  
  Caption & Acknowledgement of source
17 x 12 cm, 300 dpi, 539 KB 
(A) Schematic cross section of the FluidFocus lens principle. (B) When a voltage is applied, charges accumulate in the glass wall electrode and opposite charges collect near the solid/liquid interface in the conducting liquid. The resulting electrostatic force lowers the solid/liquid interfacial tension and with that the contact angle θ and hence the focal distance of the lens. (C) to (E) Shapes of a 6-mm diameter lens taken at different applied voltages.

Photo: Philips
17 x 17 cm, 300 dpi, 1302 KB 
Researchers show the miniature variable lens and the camera that contains the lens.

Photo: Philips