Micropumps for the new Canon patent on liquid lens - Digital Photographers

by Roberto Colombo, published June 3, 2013, at 10:34 am

Into “Canon has recently filed a new patent: in this case, the liquid lens at the center of attention. A micropump system is the solution Canon “

Into the world of patents allows you to give an interesting view on the issues on which they are to work teams research and development of businesses, large and small. Most of the patents do not get to finalizing a direct, although it remains in the baggage of intellectual property of the companies, then maybe returning profits to legal action or similar. Canon seems very active in recent years in the search for new technologies. We have recently seen how it has filed a patent related to sensors ‘layered’ no Bayer filter and operating similarly to the Foveon X3 used by Sigma.

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Into One of the latest patent covers a technology that came to light for a new design of liquid lens , a theme that cyclically returns to make itself heard. Generally using two liquid and with the application of an electric current when modifying the curvature at the interface, but the patent Canon has a completely different approach based on a system of micropumps , which should allow a more accurate and stable control of the curvature of the liquid lens. By controlling the pumps by the amount of liquid inside the chamber it is possible to change the curvature of the lens.

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Into the patent micropumps working on two states On / Off and the change of curvature takes place through the power of several pumps in series. Canon seems to propose design already quite complex, with concentric rings of micropumps. At the moment it is not known what would be the scope of the patent, generally this type of technology is directed to small items, such as the modules used in mobile phones and surveillance cameras.

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