Saturday, June 11, 2011

Cambridge Mechatronics Proposes OIS Performance Measure

Cambridge Mechatronics (CML) proposes a performance measure for image stabilization systems, described in the company's whitepaper here. Ben Brown, the paper's author, presents nice graphs of measured handshake:

One can see that a long term handshake fits within +/-0.5 deg range. I seem to recall some old Kodak data saying it's more like +/-2 deg, but this should be very camera-dependent. In any case, Cambridge Mechatronics actuator shows impressive capability to reduce it and even compared with a Canon 70-200mm f/4L SLR lens.

The paper concludes:

"The performance of CML’s 8.5mm x 8.5mm SMA OIS camera-Tilt (SOT) actuator offers around 2 stops more suppression than the Canon 70-200mm lens. This is most likely due to the high resonant frequency afforded by the high stiffness of the SMA actuator and the small mass of miniature cameras. This is an advantage that miniature cameras have over larger cameras which will allow OIS to have a very significant performance impact in smartphones."

CML SMA Camera Module, 8.5mm x 8.5mm, AF + OIS

Thanks to DW for sending me the link!

No comments:

Post a Comment

All comments are moderated to avoid spam and personal attacks.