Canon Patent Application: New improved shutter

Until we have global shutter cameras, even with mirrorless, we have the need for mechanical shutters.

This patent application describes a shutter with a low power requirement and a fast release time lag.  No mention if it is quieter, which is always nice as well.

From the patent description;

This embodiment provides a shutter apparatus and an image capturing apparatus, which can restrain a power consumption amount with a shorter release time lag 

A shutter apparatus according to one aspect of the present invention includes a shutter base plate having an opening, a light shield movable between a closed state for closing the opening and an open state for opening the opening, a cam member rotatable in a first angle range, a second angle range, and a third angle range between the first angle range and the second angle range, the cam member that rotates in the third angle range rotating the light shield, a motor configured to drive the cam member, a forcing member configured to force the cam member so as to rotate the cam member from the first angle range to the third angle range, and a restricting member configured to restrict the forcing member from forcing the cam member in at least part of the first angle range. 

US Patent Application 20180196333

Richard CanonNewsRichard CanonNews

Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on infrared photography. Richard is the founder and editor of CanonNews since 2017, and has worked as a writer on CanonRumors and other websites in the past.

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