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Canon Patent Applications: Some IBIS Related Patents
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Canon Patent Applications: Some IBIS Related Patents

Canon has published a slew of patent applications this week and in it, we found some intriguing IBIS related patent applications.  We're going to briefly summarize each one here.


Another patent dealing with the number of calculations necessary to stabilize the image using both OIS (optical IS) and IBIS (In body) stabilization systems running together.  Canon is concerned that this will affect continuous shooting speed, as everything needs to stabilize before you take the image.


Did you know that IBIS has an influence on the shutter mechanism? Yes, that's right - I didn't of it either.  As the sensor moves and rotates with pitch / yaw stabilization, the rear curtain slit may be at a different angle then what is optimum with respect to the sensor current stabilization angle.

The more I read on Canon's IBIS - the more impressed I am with what they considered for a 1.0 release.


This is another patent application describing the issue that when the sensor shifts, so does the peripheral illumination pattern.  This can cause problems for correction, as it's "unbalanced" depending on the direction of the sensor-shift.  Also when the sensor is shifted resolution loss can be apparent in a corner depending on the size and "quality" of the image circle.  This deals with limiting the amount of sensor-shift to an amount that will grant acceptable image quality on a lens by lens basis.


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How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

  1. Go to the Japan Patent Office search page.
  2. If it's a patent application (they are usually in the format of Year-Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
  3. Click on search.
  4. Then click on the patent application number link, and there's the patent application!

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