Canon Patent Application new method of creating a circular aperture

CanonNews / Thursday, April 5, 2018

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Canon Patent Application new method of creating a circular aperture

By using different shaped blades and a different aperture mechanism, Canon looks to create circular apertures at any f-stop without increasing the number of mechanical parts to do so.

This would be kind of nice to have, except some may not like what it does to sunstars.

Canon Japan Patent Application 2018-054925

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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.

Go to the Japan Patent Office search page.

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.

Click on search.

Then click on the patent application number link, and there's the patent application!

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Canon Patent Application new method of creating a circular aperture

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