Canon Patent Applicaton: Diffractive Optics

Canon has never stopped looking to advance diffractive optic elements.  I'm hoping that this sooner than later translates into some super uber cool Canon RF lenses.

This patent applications seems to be improving the transmittance of the diffractive element over a wide wavelength range.  It appears that this diffractive element is using ITO (indium tin oxide) fine particles.

Japan Patent Application 2020-086106

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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