This post may contain affiliate links(s). An affiliate link means I may earn advertising/referral fees if you make a purchase through my link,
without any additional cost to you. It helps to keep this site afloat. Thank you in advance for your support. If you like what we do here, maybe buy me a
coffee.
Patent Application for new lens coating
This patent look to be expanding on ASC (air sphere Coatings)
To provide an optical member having an anti-reflection film with high strength, uniform refractive index distribution, and low scattering, and a manufacturing method for the optical member.
This actually looks like little bubbles as shown by Canon's image below:
Japan patent application, 2017-167271