Patent: A New Type of ASC Lens Coating

A Canon patent application shows what looks to be expanding on ASC (air sphere coating). As you can see in the image below, ASC in fact looks like little bubbles From Japan Patent Application: 2017-167271 To provide an optical member having an anti-reflection film with high strength, uniform refractive index distribution, and low scattering, and a Read more...

patent type asc lens coating

2017-12-27 18:22

patent type → Результатов: 1 / patent type - фото