[etik]

> They may use absorbing substrate, or may add a backside coating.

Yup, since the optic is planar it can integrate with backend coating processes

> Contact image sensors ... No clue how this relates to meta-lenses.

I'm also not sure how "contact" got into the copy

> I suspect it's just a bad diagram. Their barrel design is impossible to manufacture.

Yea, the barrels end up looking like more traditional barrels

Source: Metalenz CTO

[itishappy]

Neat, thanks for the reply! Impressive tech you've got.