Loading patent…
OwnerAlfonso Artal, Antoni Mas +3inventors
InventorsAlfonso Artal, Antoni Mas, Eva Berasategui, Juan Lopez, Ricardo Serrano
Estimating the term…
The invention relates to a lens-coating gas dispenser and to the corresponding coating device, lens and method. The inventive dispenser consists of a flat outlet plate comprising a plurality of outlet holes which are distributed using the following method consisting in: [a] defining an auxiliary surface; [b] positioning first points on a first flat surface, such that the points are distributed with a constant surface density, said first surface resting on the lower edge of the auxiliary surface; and [c] tracing projection lines from a projection origin, which pass through each of the first points and continue to meet the auxiliary surface, thereby defining projected points on the auxiliary surface, and, finally, tracing downwards from the projected points as far as the flat outlet plate, such as to define the position of the outlet holes.
Gas distributor for coating a lens that defines a surface to be coated and an optical axis, characterised in that it comprises a flat outlet plate (PS) with a plurality of outlet holes, where said flat outlet plate (PS) has a plate centre defined and where the distribution of said outlet holes on said plate can be obtained as follows:
Lens having a curvature radius less than 350 mm on at least one of the points on its convex face and a coating on its convex face having a maximum thickness difference of between ±2.5%.
Dependencies are inferred from the claim text.