Patent · US Expired

Distribution mask for depositing by vacuum evaporation

US6375747B1 · kind B1 · utility

2Cited by

3References

24Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Olivier Beinat · St. Petersburg, US
Dominique Conte · Charenton-le-Pont, FR

Key dates

Filing date	Oct 12, 2000
Grant date	Apr 23, 2002
Priority date	—
Expiry date	Oct 12, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29D11/00865
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A distribution mask including at least two separate blanking panels (22), one of which is mounted mobile. The two blanking panels (22) are substantially coplanar, and, controlled by a common control unit (23), both mounted continuously mobile between two extreme positions, namely, a close position, and for which the space (E) between them is minimal, and a spaced position, for which the space (E) is on the contrary at its maximum. The invention is particularly applicable to antiglare treatment of ophthalmic lenses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.