Patent · US Active

Edge blackening for optical devices

US11850621B2 · kind B2 · utility

1Cited by

4References

17Claims

0Family size

Assignee

Applied Materials, Inc. · US

Inventors

Kangkang Wang · San Jose, US
Yaseer Arafath Ahamed · Austin, US
Yige Gao · Santa Clara, US
Benjamin B. Riordon · Newburyport, US
Rami Hourani · Santa Clara, US
James D. Strassner · Austin, US
Ludovic Godet · Sunnyvale, US
Thinh Nguyen · Carmel, US

Key dates

Filing date	Nov 24, 2021
Grant date	Dec 26, 2023
Priority date	—
Expiry date	Nov 24, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05D1/28
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

An optical device coating assembly is provided. The optical device coating assembly includes a substrate support operable to retain an optical device substrate. The coating assembly further includes a first actuator connected to the substrate support. The first actuator is configured to rotate the substrate support. The coating assembly includes a holder configured to hold a coating applicator against an edge of the optical device substrate when the optical device substrate is rotated on the substrate support and a second actuator operable to apply a force on the holder in a direction towards the substrate support. The second actuator is a constant force actuator.

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