Method and apparatus for making a lid with an optically transmissive window
AssigneeRaytheon Company
InventorsMark B. Hanna, Kyle W. Nix
Life of this patent
Estimating the term…
Abstract
A metal plate (126) has a plurality of openings (127) extending through it, and is cleaned using a wet hydrogen process (157). Glass windows (106) are then placed in the openings, and are each fused to the metal plate by heat (231) in a manner so that each window projects outwardly on each side of the plate. Both sides of each window are then simultaneously ground and polished (232). Exposed surfaces of the metal plate are electroplated with nickel and gold (236). One or more coatings (41, 46, 47) are applied to one or both sides of each window. Several sections are then cut from the assembly, each of which can serve as a lid (17) for an optical apparatus (10).
Claims8
A method, comprising the steps of:
- forming a plurality of windows which are each transmissive to radiation having a predetermined wavelength;
- fabricating a plate with a plurality of openings therethrough;
- fixedly securing each said window to said plate in a manner so that an annular seal is provided between an annular portion of the window extending along a periphery thereof and an annular portion of the plate extending around the opening;
- simultaneously processing a respective surface on each of said windows secured to said plate;
- and
- followed by the step of forming on one surface of each said window an opaque layer having an aperture therethrough;
- thereafter cutting from said plate a plurality of sections which each include a respective one of said windows and a respective one of said annular portions of said plate.
Dependencies are inferred from the claim text.