En masse process for cleaning thin polarizing glass devices
AssigneeCorning Incorporated
InventorsJeffrey M. King, Leroy R. Morse, Hoa T. Dempsey, Erika L. Stapleton
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Abstract
A method for en masse cleaning of thin polarizing glass devices involving the steps of using a cleaning vessel possessing a vertical side wall, and a porous shelf attached to the vertical side wall to form an annular cavity for receiving a plurality of the thin polarizing glass devices and, exposing the cleaning vessel containing the thin polarizing glass devices to washing, rinsing, drying steps to remove organic and inorganic matter from the surfaces of the polarizing glass devices.
Claims40
A method for chemically cleaning en masse thin polarizing glass devices comprising the steps of:
- providing a cleaning vessel possessing a vertical side wall and a porous shelf secured to said vertical side to form a cavity for containing a plurality of polarizing glass devices;
- loading said polarizing glass devices into said cleaning vessel;
- washing said polarizing glass devices contained in said cleaning vessel in an organic solvent;
- washing said polarizing glass devices contained in said cleaning vessel in aqueous-based detergent;
- rinsing said polarizing glass devices contained in said cleaning vessel in a first rinse of high-purity water;
- rinsing said polarizing glass devices contained in said cleaning vessel in a dilute mineral acid rinse;
- rinsing said polarizing glass devices contained in said cleaning vessel in a second rinse of high-purity water;
- drying said polarizing glass devices contained in said cleaning vessel in an oven;
- and,
- unloading said polarizing glass devices from said cleaning vessel.
A method for removing organic and inorganic material from polarizing glass devices en masse, the method comprising the steps of:
- a) providing a cleaning vessel having a cavity and a porous support for holding said glass devices;
- b) washing said glass devices with an organic solvent in said cleaning vessel;
- c) washing said glass devices with an aqueous detergent;
- d) rinsing said glass devices with a first rinse of high-purity water;
- e) rinsing said glass devices with a dilute mineral acid rinse;
- and
- f) rinsing said glass devices with a second rinse of high-purity water.
Dependencies are inferred from the claim text.