Glass Laser Window Sealant Technique.
OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
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The patent describes a technique for sealing electrically non-conductive optical windows to electrically non-conductive electron discharge device envelopes, such as laser bodies, without distorting or destroying the optical properties of the window, particularly during sealing-in process at temperatures often in excess of about 350 degrees C. The technique involves optically polishing the mating surfaces of the window and the body, coating said surface or edge of the body with a thin electrically conductive or semiconductive sealant, placing the window over the aforesaid edge and applying a high unidirectional potential between the sealant and the window while heating the body and window in an oven to a high temperature which is below the softening temperature for the window and body.
- Adhesives, Seals and Binders