Coating process

Details Coating process Coating process

1982-03-08

1984-03-20

Hoffman, James R.

Coating processes

Optical element produced

427164, 427169, 427335, 4274301, G02B 110, B05D 118

Patent

active

044381590

ABSTRACT:
The present invention comprises a method and apparatus for providing a uniform coating on objects such as a lens. A bath of coating solution is provided and the object to be coated is immersed into the solution. The object is then removed into an atmosphere substantially saturated with the coating solution. The object is maintained in the substantially saturated atmosphere for a predetermined time to allow excess coating material to disperse and flow off the surface of the object. The object is then withdrawn from the saturated atmosphere and dried in the conventional manner. The maintenance of the object within the substantially saturated atmosphere for the predetermined time eliminates the formation of puddles and drip lines.

REFERENCES:
patent: 3339562 (1967-09-01), Bradley et al.
patent: 3539381 (1970-11-01), Kayarian
patent: 4007304 (1977-02-01), Dunn et al.

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