Method for forming light-shield coat on lenses

Details Method for forming light-shield coat on lenses Method for forming light-shield coat on lenses

1984-09-26

1987-02-17

Newsome, John H.

Coating processes

Electrical product produced

Welding electrode

427162, 427368, B05D 306

Patent

active

046439110

ABSTRACT:
A method for the formation of a light-shield coat on a peripheral area of an optical lens other than the effective aperture area, which method is constituted by the steps of mounting the lens on a rotatable lens support means effective to rotate the lens about the optical axis thereof with the peripheral area positioned exteriorly of the lens support means, applying to the peripheral area of the lens a photo-setting, black-colored light shielding paint capable of hardening when exposed to ultraviolet rays to form the light-shield coat on the peripheral area of the lens, and radiating ultraviolet rays onto the peripheral area of the lens, while the latter is rotated, to cause the light-shield coat to harden.

REFERENCES:
patent: 2270177 (1942-01-01), Vawryk
patent: 2312206 (1943-02-01), Calbick
patent: 2346810 (1944-04-01), Young
patent: 2760550 (1956-08-01), Kimes
patent: 3258521 (1966-06-01), Francel et al.
patent: 3767457 (1973-10-01), Hubbard et al.
patent: 4197333 (1980-04-01), Leach et al.

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