Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1987-01-13
1988-07-05
Lindsay, Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 102, 65 111, 65 36, 65 40, 21912125, 21912127, 21912131, 264 14, 350 9618, 373 2, 373 24, C03B 37075, C03B 2309, G02B 600
Patent
active
047552034
ABSTRACT:
A system is described for forming a lens at the end of an optical fiber which extends through a hole in a contact, so the tip of the lens lies at a desired lens position located a predetermined distance rearward of the tip of the contact. The fiber is fixed to the contact at a position wherein the tip of the fiber lies forward of the desired lens position, at about the tip of the contact. The contact is positioned vertically, with the tip of the fiber pointing upwardly, and an arc is passed across the end portion of the fiber, to initially heat and bulge out a location on the fiber spaced rearward of the tip. As the fiber is heated, the tip portion falls into the bulging portion, while the bulging portion moves down, with the heating continued long enough so that the tip of the molten ball of glass lies at the desired lens position.
REFERENCES:
patent: 4243399 (1981-01-01), Khoe et al.
patent: 4345930 (1982-08-01), Basola et al.
ITT Corporation
Lindsay Robert L.
Peterson T. L.
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