Method and apparatus for subdividing a gas filled glass tube

Details Method and apparatus for subdividing a gas filled glass tube Method and apparatus for subdividing a gas filled glass tube

1976-07-09

1977-08-30

Kellogg, Arthur D.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65112, 65155, 65270, 65271, C03B 3308

Patent

active

040452018

ABSTRACT:
An elongated glass tube light source containing a luminophor and a radioactive gas is subdivided into a plurality of light sources by a plurality of laser beams directed at the tube at spaced points along the length of the tube. The laser beams are scanned back and forth transversely of the length of the tube to heat the tube and fuse the glass at each of the spaced points. The tube is rigidly supported on either side of each of the points to hold the tube stationary during the cutting operation. A single source of a continuous laser beam is divided into a plurality of beams by beam splitters. Mirrors direct the beams to the spaced points along the length of the tube and mirrors are oscillated to provide the desired scanning motion of the beams across the width of the tube.

REFERENCES:
patent: 3318512 (1967-05-01), Linlor
patent: 3453097 (1969-07-01), Hafner
patent: 3701880 (1972-10-01), Rively et al.
patent: 3817733 (1974-06-01), Thuler
patent: 3839005 (1974-10-01), Meyer

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