Method and apparatus for selective creation of a decor on hollow

Details Method and apparatus for selective creation of a decor on hollow Method and apparatus for selective creation of a decor on hollow

1988-01-11

1989-06-27

Albritton, C. L.

Electric heating

Metal heating

By arc

21912168, 21912179, 21912180, B23K 2600

Patent

active

048432075

ABSTRACT:
A method and apparatus for creation of a decor on hollow axially symmetrical products is primarily useful in the glass industry. A laser beam acts from the interior of a hollow twin layer product through an internal sufficiently permeable layer to an external highly absorbent layer in order to cause a phase change of the external layer. The apparatus includes a laser, a lens, a mirror situated on the axis of symmetry of the product and also drives for translational movement of the lens and of the mirror and for a rotational movement of the mirror, controlled by a microcomputer or an optical pick-up device with a sample of the decor. A laser beam with a wavelength of the spectrum between 0.5 to 2.0 .mu.m is best suited for this purpose.

REFERENCES:
patent: 3772496 (1973-11-01), Harendza-Harinxma
patent: 4092518 (1978-05-01), Merard
patent: 4564737 (1986-01-01), Burke et al.
patent: 4568814 (1986-02-01), Hamasaki et al.

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