Scan type laser marking device including a scanning speed settin

Details Scan type laser marking device including a scanning speed settin Scan type laser marking device including a scanning speed settin

1997-10-28

2000-05-09

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

358296, 358250, B41J 247

Patent

active

060610816

ABSTRACT:
A scan type laser marking device which scans the surface of an object conveyed in a predetermined area and applies a laser beam to the surface of the object to form a mark on the surface of the object, comprising an area storing section for storing the area; a start point coordinate storing section for storing coordinates of an irradiation start point in the area, the irradiation start point being located upstream relating to the direction of conveyance of the object; an end point coordinate storing section for storing coordinates of an irradiation end point in the area, the irradiation being located downstream relating to the direction of conveyance of the object; a mark reference point section for storing the coordinates of a reference point on the mark; and speed setting mechanism for setting scanning speeds so that a marking operation is started when the mark reference point reaches the irradiation start point, and is ended when the mark reference point reaches the irradiation end point.

REFERENCES:
patent: 4285012 (1981-08-01), Ohara et al.
patent: 4707709 (1987-11-01), Isilibes
patent: 4852020 (1989-07-01), Morita
Patent Abstracts of Japan, vol. 14 No. 32, JP-A-01 266749 (abstract), Oct. 24, 1989.
Patent Abstracts of Japan, vol. 7 No. 141, JP-A-58 053444 (abstract), Mar. 30, 1983.

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