Laser marking device for continuous marking and for compensating

Details Laser marking device for continuous marking and for compensating Laser marking device for continuous marking and for compensating

1994-12-07

1997-02-25

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358496, G06F 1500

Patent

active

056066473

ABSTRACT:
A laser marking device for describing geometric forms such as characters and symbols including at least one line element on a surface that is being irradiated with laser light for two-dimensional scanning, comprises: a laser source; scanning optics for allowing the laser light from the laser source to be deflected two-dimensionally; and a control system for controlling both the ON/OFF operation of the laser source and the deflecting operation of the scanning optics. The control system includes ROM which stores graphic data on the line elements, CPU which retrieves the graphic data from ROM and constructs a command for graphic description, GDC which receives the command and constructs both coordinate data on a plurality of points of locus and laser ON/OFF data, and line memory which, in response to a WRITE command from GDC, receives the coordinate data and laser ON/OFF data while outputting the former to the scanning optics and the latter to laser source at a given speed.

REFERENCES:
patent: 4285012 (1981-08-01), Ohara et al.
patent: 4918435 (1990-03-01), Ryouki et al.
patent: 4978849 (1990-12-01), Goddard et al.
patent: 5201027 (1993-04-01), Casini
patent: 5375205 (1994-12-01), Motoyama et al.
patent: 5473751 (1995-12-01), Ohuchi
Patent Abstracts of Japan, vol. 14 No. 32, JP-A-01 266749 (abstract).
Patent Abstracts of Japan, vol. 7 No. 141, JP-A-58 053444 (abstract).

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