Light beam positioning system

Details Light beam positioning system Light beam positioning system

1988-04-25

1990-07-10

Ruggiero, Joseph

Boots, shoes, and leggings

21912178, 318640, 36457104, G06F 1546, G01C 2500

Patent

active

049410822

ABSTRACT:
A light beam positioning system (10) has the capability of generating accurately positioned beam paths at programmed velocities between any two positions on a target surface (18). The beam positions correspond to beam position and velocity command data processed by a system control computer (22). The invention employs an error correction processor (52) that receives X and Y position coordinate signals (X and Y signals) produced by a conventional position data generator and develops compensated X and Y position coordinate signals (X.sub.c and Y.sub.c signals) for delivery to a light beam positioner (12). The X.sub.c and Y.sub.c signals are derived from a calibration map of an addressable field representing the positions to which the light beam can be commanded on the target surface. The X.sub.c and Y.sub.c signals represent polynominal functions of the X and Y signals and offset beam position errors resulting from the light-directing properties of the system optical components (26, 28, 30). The error correction processor allows the use of a single command data file in the system control computer,

REFERENCES:
patent: 4584455 (1986-04-01), Tomizawa
patent: 4626649 (1986-12-01), Dupeyrat et al.
patent: 4641071 (1987-02-01), Tazawa et al.
patent: 4711573 (1987-12-01), Wijntjes et al.
patent: 4791591 (1988-12-01), Asanuma et al.
patent: 4812726 (1989-03-01), Benii et al.
Teradyne M218 Memory Repair System, p. 5, 1984.
Daniel Winkler, "Status quo beim Laserbeschriften", Techica, No. 37, 2/1988, pp. 54-56.

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