LASER PROJECTION SYSTEM AND METHOD
First Claim
1. A laser projection system comprising:
- a laser projector configured to project a laser image onto a workpiece;
an optical sensor assembly configured to periodically emit light toward the workpiece and optically detect the location of a plurality of reference targets thereon; and
a computer electrically coupled to the laser projector and the optical sensor assembly, the computer being configured to perform the following method steps;
calculate the location of the workpiece within a geometric coordinate system based on the location of the plurality of reference targets as detected by the optical sensor assembly,cause the laser projector to project a template onto a desired geometric location of the workpiece for a manufacturing operation,monitor for relative movement between the workpiece, the laser projector, and the optical sensor assembly,correct the template being projected onto the workpiece.
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Accused Products
Abstract
A laser projection system for projecting an image on a workpiece includes a photogrammetry assembly and a laser projector, each communicating with a computer. The photogrammetry assembly includes a first camera for scanning the workpiece, and the laser projector projects a laser image to arbitrary locations. Light is conveyed from the direction of the workpiece to the photogrammetry assembly. The photogrammetry assembly signals the coordinates light conveyed toward the photogrammetry assembly to the computer with the computer being programmable for determining a geometric location of the laser image. The computer establishes a geometric correlation between the photogrammetry assembly, the laser projector, and the workpiece for realigning the laser image to a corrected geometric location relative to the workpiece.
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Citations
15 Claims
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1. A laser projection system comprising:
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a laser projector configured to project a laser image onto a workpiece; an optical sensor assembly configured to periodically emit light toward the workpiece and optically detect the location of a plurality of reference targets thereon; and a computer electrically coupled to the laser projector and the optical sensor assembly, the computer being configured to perform the following method steps; calculate the location of the workpiece within a geometric coordinate system based on the location of the plurality of reference targets as detected by the optical sensor assembly, cause the laser projector to project a template onto a desired geometric location of the workpiece for a manufacturing operation, monitor for relative movement between the workpiece, the laser projector, and the optical sensor assembly, correct the template being projected onto the workpiece. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for projecting an image onto a workpiece comprising:
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providing a laser projector configured to project a laser image onto the workpiece; periodically emitting light toward the workpiece for detection by an optical sensor assembly; using the optical sensor assembly for optically detecting the location of a plurality of reference targets supported on the workpiece; calculating the location of the workpiece within a geometric coordinate system based on the location of the plurality of reference targets; causing the laser projector to project a template onto a desired geometric location of the workpiece for a manufacturing operation; monitoring for relative movement between the workpiece, the laser projector, and the optical sensor assembly; and correcting the template being projected onto the workpiece based upon movement of the . - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification