Faro Technologies, Inc.

Laser Projection Technologies, Inc.

Mks Instruments, Inc.

Andover Photonics, Inc.

Masoud Mohazzab

Arkady Savikovsky

Steven P Kaufman

Joel H Stave

Kari J Mettinen

Robert E Bridges

Michael Cafferty

Kelley Fletcher

Todd P Wilson

Liang Chen

A method for verifying performance of a light projector includes establishing a reference artifact that include reflective makers and an interior edge line, determining with a laser-tracker-based three-dimensional (3D) measuring system 3D coordinates of the reflective targets and the interior edge line, determining with the light projector angles to the reflective markers with the light projector, and projecting with the light projector a pattern of light onto the interior edge line.

System and method for verifying projection accuracy

A laser projection system is provided. The laser projection system includes at least one laser projector having a laser source and a laser detector. The system includes processors for executing computer instructions, the processors are coupled to the laser projector, the computer readable instructions include determining the component is stationary based on the emitting of a first laser light towards a reference target on the component and receiving a portion of the first laser light by the laser detector. In response to the determining the component is stationary: determining a transformation for mapping a first coordinate system of the laser projector to a second coordinate system of the component and forming a visual pattern on the component. The computer instructions further include determining that the component is in motion based on receiving a portion of the first laser light by the laser detector and removing the visual pattern.

3D laser projection, scanning and object tracking

A virtual laser projection system and method includes one or more measuring laser projectors, one or more non-measuring laser projectors, an array of reference targets, and a computing system. The one or more measuring laser projectors and one or more non-measuring laser projectors operate under common control of the computing system to register their respective locations using the array of reference targets, detect and locate features of a work object to be illuminated, convert all location information into a common coordinate system, and illuminate the work object with laser light beams using the common coordinate system.

Virtual laser projection system and method

Techniques are disclosed for tracking the position of moving parts and assemblies using 3D laser projection, and projecting templates and other information onto the parts and assemblies based on position. The projected template may then be used, for example, to assist in fabrication of an assembly by indicating where to put a next component or layer, or to assist in post-fabrication inspection of an assembly by indicating where the various components or layers should have been placed. Reference targets can be used as fiducial points for aligning a laser projector with the work piece in question. When the work piece rotates or is otherwise moved to a next manufacturing or inspection position, the relative position of the laser projector and the work piece is updated by bucking-in to the reference targets. The laser projector can then project patterns or other information onto the work piece at the appropriate locations.

A system for measuring a shape of a target object includes a photonic integrated circuit and a light detector. The photonic integrated circuit includes a phase shifter configured to change a phase difference between a first portion of light and a second portion of light within the phase shifter, and an output element configured to output the light from the phase shifter directly toward the target object. The output element includes a first output waveguide configured to act as a first point source; and a second output waveguide configured to act as a second point source. The light detector is positioned to receive reflected light from the target object.

Shape measurement using microchip based fringe projection

A retroreflector adapted to be mounted to a motor including a first, second, and third petal having a mutually perpendicular first, second, and third reflective surface that form a retroreflective surface. A base is directly connected to at least one of the first, second, or third petal so as to minimize a vertical profile of the retroreflector. The base is removably connected to the motor with a fastening mechanism. A spatial distance between the fastening mechanism and at least one of the first, second, or third petal minimizes a stress from the motor propagated to the retroreflective surface.

Growing community of inventors

Andover, MA, United States of America

Masoud Mohazzab