Dual Camera Triangulation

In some situations using a single laser line and camera combination, the camera's view of the laser line can be shadowed (occluded) from seeing the full laser line due to the shape or features on the object being measured.   This will result in data being dropped or lost along the laser line.  If this data is important to the application, there is a solution.

Expanding on the triangulation principle to resolve this issue, binocular laser line sensors have two cameras, one on each side of the laser line. Both cameras look at the laser line simultaneously.  In situation where sections of the laser line are blocked from the view of one camera, the other camera will "see" the laser line, filling in the data and eliminating data dropouts.

With the laser and both cameras in the same housing, the alignment of the 3D sensor to the world coordinates is built in at the factory.