A solid optical component cut with multiple flat faces, traditionally used to multiply an image. In laser systems, rotating polygonal mirrors (polyhedron scanners) are used to rapidly sweep a laser beam across a target, such as in barcode scanners, lidar systems, and laser printers.
Heard on the job
Check the alignment on the rotating polyhedron, the scan line is starting to wobble at high speeds.
Also heard as
- polygon mirror
- polyscope