SUMMARY
The discussion focuses on the use of a 6-facet polygonal mirror in a scan system designed without lenses. Key formulas discussed include the scan angle, the distance between the polygon and the scan plane, and the total length of the scan line. Phil Hobbs' book "Building Electro-Optical Systems" is recommended for geometric treatment of the problem, noting that a 6-facet mirror provides a total angular scan of 4π/6. The conversation also highlights the importance of f-θ lenses for converting constant angular velocity scans to constant linear velocity scans.
PREREQUISITES
- Understanding of polygonal mirror mechanics
- Familiarity with optical design principles
- Knowledge of angular velocity and linear velocity concepts
- Basic grasp of geometric optics
NEXT STEPS
- Research the geometric principles in "Building Electro-Optical Systems" by Phil Hobbs
- Explore the use of f-θ lenses in optical systems
- Study the calculations for scan angle and distance in polygonal mirror systems
- Investigate the effects of facet count on scan performance
USEFUL FOR
Optical engineers, system designers, and researchers involved in developing scan systems without lenses will benefit from this discussion.