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How do I prevent laser beams from damaging broadcast camera sensors?
Direct answerAvoid direct concentrated beams hitting camera lenses. Test the effects with the actual broadcast cameras before recording, then adjust power, scan speed and beam zoning, and use safety interlocks that terminate fixed hotspots if the scanners fail.
Practical Protection Steps
- Map camera positions and lens angles first, then design beam paths that stay clear of them
- Run a full camera test with the real lenses before the first recording
- Reduce power or increase scan speed where beams must pass near a lens
- Zone the beam path so high-intensity effects stay in areas no camera can see
- Enable scan-fail protection so output stops when a galvanometer stops moving
Why Scan-Fail Protection Matters
- A stopped scanner turns a moving beam into a single static point with far higher energy
- Scan-fail logic detects the stall and cuts or diverts output within milliseconds
- Interlocks also protect presenters, performers and crew who move between cameras
Camera sensors are more sensitive than the human eye to static beams, so treat every camera position as a safety zone.