Laser Projector Speckle Test
Flat fields make laser speckle (glittery grain) most visible - green usually shows it strongest.
laser-speckle-test.mp4
MP4 · 1.1 MB
Resolution: 1920x1080
Frame rate: 30fps
Duration: 5m 8s
Format: MP4 (H.264, silent)
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Common use cases
Projector installation and focus
Fine-tune focus, zoom and lens position before finalizing a projector mount.
Keystone and convergence correction
Check geometry and color convergence after any lens shift or keystone adjustment.
Frequently asked questions
- What surface should I project on?
- A flat, neutral-gray or white screen gives the most accurate result; textured or off-white walls will distort the pattern.
- Do I need to dim the room?
- Yes - projector test patterns are most accurate with reduced ambient light, similar to normal projector viewing conditions.