Ultra-short-throw systems can produce a large image in a compact room, but small positioning errors are highly visible. Screen and projector locations should be planned as one system.
Begin with the Projector Installation Chart
Each UST model has specific vertical and horizontal offsets. Use the manufacturer’s installation chart for the exact image size. Do not estimate from another model, even when both projectors have similar throw-ratio specifications.
Calculate the Finished Screen Height
Determine the comfortable eye line from the main seating position, then check clearance above the cabinet or projector platform. The bottom of the visible image must allow space for the projector body, ventilation and optical offset.
For meeting rooms, also consider visibility over tables and seated participants. For residential installations, avoid placing the image so high that viewers must tilt their heads upward.
Cabinet Depth and Projector Position
The projector may need to sit farther from the wall than expected because distance is often measured from the lens or a defined reference point, not the back of the chassis. Allow room for cables, power plugs and ventilation. Adjustable projector trays make final alignment easier.
Wall Flatness and Screen Assembly
UST light reveals waves, twists and uneven tension. Use a rigid, accurately assembled fixed frame or a properly tensioned motorized system. Check the wall with a long level before mounting. A frame pulled against an uneven surface can distort the image.
Correct Screen Orientation
Directional CLR and Fresnel surfaces have a defined top and bottom. Follow labels and installation instructions. Keep the optical surface clean and avoid creasing, pressing or rubbing it with abrasive materials.
A Reliable Alignment Sequence
- Level and square the screen frame.
- Place the projector on a level, stable platform.
- Adjust physical position before using digital correction.
- Match the image corners using small movements.
- Use keystone or geometric correction only for minor finishing adjustments.
Pre-Handover Checklist
Test focus across all corners, image uniformity, ventilation, remote control, cable strain relief and screen stability. Save the projector settings only after the mechanical installation is complete.
For commercial projects, record final measurements and photograph the installation. These details simplify future service and replacement planning.
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