Xiaomi Mi 4K Laser Projector 150” User Manual page 11

Projection Distance & Screen Size
Determine the distance between the projector and the wall or screen according to the desired screen size.
Projection Distance (D) Relative Height (H)
Screen Dimensions (SD)
80"
90"
100"
120"
150"
Note: The dimensions in the table above are for reference only, they are approximate and may slightly differ from the actual values.
SD
Projection screen
14 cm
19 cm
24 cm
34 cm
49 cm
Screen Dimensions (SD):
The diagonal size of the projection screen (in inches).
29 cm
Projection Distance (D):
32 cm
The distance between the projector and the wall or screen (in cm).
35 cm
Relative Height (H):
41 cm
The distance from the bottom of the projector to the
bottom edge of the projected image (in cm).
50 cm
Projection screen