NEC Display Solutions of America, Inc.
PX1005QL Installation Guide
Desktop and Ceiling Mount Rev 1.2
www.necdisplay.com PX1005QL Page 3 of 12
Formulas: 16:9 Aspect Ratio (UHD)
The Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image size
varies. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below to
calculate all screen dimensions. Plug in the image width for “W” in the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2 and 3:
Projection Formulas: Definitions: 16:9 Screen Formulas
NP39ML-4K: A=C-33 .0 W = Image Width W = H x 16/9
B=0.588*W H = Image Height (size) H = W x 9/16
C=(0.351*W)+2.362 C = Throw distance Screen Diagonal = W x 18.358/16
D=E-8.5
E=0.310*W
NP39ML-4 Installation
inches inches inches inches inches inches inches inches
107 93 52 2 55 35 20.9 29.4
113 98 55 4 58 37 22.5 31.0
130 113 64 9 67 42 27.2 35.7
137 119 67 11 70 44 29.1 37.6
164 143 80 20 84 53 36.5 45.0
189 165 93 27 97 60 43.4 51.9
208 181 102 33 107 66 48.6 57.1
226 197 111 38 116 71 53.5 62.0
270 235 132 52 138 85 65.6 74.1
300 261 147 61 154 94 50.1 58.6
350 305 172 76 179 109 87.6 96.1
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