NEC Display Solutions of America, Inc.
V332X/V332W/V302H Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com V332X/V332W/V302H Page 3 of 9
Formulas
The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width
for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for “W” in
the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2:
Definitions: 16:10 Screen Formulas:
W = Image Width W = H x 16/10
H = Image Height (size) H = W x 10/16
B = Vertical distance between lens center and screen center Screen Diagonal = W x 18.868/16
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B = 0.392W
C (wide) = 1.550W
C (tele) = 1.700W
D = 0.079W
α (wide) = tanˉ¹ (B/C(wide))
α (tele) = tanˉ¹ (B/C(tele))
Distance Chart for popular 16:10 screens
Note: For screen sizes not indicated on the
projection tables, use the formulas on page 1.
Diagonal Width(W) Height (H)
inches inches inches inches
40 34 21 13 53 - 58 14.2 - 13.0
60 51 32 20 79 - 87 14.2 - 13.0
67 57 36 22 88 - 97 14.2 - 13.0
72 61 38 24 95 - 104 14.2 - 13.0
84 71 44 28 110 - 121 14.2 - 13.0
90 76 48 30 118 - 129 14.2 - 13.0
100 85 53 33 132 - 145 14.2 - 13.0
120 102 64 40 158 - 173 14.2 - 13.0
150 127 79 50 197 - 216 14.2 - 13.0
180 153 96 60 237 - 260 14.2 - 13.0
210 178 111 70 276 - 303 14.2 - 13.0
241 204 128 80 316 - 347 14.2 - 13.0
270 229 143 90 355 - 389 14.2 - 13.0
300 254 159 100 394 - 432 14.2 - 13.0
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