NEC Display Solutions of America, Inc.
P502WL/P502HL Installation Guide
Desktop and Ceiling Mount Rev 1.0
www.necdisplay.com P502WL/P502HL Page 3 of 9
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted
Desktop
Distance Chart for popular 16:9 screens
16:9 Screen Formulas:
W = H x 16/9
H = W x 9/16
Screen Diagonal = W x 18.358/16
Projection Formulas:
B = 0.369W
C (wide) = 1.247W – 1.426
C (tele) = 2.142W – 1.374
D (max) = -0.068W
D (min) = 0.281W
α (wide) = tanˉ¹ (B/C(wide))
α (tele) = tanˉ¹ (B/C(tele))
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
61 53 30 20 63 - 110 4 - 15 17.5 - 10.2
71 62 35 23 74 - 129 4 - 17 17.4 - 10.1
73 64 36 24 76 - 133 4 - 18 17.4 - 10.1
82 71 40 26 85 - 148 5 - 20 17.3 - 10.1
86 75 42 28 89 - 156 5 - 21 17.3 - 10.1
92 80 45 30 96 - 167 5 - 22 17.2 - 10.1
100 87 49 32 104 - 182 6 - 24 17.2 - 10.1
106 92 52 34 111 - 194 6 - 26 17.2 - 10.0
110 96 54 36 115 - 201 7 - 27 17.2 - 10.0
120 105 59 39 126 - 220 7 - 29 17.1 - 10.0
122 107 60 40 128 - 224 7 - 30 17.1 - 10.0
133 116 65 43 139 - 243 8 - 32 17.1 - 10.0
135 117 66 44 142 - 247 8 - 33 17.1 - 10.0
159 139 78 51 168 - 292 9 - 39 17.0 - 10.0
161 140 79 52 170 - 296 10 - 39 17.0 - 10.0
230 201 113 75 244 - 425 14 - 56 17.0 - 9.9
275 240 135 89 293 - 508 16 - 67 16.9 - 9.9
Shift Range
Screen Center
H
0.1H
Shift Range
Screen Center
C
C
6.92
Lens O ff set From Mount Pipe
7.48
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