NEC P502WL - Ceiling Mounted

NEC Display Solutions of America, Inc.
P502WL/P502HL Installation Guide
Desktop and Ceiling Mount Rev 1.0
www.necdisplay.com P502WL/P502HL Page 2 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 16:10 screens
16:10 Screen Formulas:
W = H x 16/10
H = W x 10/16
Screen Diagonal = W x 18.868/16
Projection Formulas:
B = 0.369W
C (wide) = 1.309W – 1.457
C (tele) = 2.248W – 1.404
D (max) = -0.056W
D (min) = 0.313W
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
57 48 30 18 61 - 107 -3 - 15 16.1 - 9.4
66 56 35 21 72 - 124 -3 - 18 16.0 - 9.4
68 58 36 21 74 - 128 -3 - 18 16.0 - 9.4
75 64 40 24 82 - 142 -4 - 20 16.0 - 9.4
79 67 42 25 87 - 150 -4 - 21 16.0 - 9.4
85 72 45 27 93 - 160 -4 - 23 16.0 - 9.4
92 78 49 29 101 - 175 -4 - 25 16.0 - 9.4
98 83 52 31 107 - 186 -5 - 26 15.9 - 9.4
102 86 54 32 112 - 193 -5 - 27 15.9 - 9.4
111 94 59 35 122 - 211 -5 - 30 15.9 - 9.4
113 96 60 35 124 - 214 -5 - 30 15.9 - 9.4
123 104 65 38 135 - 232 -6 - 33 15.9 - 9.4
125 106 66 39 137 - 236 -6 - 33 15.9 - 9.4
147 125 78 46 162 - 279 -7 - 39 15.9 - 9.4
149 126 79 47 164 - 283 -7 - 40 15.9 - 9.4
213 181 113 67 235 - 405 -10 - 57 15.8 - 9.4
255 216 135 80 281 - 484 -12 - 68 15.8 - 9.3
270 229 143 84 298 - 513 -13 - 72 16 - 9
300 254 159 94 332 - 570 -14 - 80 16 - 9
degrees
D
max - min
α
w ide - tele
Screen Size (16:10)
inches
B
C
w ide - tele
inches
Shift Range
Screen Center
H
0.1H
Shift Range
Screen Center
C
C
6.92
Lens O ffset From Mount Pipe
7.48