NEC Display Solutions of America, Inc.
P452W/P452H/P502W/P502H Installation Guide
Desktop and Ceiling Mount
Rev 1.0
www.necdisplay.com
P452W/P452H/P502W/P502H
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
(max) = 0.366W
B (min) = 0
C
(wide) = 1.274W – 1.457
C
(tele)
= 2.188W – 1.404
D
(max) = -0.053W
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
57
48
30
18
-
0
60
-
104
-3
-
15
16.4
-
9.6
66
56
35
20
-
0
70
-
121
-3
-
18
16.3
-
9.6
68
58
36
21
-
0
72
-
125
-3
-
18
16.3
-
9.6
75
64
40
23
-
0
80
-
139
-3
-
20
16.3
-
9.6
79
67
42
25
-
0
84
-
146
-4
-
21
16.3
-
9.6
85
72
45
26
-
0
90
-
156
-4
-
23
16.3
-
9.6
92
78
49
29
-
0
98
-
170
-4
-
25
16.3
-
9.6
98
83
52
30
-
0
105
-
181
-4
-
26
16.2
-
9.6
102
86
54
32
-
0
109
-
188
-5
-
27
16.2
-
9.6
111
94
59
35
-
0
119
-
205
-5
-
30
16.2
-
9.6
113
96
60
35
-
0
121
-
209
-5
-
30
16.2
-
9.6
123
104
65
38
-
0
131
-
226
-6
-
33
16.2
-
9.6
125
106
66
39
-
0
133
-
230
-6
-
33
16.2
-
9.6
147
125
78
46
-
0
158
-
272
-7
-
39
16.2
-
9.5
149
126
79
46
-
0
160
-
275
-7
-
40
16.2
-
9.5
213
181
113
66
-
0
229
-
394
-10
-
57
16.1
-
9.5
255
216
135
79
-
0
274
-
471
-11
-
68
16.1
-
9.5
270
229
143
84
-
0
290
-
499
-12
-
72
16.1
-
9.5
300
254
159
93
-
0
323
-
555
-13
-
80
16.1
-
9.5
Screen Size (16:10)
inches
C
w ide - tele
inches
degrees
D
max - min
α
w ide - tele
B
max - min
inches
Shift Range
Screen Center
H
0.1H
Shift Range
Screen Center
C
Lens Offset From Mount Pipe
8.2
6.25
C
5.95
