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
Diagonal Width(W) Height (H)
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
Screen Size (16:9)
A
B
C
D
E
