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PH2601QL & PH3501QL Installation Guide
Desktop and Ceiling Mount
Formulas: 16:9 Aspect Ratio (UHD = 3840x2160)
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:
C(Wide) = 0.999W – 3.988
L2K-10F1:
C(Wide) = 1.343W – 4.327 ------ C(Tele) = 1.854W – 3.937
L4K-11ZM:
C(Wide) = 1.632W – 4.382 ------ C(Tele) = 2.257W – 3.488
L4K-15ZM:
L4K-20ZM:
C(Wide) = 2.089W + 10.012 ------ C(Tele) = 3.550W + 10.488
L2K-30ZM:
C(Wide) = 2.917W + 9.189 ------ C(Tele) = 4.219W + 12.358
C(Wide) = 4.201W - 11.906 ------ C(Tele) = 5.929W – 15.831
L2K-43ZM1:
C(Wide) = 5.363W - 13.520 ------ C(Tele) = 8.393W – 17.862
L2K-55ZM1:
Distance Chart for popular 16:9 Screens (UHD = 3840x2160)
Screen Size (16:9)
Diagonal Width(W) Height (H)
inches
inches
inches
110
96
54
91.7 -
131
114
64
109.9 -
161
140
79
136.0 -
192
167
94
163.0 -
226
197
111
192.6 -
259
225
127
221.3 -
292
254
143
250.0 -
324
282
159
277.8 -
400
348
196
343.9 -
500
435
245
430.9 -
www.necdisplay.com
L2K-10F1
L4K-11ZM
0.9:1
1.10-1.70-1
inches
inches
N/A
124.3 - 173.6
N/A
148.8 - 207.5
N/A
183.9 - 255.9
N/A
220.2 - 306.0
N/A
259.9 - 360.9
N/A
298.5 - 414.1
N/A
337.1 - 467.4
N/A
374.5 - 519.0
N/A
463.4 - 641.7
N/A
580.3 - 803.1
Definitions:
W = Image Width
H = Image Height (size)
C = Throw distance
Zoom Lenses
L4K-15ZM
L4K-20ZM
1.50-2.10:1
2.00-3.40:1
inches
inches
151.9 - 212.7
210.1 - 350.5
181.7 - 253.9
248.3 - 415.4
224.4 - 312.9
302.8 - 508.1
268.4 - 373.8
359.2 - 603.9
316.7 - 440.6
421.0 - 709.0
363.6 - 505.4
481.1 - 811.0
410.5 - 570.3
541.1 - 913.0
456.0 - 633.2
599.3 - 1011.9
563.9 - 782.5
737.5 - 1246.7
706.0 - 979.0
919.4 - 1555.8
PH2601QL/PH3501QL
NEC Display Solutions of America, Inc.
16:9 Screen Formulas
W = H x 16/9
H = W x 9/16
Screen Diagonal = W x 18.378/16
L2K-30ZM
L2K-43ZM1
2.70-3.90:1
3.70-5.30:1
inches
inches
270.2 - 391.68
390.4 - 551.97
323.5 - 468.82
467.2 - 660.37
399.7 - 579.01
576.9 - 815.22
478.4 - 692.87
690.3 - 975.24
564.8 - 817.76
814.7 - 1150.7
648.6 - 938.97
935.4 - 1321.1
732.4 - 1060.2 1056.1 - 1491.4
813.6 - 1177.7 1173.1 - 1656.6
1006.6 - 1456.9 1451.1 - 2048.9
1260.6 - 1824.2 1816.8 - 2565.1
Rev 1.0
L2K-55ZM1
4.80-7.40:1
inches
500.1 - 785.91
598.1 - 939.35
738.2 - 1158.6
882.9 - 1385.1
1041.7 - 1633.5
1195.8 - 1874.7
1349.8 - 2115.8
1499.3 - 2349.6
1854.1 - 2904.9
2321.0 - 3635.6
Page 3 of 11
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