Installation Guide

Sharp NEC Display Solutions of America, Inc.
M380HL/M430WL Installation Guide
Ceiling Mounted and Desktop Rev 1.2
www.sharpnecdisplays.us/ M380HL/M430WL Page 2 of 8
Formulas: 16:9 Aspect Ratio
The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width
for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for “W” in
the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2:
Definitions:
W = Image Width
H = Image Height (size)
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
16:9 1080p Screen Formulas:
W = Image Width = H x 16/9
H = Image Height = W x 9/16
Screen Diagonal = W x 18.358/16
Projection Formulas:
C (wide) = 1.4W
C (tele) = 2.24W
Vertical Lens Shift Max (Down) = -0.54H
Vertical Lens Shift Max (Up) = 0.69H
α (wide) = tanˉ¹ (B/C(wide))
α (tele) = tanˉ¹ (B/C(tele))
Note:
For screen sizes not indicated on the projection
Diagonal Width(W) Height (H)
Min Max Min Max
inches inches inches
30 26 15 36.6 - 58.6 7.9 - 10.1 0.6 - 2.8 12.2 - 7.7 15.5 - 9.8
40 35 20 48.8 - 78.1 10.6 - 13.5 0.8 - 3.7 12.2 - 7.7 15.5 - 9.8
50 44 25 61.0 - 97.6 13.2 - 16.9 1.0 - 4.7 12.2 - 7.7 15.5 - 9.8
60 52 29 73.2 - 117.1 15.9 - 20.3 1.2 - 5.6 12.2 - 7.7 15.5 - 9.8
70 61 34 85.4 - 136.7 18.5 - 23.7 1.4 - 6.5 12.2 - 7.7 15.5 - 9.8
80 70 39 97.6 - 156.2 21.2 - 27.1 1.6 - 7.5 12.2 - 7.7 15.5 - 9.8
90 78 44 109.8 - 175.7 23.8 - 30.4 1.8 - 8.4 12.2 - 7.7 15.5 - 9.8
100 87 49 122.0 - 195.2 26.5 - 33.8 2.0 - 9.3 12.2 - 7.7 15.5 - 9.8
120 105 59 146.4 - 234.3 31.8 - 40.6 2.4 - 11.2 12.2 - 7.7 15.5 - 9.8
150 131 74 183.0 - 292.8 39.7 - 50.7 2.9 - 14.0 12.2 - 7.7 15.5 - 9.8
180 157 88 219.6 - 351.4 47.7 - 60.9 3.5 - 16.8 12.2 - 7.7 15.5 - 9.8
200 174 98 244.0 - 390.5 52.9 - 67.7 3.9 - 18.6 12.2 - 7.7 15.5 - 9.8
240 209 118 292.8 - 468.5 63.5 - 81.2 4.7 - 22.4 12.2 - 7.7 15.5 - 9.8
270 235 132 329.4 - 527.1 71.5 - 91.3 5.3 - 25.1 12.2 - 7.7 15.5 - 9.8
300 261 147 366.1 - 585.7 79.4 - 101.5 5.9 - 27.9 12.2 - 7.7 15.5 - 9.8
α
w ide - tele
(
Lens Shift Max)
degrees
degrees
inches
Screen Size (16:9)
inches
C
w ide - tele
Vertical Lens Shift
Range (A)
Vertical Lens Shift
Range (B)
inches
α
w ide - tele
(
Lens Shift Min)