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 3 of 8
Formulas: 16:10 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)
16:10 WXGA Screen Formulas:
W = Image Width = H x 16/10
H = Image Height = W x 10/16
Screen Diagonal = W x 18.868/16
Projection Formulas:
C (wide) = 1.47W
C (tele) = 2.35W
Vertical Lens Shift Max (Down) = -0.5H
Vertical Lens Shift Max (Up) = 0.65H
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 25 16 37.4 - 59.8 7.9 - 10.3 0.0 - 2.4 12.0 - 7.6 15.4 - 9.8
40 34 21 49.9 - 79.7 10.6 - 13.8 0.0 - 3.2 12.0 - 7.6 15.4 - 9.8
50 42 26 62.3 - 99.6 13.2 - 17.2 0.0 - 4.0 12.0 - 7.6 15.4 - 9.8
60 51 32 74.8 - 119.6 15.9 - 20.7 0.0 - 4.8 12.0 - 7.6 15.4 - 9.8
70 59 37 87.3 - 139.5 18.5 - 24.1 0.0 - 5.6 12.0 - 7.6 15.4 - 9.8
80 68 42 99.7 - 159.4 21.2 - 27.6 0.0 - 6.4 12.0 - 7.6 15.4 - 9.8
90 76 48 112.2 - 179.4 23.8 - 31.0 0.0 - 7.2 12.0 - 7.6 15.4 - 9.8
100 85 53 124.7 - 199.3 26.5 - 34.4 0.0 - 7.9 12.0 - 7.6 15.4 - 9.8
120 102 64 149.6 - 239.1 31.8 - 41.3 0.0 - 9.5 12.0 - 7.6 15.4 - 9.8
150 127 79 187.0 - 298.9 39.7 - 51.7 0.0 - 11.9 12.0 - 7.6 15.4 - 9.8
180 153 95 224.4 - 358.7 47.7 - 62.0 0.0 - 14.3 12.0 - 7.6 15.4 - 9.8
200 170 106 249.3 - 398.6 53.0 - 68.9 0.0 - 15.9 12.0 - 7.6 15.4 - 9.8
240 204 127 299.2 - 478.3 63.6 - 82.7 0.0 - 19.1 12.0 - 7.6 15.4 - 9.8
270 229 143 336.6 - 538.1 71.5 - 93.0 0.0 - 21.5 12.0 - 7.6 15.4 - 9.8
300 254 159 374.0 - 597.8 79.5 - 103.3 0.0 - 23.8 12.0 - 7.6 15.4 - 9.8
α
w ide - tele
(
Lens Shift Min)
α
w ide - tele
(
Lens Shift Max)
degrees
degrees
inches
Screen Size (16:10)
inches
C
w ide - tele
Vertical Lens Shift
Range (A)
Vertical Lens Shift
Range (B)
inches