NEC NP-VE281X, NP-VE281 Installation and Setup Guide
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
Contents
Product Description, Lens Specs, Notes Pg 1
Formulas
Diagrams & Distance Charts
Cabinet Dimensions
Ceiling Mount Dimensions
Input Panels and Control Codes
Product Description
Type: 1-chip DLP projector,
VE281/VE281X: 0.55” DLP
VE282B/VE282XB: 0.55” DLP
Brightness: VE281/VE281X 2800 lumens
VE282B/VE282XB: 2800 lumens
Resolution: VE281/VE282 800 x 600 Fan Noise: VE281/VE281X: 35dB / 33dB @ 1meter
VE281X/VE282XB: 1024 x 768 VE282B/VE282XB: 35dB / 33dB @ 1meter
Dimensions: 12.2” (W) x 3.7” (H) x 9.7” (D) Weight: 5.1 lbs
Power Consumption: VE281/VE281X: 261W (max) BTU’s: VE281/VE281X: 890.57 BTU/hour
VE282B/VE282XB: 261W (max) BTU’s VE282B/VE282XB: 890.57 BTU/hour
Lens Specifications
Throw Ratio: 1.9 – 2.1:1 (for 100” diagonal) Focal Length: 21.8mm – 24.0mm
Offset Angle: 12.8° - 14.0° (for 100” diagonal) F/#: 2.41 - 2.55
Screen Sizes: 30” - 300” diagonal (4:3) Manual Focus/Manual Zoom
Notes
For screen sizes not indicated on the projection tables, use the formulas on the following page.
If the figures on the tables do not match the results of formulas, use the figures in the table.
All calculations are based on a 4:3 aspect ratio.
Distances are in inches, for millimeters multiply by 25.4.
Distances may vary 5%.
Pg 2-3
Pg 4
Pg 5-6
Pg 7
Pg 8
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 1 of 8
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
Formulas
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 below for popular screen sizes:
Definitions: 4:3 Screen Formulas:
W = Image Width W = H x 4/3
H = Image Height (size) H = W x 3/4
B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B = 0.487W
C (wide) = 1.94W
C (tele) = 2.165W
D = 0.112W
α (wide) = tan¯¹ (B/C(wide))
α (tele) = tan¯¹ (B/C(tele))
Distance Chart for popular 4:3 screens
Diagonal Width(W) Height (H)
inc hes inc hes inc hes inc hes
Screen Size (4:3)
30 24 18 12 46 - 52 14.1 - 12.7
60 48 36 23 93 - 104 14.1 - 12.7
.
Note:
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67 53.6 40.2 26 104 - 116 14.1 - 12.7
72 57.6 43.2 28 111 - 125 14.1 - 12.7
84 67.2 50.4 33 130 - 146 14.1 - 12.7
90 72 54 35 139 - 156 14.1 - 12.7
100 80 60 39 155 - 173 14.1 - 12.7
120 96 72 47 186 - 208 14.1 - 12.7
150 120 90 58 232 - 260 14.1 - 12.7
180 144 108 70 279 - 312 14.1 - 12.7
210 168 126 82 325 - 364 14.1 - 12.7
240 192 144 94 372 - 416 14.1 - 12.7
270 216 162 105 418 - 468 14.1 - 12.7
300 240 180 117 465 - 520 14.1 - 12.7
For screen sizes not indicated on the projection tables, use the formu las on above
B
C
w ide - tele
inches
D
inches
α
w ide - tele
degrees
3
5
6
6
8
8
9
11
13
16
19
22
24
27
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