Nec VT590 Bruksanvisning
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NEC Corporation of America
Visual Systems Division
VT490/590/595 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necvisualsystems.com VT490/590/595 Page 1 of 6
Contents
Product Description, Lens Specs, Notes and Formulas Pg 1
Diagrams & Distance Charts Pg 2
Cabinet Dimensions Pg 3-4
Ceiling Mount Dimensions Pg 5
Input Panel and Control Codes Pg 6
Product Description
Type: 3 panel LCD projector, Brightness: VT490: 2000 ANSI Lumens
0.6” p-Si TFT w/MLA VT590/VT595: 2000 ANSI Lumens
Resolution: VT490: 800 x 600
VT590/VT595: 1024x768
Dimensions: 12.1”(W) x 10.2”(H) x 4.4”(D)
Weight: 6.17 lbs
Lens Specifications
Throw Ratio: 1.5 – 1.8:1 (for 100” diagonal) Focal Length: 18.9mm – 22.7mm
Offset Angle: 8.3° - 10.0° (for 100” diagonal) F/#: 1.7 - 2.07
Screen Sizes: 25” - 300” diagonal (4:3) Manual Focus/Manual Zoom
Notes
For screen sizes not indicated on the projection tables, use the formulas below.
If the figures on the tables do not match the results of formulas, use the figures in the table.
• All calculations are based on 4:3 aspect ratio.
• Distances are in inches, for millimeters multiply by 25.4.
• ± Distances may vary 5%.
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 for popular screen sizes on page 2:
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 = 0.266W
C (wide) = 1.525W – 1.176
C (tele) = 1.828W – 1.173
D = 0.108W
α (wide) = tan¯¹ (B/C(wide))
α (tele) = tan¯¹ (B/C(tele))
NEC Corporation of America
Visual Systems Division
VT490/590/595 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necvisualsystems.com VT490/590/595 Page 2 of 6
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Top
5.26"
5.68"
Lens Offset From
Mount Pipe
3.27"
D
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Bottom 2.57"
D
Desktop
Distance Chart for popular 4:3 screens Screen Size (4:3)
Diag W H
inches inches inches inches inches
30 24 18 6 -3
60 48 36 13 -5
72 57.6 43.2 15 -6
84 67.2 50.4 18 -7
90 72 54 19 -8
100 80 60 21 -9
120 96 72 26 -10
150 120 90 32 -13
180 144 108 38 -16
200 160 120 43 -17
250 200 150 53 -22
300 240 180 64 -26
BC
wide - tele
Dα
wide - tele
inches degrees
35 - 43 10.2 - 8.5
72 - 87 10.1 - 8.4
87 - 104 10.0 - 8.4
101 - 122 10.0 - 8.4
109 - 130 10.0 - 8.4
121 - 145 10.0 - 8.3
145 - 174 10.0 - 8.3
182 - 218 10.0 - 8.3
218 - 262 10.0 - 8.3
365 - 438 9.9 - 8.3
243 - 291 10.0 - 8.3
304 - 364 9.9 - 8.3
Note: For screen sizes not indicated on the projection
tables, use the formulas on page 1.
NEC Corporation of America
Visual Systems Division
VT490/590/595 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
www.necvisualsystems.com VT490/590/595 Page 3 of 6
Cabinet Dimensions
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
MENU
SELECT
ENTER
EXIT
ON/ST AND BY SOU RCE AUTO ADJ.
POWER
STATUS
LAMP
VT
VT
VT
VTVT
480
480
480
480480
PUSH
10.17
12.07
0.10
2.57
2.22
3.27
4.45
Ventilation
Ventilation
4.76
2.78
2.29
7.41
0.07
2.26
Zoom Lever
Focus lever
Ventilation
Produktspecifikationer
| Varumärke: | Nec |
| Kategori: | Beamer |
| Modell: | VT590 |
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