NEC VT695, VT700 User Manual
NEC Display Solutions of America, Inc.
VT695/700 Installation Guide
Ceiling Mounted and Desktop Rev 1.0
Contents
Product Description, Lens Specs, Notes and Formulas Pg 1
Diagrams & Distance Charts
Cabinet Dimensions
Ceiling Mount Dimensions
Input Panel and Control Codes
Product Description
Type: 3 panel LCD projector, Brightness: VT695: 2500 ANSI Lumens
0.63” p-Si TFT w/MLA VT700: 3000 ANSI Lumens
Resolution: 1024 x 768
Dimensions: 12.1” (W) x 10.2” (H) x 4.4” (D)
Weight: 6.4 lbs
Lens Specifications
Throw Ratio: 1.5 – 1.8:1 (for 100” diagonal) Focal Length: 18.9mm – 22.7mm
Offset Angle: 8.7° - 10.4° (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 a 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) = 1.475W – 1.176
C (tele) = 1.773W – 1.173
D = 0.108W
α (wide) = tan¯¹ (B/C(wide))
α (tele) = tan¯¹ (B/C(tele))
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NEC Display Solutions of America, Inc.
VT695/700 Installation Guide
Ceiling Mounted and Desktop Rev 1.0
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
Screen Ctr
D
Lens Ctr
B
Desktop
Screen Ctr
Lens Ctr
B
D
Distance Chart for popular 4:3 screens
Note: For screen sizes not indicated on the projection
tables, use the formulas on page 1.
Screen Top
Screen Bottom
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
100806021 -9
120967226 -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
C
Throw Distance
C
Throw Distance
B
5.26"
5.68"
Lens Offset From
Mount Pipe
3.27"
2.57"
C
wide - tele
D
α
wide - tele
inches degrees
34 - 41 10.6 - 8.9
70 - 84 10.5 - 8.7
84 - 101 10.4 - 8.7
98 - 118 10.4 - 8.7
105 - 126 10.4 - 8.7
117 - 141 10.4 - 8.7
141 - 169 10.4 - 8.7
176 - 211 10.4 - 8.7
211 - 254 10.4 - 8.7
235 - 282 10.4 - 8.7
294 - 353 10.3 - 8.6
353 - 424 10.3 - 8.6
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