Nec VT45K installation data
Visual Systems
VT45 Installation Data
Desktop and Ceiling Mount
Contents
Product Description, Lens Specs, Notes and Formulas Page 1
Projection Distances and Screen Sizes
Ceiling Mount Installation
Desktop Setup
Lens Shift Adjustable Range
Cabinet Dimensions
Top, Front and Right View
Bottom, Back and Left View
Ceiling Mount Dimensions
Top, Front Left and Bottom View
PC Control Codes
Product Description
Type: 3 panel, 0.7” p-Si TFT LCD projector Dimensions: 11.8”(W) x 3.5”(H) x 8.1”(D)
Native Resolution: 800 x 600 Weight: 5.6 lbs
Brightness: 1000 ANSI Lumens Manual Lens Shift/Manual Zoom/Manual Focus
Lens Specifications
Throw Ratio: 1.82 - 2.01:1 Focal Length: 26.6mm – 29.3mm
Screen Sizes: 25”-300” F/#: 2.0 – 2.2
Distortion: 0.7% TV Dist. MTF(@40lp/mm Gr): Ctr>60% Crnr>50%
Chrom. Aberration: Max 8 micron
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.
The ceiling must be strong enough to support the LCD projector and the installation must be in accordance with any local
building codes.
• All calculations are based on 4:3 aspect ratio.
• Distances are in inches, for millimeters multiply by 25.4.
• Distances may vary ±5%.
Formulas
Units: Inches (for millimeters multiply final number by 25.4)
D = Screen Diagonal (4:3)
H = D x 0.8 H = Screen Width (4:3)
V = D x 0.6 V = Screen Height (4:3)
C = Throw distance
C (Wide) = 1.8487H – 1.237
C (Tele) = 2.0349H – 1.298
Rev 1.3
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Visual Systems
VT45 Installation Data
Desktop and Ceiling Mount Rev 1.3
Projection Distance and Screen Size for Ceiling Mount
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 Mount Installation
4.42"
Lens Offset from
Mounting Pipe
Screen Ctr
Vertical Offset
Throw Distance
5.78"
2.96"
T
V
4
5
Distance Chart
Screen Size (4:3) Throw Distance
Diagonal Width (W) Height (V) wide - tele
25" 20" 15" 36 - 39"
40" 32" 24" 58" - 64"
60" 48" 36" 87" - 96"
67" 53.6" 40.2" 98" - 108"
72" 57.6" 43.2" 105" - 116"
84" 67.2" 50.4" 123" - 135"
90" 72" 54" 132" - 145"
100" 80" 60" 147" - 161"
120" 96" 72" 176" - 194"
150" 120" 90" 220" - 243"
180" 144" 108" 265" - 292"
210" 168" 126" 309" - 341"
240" 192" 144" 354" - 389"
270" 216" 162" 398" - 438"
300" 240" 180" 443" - 487"
Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.
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Visual Systems
VT45 Installation Data
Desktop and Ceiling Mount Rev 1.3
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen.
Distances are in inches. For millimeters multiply by 25.4.
Desktop Setup
Throw Distance
Screen Ctr
Vertical Offset
Distance Chart
Screen Size (4:3) Throw Distance
Diagonal Width (W) Height (V) wide - tele
25" 20" 15" 36 - 39"
40" 32" 24" 58" - 64"
60" 48" 36" 87" - 96"
67" 53.6" 40.2" 98" - 108"
72" 57.6" 43.2" 105" - 116"
84" 67.2" 50.4" 123" - 135"
90" 72" 54" 132" - 145"
100" 80" 60" 147" - 161"
120" 96" 72" 176" - 194"
150" 120" 90" 220" - 243"
180" 144" 108" 265" - 292"
210" 168" 126" 309" - 341"
240" 192" 144" 354" - 389"
270" 216" 162" 398" - 438"
300" 240" 180" 443" - 487"
Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.
1.76"
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