NEC LT150 Technical Bulletin

Visual Systems Division
Technical Bulletin
LT150 Throw Distance Data
Desktop and Ceiling Mount
Contents
Product Description, Lens Specs, Notes & Formulas
Projection Distances and Screen Sizes
Desktop Setup
Ceiling Mount Installation
Cabinet Dimensions
Top, Front and Right Side
Bottom, Back and Left Side
Timing Chart
PC Control Codes
Product Description
Type: Single chip DLP
Native Resolution: 1024 x 768
Brightness: 800 ANSI Lumens
Lens Specifications
Manual Focus (No Zoom)
Screen Sizes:
Throw Ratio:
Offset Angle:
Notes
§
For Screen Sizes of 36 to 200 inches not indicated on the projection tables, use the formulas below.
§
If the figures on the tables do not match the figures in the 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 screen with. (regardless of 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
V = D x 0.6
B = 0.5037H
C = 1.6288H – 0.5157
D = 0.1287H
-1
= tan (B / C)
projector
F3.0 f = 20.3mm
36" - 200" diagonal
1.64 - 1.63:1 (dependent on screen size and focus setting)
° °
17.0 – 17.2
H = Screen Width (4:3)
V = Screen Height (4:3)
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and top of screen (bottom of screen for
= Throw angle
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Dimensions: 9.4"(W) x 2.1"(H) x 7.7"(D)
Weight: 3.3 lbs
Rev. 1.6
(not incl. Protrusions)
desktop application)
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