NEC LT180 Installation Manual

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Contents

NEC LT180 Installation Manual Manual pdf 1 page image

www.necvisualsystems.com LT180 Page 1 of 7zz NEC Solutions (America), Inc.Visual Systems DivisionLT180 Installation GuideFloor and Ceiling Configuration v1.0ContentsProduct Description, Lens Specs, Screen/Aspect Ratio,Notes and Formulas Pg 1Diagrams & Distance Charts; Ceiling Mounted Pg 2Floor Pg 3Cabinet Dimensions; Top, Front and Right Pg 4Bottom, Back and Left Pg 5Ceiling Mount Dimensions Pg 6Input Panel and Control Codes Pg 7Product DescriptionType: 1 chip DMDTM projector Color Wheel: 4 Segments (2x)Resolution: 1024 x 768 Dimensions: 7.37”(W) x 5.24”(H) x 13.60”(D)Brightness: 2000 ANSI Lumens Weight: 6.4 lbsContrast Ratio: 1000:1Lens SpecificationsThrow Ratio: 1.37 - 1.63:1 (for 100” Diag) Manual Focus/Manual ZoomOffset Angle: 10.5° - 12.4° (for 100” Diag) Focal Length: 19.7mm – 23.0mm lScreen Sizes: 30”-200” diagonal (4:3) F/#: 2.0 – 2.48Notes• For screen sizes not indicated in the projection charts, use the formulas below.• The ceiling must be strong enough to support the projector and the installation must be in accordance with any localbuilding codes.• Distances are in inches, for millimeters multiply by 25.4.• Distances may vary ±5%.FormulasThe Projection Formulas use the image width for calculation. For proper projector placement, determine the image width for adesired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the image width for “W” in theProjection Formulas.Refer to the diagrams and charts for popular screen sizes on page 2 & 3.Definitions: 4:3 Screen Formulas:W = Image Width W = H x 4/3H = Image Height (Size) H = W x 3/4B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4C = Throw distanceProjection Formulas:B = 0.2980WC(wide) = 1.3908W – 1.967C(tele) = 1.6511W – 1.945α(wide) = tan-1 (B/C(wide))α(tele) = tan-1 (B/C(tele))