NEC LCDMT850 Installation Data

Also see for LCDMT850: User manual Installation data Installation data

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NEC LCDMT850 Installation Data Manual pdf 1 page image

Visual Systems DivisionTechnical BulletinMT850 Installation Datawith Optional MT13ZL Zoom Lens (1.3 – 1.6:1) Rev. 1.6Page 1ContentsProduct Description, Lens Specs, Notes and Formulas Page 1Projection Distances and Screen SizesCeiling Mount Installation Page 2Desktop Setup Page 3Cabinet DimensionsTop, Front and Right Side Page 4Bottom, Back and Left Side Page 5Ceiling Mount Dimensions Page 6Timing Chart Page 7PC Control Codes Page 8Product DescriptionType: 3 panel, 1.3” p-Si TFT LCD projector Dimensions: 11.1”(W) x 4.8”(H) x 16.8”(D) (w/lens installed)Native Resolution: 800 x 600 Weight: 17.4 lbs (w/lens installed)Brightness: 1700 ANSI LumensLens SpecificationsMT13ZL Zoom LensThrow Ratio: 1.24 – 1.30:1(Wide) / 1.54 – 1.60:1(Tele) Screen Sizes: 40 – 300” DiagonalOffset Angle: 13.9° – 14.6°(Wide) / 11.4° – 11.8°(Tele) Distortion: 0.7% TV DistortionFocal Length: 35 – 43mm MTF (@30 lp/mm Green): Ctr >65% Corner >40%F/#: 2.3 – 2.8 AR Coated: Multi-Layer CoatedFocus Adjustment: Manual Focus/Manual Zoom Chromatic Aberration: Max 10 μmNotesß For Screen Sizes of 40 to 200 inches not indicated on the projection tables, use the formulas below.ß If the figures on the tables do not match the results of formulas, use the figures in the table.ß The ceiling must be strong enough to support the LCD projector and the installation must be in accordance with any localbuilding codes.• All calculations are based on 4:3 aspect ratio.• Distances are in inches, for millimeters multiply by 25.4.• Distances may vary ±5%.FormulasUnits: 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)M = 0.96212H M = Projection magnificationB = 0.3346M B = Vertical distance between lens center and screen centerC (Wide) = 1.3623M – 2.325 C = Throw distanceC (Tele) = 1.6756M – 2.325D = 0.0585M D = Vertical distance between lens center and top of screen (bottom of screenfor desktop application)α (wide) = tan-1 (B/C(wide)) α = Throw angleα (tele) = tan-1 (B/C(tele))