NEC VT490 Installation Manual

Also see for VT595 Series: Specifications Control commands Command guide Command guide Control commands

Contents

NEC VT490 Installation Manual Manual pdf 1 page image

NEC Display Solutions of America, Inc.VT490/590/595 Installation GuideCeiling Mounted and Desktop Rev 1.2www.necdisplay.com VT490/590/595 Page 1 of 6ContentsProduct Description, Lens Specs, Notes and Formulas Pg 1Diagrams & Distance Charts Pg 2Cabinet Dimensions Pg 3-4Ceiling Mount Dimensions Pg 5Input Panel and Control Codes Pg 6Product DescriptionType: 3 panel LCD projector, Brightness: VT490: 2000 ANSI Lumens0.6” p-Si TFT w/MLA VT590/VT595: 2000 ANSI LumensResolution: VT490: 800 x 600VT590/VT595: 1024x768 Fan Noise: 34 dB / 29dB @ 1 meterDimensions: 12.1”(W) x 10.2”(H) x 4.4”(D) Weight: 6.17 lbsPower Consumption: 255W (max) BTU’s: 870 BTU/hourLens SpecificationsThrow Ratio: 1.5 – 1.8:1 (for 100” diagonal) Focal Length: 18.9mm – 22.7mmOffset Angle: 8.3° - 10.0° (for 100” diagonal) F/#: 1.7 - 2.07Screen Sizes: 25” - 300” diagonal (4:3) Manual Focus/Manual ZoomNotes 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 4:3 aspect ratio.• 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 projection placement, determine the image widthfor the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for “W” inthe 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 4/3H = Image Height (size) H = W x 3/4B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4C = Throw distanceD = Vertical distance between lens center and screen top(screen bottom for desktop application)Projection Formulas:B = 0.266WC (wide) = 1.525W – 1.176C (tele) = 1.828W – 1.173D = 0.108Wα (wide) = tan¯¹ (B/C(wide))α (tele) = tan¯¹ (B/C(tele))