NEC VT37 Installation Manual

Also see for VT37: Supplementary guide Control commands Control commands Specifications User manual

Contents

NEC VT37 Installation Manual Manual pdf 1 page image

www.necvisualsystems.com VT37/47 Page 1 of 6NEC Solutions (America), Inc.Visual Systems DivisionVT37/47 Installation GuideCeiling Mounted and Desktop v1.5ContentsProduct Description, Lens Specs, Notes and Formulas Pg. 1Diagrams and Distance Charts Pg. 2Cabinet Dimensions Pg. 3 - 4Ceiling Mount Dimensions Pg. 5Input Panel and Control Codes Pg. 6Product DescriptionType: 3 panel LCD projector, Brightness: 1500 ANSI lumens0.7” p-Si TFT Dimensions: 11.57”(W) x 4.43”(H) x 11.10”(D)Resolution: 800x600 Weight: 6.4 lbsLens SpecificationsThrow Ratio: 1.2:1(for 100” diagonal) Focal Length: 17.5mmOffset Angle: 14.1° (for 100” diagonal) F/#: 2.0Screen Sizes: 25”-300” diagonal (4:3) Fixed Throw / Manual FocusNotes For screen sizes not indicated on the projection charts, use the formulas below. If a value in a chart does not match the results of the formulas, use the values in the chart. The ceiling must be strong enough to support the projector and the installation must be in accordance with any localbuilding codes. All formulas are based on a 4:3 aspect ratio and screen. Distances are in inches, for millimeters multiply by 25.4. Distances may vary ±5%.FormulasThe Projection Formulas use the image width for calculation. Image width is the same for all aspect ratios, only vertical image sizevaries. For proper projector placement, determine the image width for a desired screen size. Use the Screen Formulas below tocalculate all screen dimensions. Plug in the image width for “W” in the 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 (screenbottom for desktop)α = Projection angleProjection Formulas:B = 0.2986WC = 1.2008W – 1.142D = 0.0764Wα = tan-1 (B/C)