NEC Solutions (America), Inc.Visual SystemsVT46/460/465/560/660/660K Installation GuideDesktop and Ceiling Mounted v2.0ContentsProduct Description, Lens Specs, Notes and Formulas Page 1Diagrams and Distance ChartsCeiling Mounted Installation Page 2Desktop Setup Page 3Cabinet DimensionsTop, Front and Right Side Page 4Bottom, Back and Left Side Page 5Ceiling Mount Dimensions Page 6Control Codes Page 7Product DescriptionType: 3 panel LCD projector Brightness: VT46: 1200 ANSI LumensVT46/460/465/560: 0.7” p-Si TFT VT460: 1500 ANSI LumensVT660/660K: 0.7” p-Si TFT wMLA VT465: 1800 ANSI LumensResolution: VT46/460/465: 800x600 (SVGA) VT560: 1300 ANSI LumensVT560/660/660K: 1024 x 768 (XGA) VT660: 1700 ANSI LumensDimensions: 12.2”(W) x 3.9”(H) x 9.6”(D) VT660K: 2000 ANSI LumensWeight: 6.5 lbsLens SpecificationsThrow Ratio: 1.5 - 1.8:1(for 100” diagonal) Focal Length: 21.6mm – 25.9mmOffset Angle: 9.5°-11.4° (for 100” diagonal) F/#: 1.7 – 2.0Screen Sizes: 21”-300” Manual Zoom / 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. 4:3 sources can be displayed on a 16:9 screen without vertical “squeezing”, see “Aspect Ratio” in the user manual. Distances are in inches, for millimeters multiply by 25.4. Distances may vary ±5%.Formulas (for a 4:3 screen)units: inches (for millimeters multiply final number by 25.4)Calculate projection values by plugging the screen width (H) into the projection formulas.Projection Formulas: Definitions:B = 0.3023H H = Horizontal Screen Width (4:3)C (wide) = 1.5165H – 1.357 V = Vertical Screen Height (4:3)C (tele) = 1.8197H – 1.629 B = Vertical distance between lens center and screen centerD = 0.0727H C = Throw distanceα (wide) = tan-1 (B/C(wide)) α = Throw Angleα (tele) = tan-1 (B/C(tele))Screen Formulas (4:3):H = V x 4/3V = H x 3/4Screen Diagonal = H x 5/4www.necvisualsystems.com Page 1 of 7