Runco VX-2i manual Flat vs. Curved Screens

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Installation

Screen Type and Size ➤ Front Screen Installations: In front screen installations the projector and audience are positioned in front of the screen, which can be flat or curved; see Figure 3-1.

Flat screens are recommended with this projector. They offer a gain of about 1 with a viewing angle just less than 180°. This type of screen reflects incident light equally in all directions so the audience can see the display from various angles.

Curved screens have a gain greater than 1 with a viewing angle much less than 180 degrees. This type of screen does not reflect incident light equally in all directions; instead, it is concentrated in a viewing cone. The audience sitting within the viewing cone area sees a brighter image than those sitting just outside this area. Runco generally does not recommend use of curved screens due to excessive brightness and uncorrectable geometrical distortion.

Figure 3-1. Flat vs. Curved Screens

Rear screen installations: There are two basic types of rear screens: diffused and optical.

A diffusion screen has a surface that spreads the light striking it. Purely diffused screens have a gain of less than 1. The main advantage of the diffused screen is its wide viewing angle, similar to that of a flat screen for front screen projection. This type of screen is suitable when a wide viewing angle is required but there is low ambient room lighting.

Optical screens take light from the projector and redirect it to increase the light intensity at the front of the screen. This reduces it in other areas. A viewing cone similar to that of a curved, front-screen installation is created. This type of screen is better suited for brightly lit rooms where the audience is situated within the viewing cone.

14	Runco VX-2i Owner’s Operating Manual

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Contents VX-2i Page TWO Year Limited Warranty For Projectors, Video Processors and ControllersEffective Warranty Date Runco INTERNATIONAL, INC Safety Precautions Table of Contents Maintenance and Troubleshooting SpecificationsOperation Serial CommunicationsList of Figures List of Figures Introduction About This ManualUsing This Manual If you need Turn toDescription, Features and Benefits Key Features and BenefitsOptional Accessories Controls and Functions VX-2i at a GlanceComponent Video RCA connectors HD1 / HD2 Analog BNC connectorsVolt 800 mA Trigger Outputs Video 1 / S-VIDEOVX-2i Remote Control Power Input 100 to 240 VAC Connect the VX-2i to power hereOn / OFF Cursor KeysVideo Comp ComponentAspect Ratio Selection Buttons ANA Anamorphic 3 For 169 DVDs 4X3 Standard 43Letbox Letterbox Wide VirtualWideInstallation Remote ControlQuick Setup Step Procedure For Details, Refer toInstallation Considerations Installation TypeFlat vs. Curved Screens Ambient Light Other ConsiderationsThrow Distance Throw Ratio Throw Distance Range Lens Option Note Throw Dist Screen Width Minimum MaximumVertical and Horizontal PositionLens Shift Vertical Lens Shift Adjusting the Projection AngleMounting Folded OpticsConnector Panel Access Connecting the VX-2i toConnections to VX-2iDigital DTV RGB Connections See Figure Digital DTV RGB ConnectionsAnalog Computer RGB Connections See Figure Analog RGB ConnectionsComposite/S-Video/Component Video Connections See Figure 10. Composite, S-Video and Component Video ConnectionsConnecting 12-Volt RS-232 ControllerConnection Trigger Outputs toTurning on the Power Adjusting the Picture OrientationOperation Lens Adjustments Using the On-Screen MenusFocus Zoom Shift ISF Presets ServiceInput Source Aspect RatioMain Menu Input SourceAspect Ratio Input Source Composite Video Component SDAspect Ratio Settings Remote Aspect Ratio Control Description KeyPicture Picture Brightness Contrast Color Tint SharpnessTypical Gray Bar Pattern for Adjusting Contrast Gray Yellow Cyan Green Magenta Red Blue Input Position Input Position Left/Right Up/Down Width Height OverscanISF Presets InformationCalibration Should be used by ISF-certified technicians onlyOperation Service Tip Operation Maintenance and Troubleshooting Lamp Replacement Troubleshooting TipsSymptom Possible Causes Solution Maintenance and Troubleshooting RS-232 Connection and Port Configuration Serial Command SyntaxCommand Parameter Value Description Min/max Stored? Serial CommunicationsSerial Communications Night YES SHARPNESS? Specifications VX-2i SpecificationsHome Theater Calibration Specifications Industry-Standard SpecificationsPower Requirements DimensionsLimited Warranty Specifications are subject to change without noticeVX-2i Dimensions VX-2i DimensionsPage Runco CL-810 Owner’s Operating Manual