SECTION 11139
REAR PROJECTION SYSTEMS
***** Draper, Inc. manufactures the following systems and components for rear projection installations:
Rear Projection Systems (RPX) - System for supporting and accurately positioning projector and mirror in relationship to each other and to rear projection screen. There are four types of Rear Projection System:
RPX - Allows for field adjusting tilt and height of projected image.
RPX/Precision - Provides high precision adjustment in all six axes.
RPX/Lite - Lightweight frame for projectors weighing less than 50 pounds and
small mirror sizes. Usually requires more depth in a rear projection room.
RPX/Complete – Frame and rear projection screen attached to RPX unit,
Allowing for easier alignment between all three plains of the projector, mirror,
and screen.
Rear Projection Cabinets/Retro QA - Self-contained, transportable cabinets with
screen, projector cradle, mirror, and cooling fan.
Retro/QA can accommodate screens 40 to 200 inches (102 to 508 cm) diagonalaMultiScreen Systems - All-in-one, self-supporting display systems with multiple projector cradles, mirrors, and screens.
Rear Projector Support Structures - Steel framed system for supporting multiple projectors in an array to be used in conjunction with a video wall of multiple screens. Accessory components for Rear Projector Support Structures include Projector Alignment Platforms, Projector Transport Mechanisms, Electric Chain Hoist and Gliding Trolley, and Rolling Scaffolds, Reinforced mirrors, and other custom capabilities.
These systems and accessories are custom designed and manufactured to meet specific project requirements. They are typically used in conjunction with rigid rear projection screens and video walls specified in SECTION 11138 - REAR PROJECTION SCREENS but can also be used with flexible viewing surface rear projection screens specified in SECTIONS 11131 - MANUALLY OPERATED PROJECTION SCREENS, SECTION 11132 - MOTORIZED PROJECTION SCREENS, and SECTION 11134 - PERMANENTLY TENSIONED PROJECTION SCREENS.
PART 1 - GENERAL
1.1SUMMARY
A.Section includes custom designed and manufactured:
***** Edit the following list to reflect scope of products being specified, *****
1.Rear projection systems for supporting and positioning projector and mirror in relationship to each other and to rear projection screen.
2.Self-contained, transportable rear projection cabinets with screen projector cradle, mirror, and cooling fan.
3.Self-supporting multi-screen systems with multiple projectors cradles, mirrors, and screens.
4.Structures for supporting multiple projectors in an array to be used in conjunction with a video wall.
B.Related sections:
***** List other specification sections dealing with work directly related to this section such as the following. *****
1.Section 11134 - Permanently Tensioned Projection Screens: Permanently installed rear projection screens with flexible viewing surfaces to be used with rear projection accessories.
2.Section 11138 - Rear Projection Screens: Fixed, rigid rear projection screens [used with rear projection systems] [mounted in multiple screen video wall framing system].
1.2SUBMITTALS
A.Submit in accordance with Section 01330 - Submittal Procedures:
1.List of proposed products and product data.
2.Shop drawings showing layout, configurations, dimensions, fabrication, and assembly and installation details.
3.Samples of [framing members] [finishes].
4.Manufacturer's installation and maintenance instructions.
1.3SYSTEM DESCRIPTION
A.Supporting systems for rear projection [screens] [mirrors] [projector supports] shall be fabricated from modular components and be factory or site assembled to configurations indicated on Drawings. [Quantities of screens, projector supports, and mirrors shall be as indicated on Drawings.]
B.Rear projection systems shall be custom designed and fabricated by manufacturer to fit within and conform to rear projection rooms and viewing areas indicated on Drawings. Spacing, layout, and mounting angles for projectors and mirrors shall be designed to accurately project images on size of rear projection screens being installed.
C.Supporting structures shall be nominal dimensions shown on Drawings. Minor variations to accommodate manufacturer's standard components are acceptable.
D.Provide all required components for complete, functional installation including but not limited to [support framing] [projector cradles] [mirrors] [screens] [electrical wiring] [fasteners] [anchors] [_____].
1.4QUALITY ASSURANCE
***** If rigid rear projection screens such as Draper Cineglass, Cineplex, IRUS,Vortex, or DiamondScreen Rear Projection Screen are field installed, work should be by experienced glazier. Include the following paragraph for rigid screens field installed in frames. *****
A.Field installation of rear projection screens in frames shall be performed by experienced glazier [in accordance with requirements specified in Section 08800 - Glazing].
1.5DELIVERY, STORAGE, AND HANDLING
A.Do not deliver rear projection systems and accessories until building is enclosed and construction within spaces where screens will be installed is substantially complete.
B.Deliver products in manufacturer's original, unopened, undamaged containers with labels intact.
PARTS 2 - PRODUCTS
2.1ACCEPTABLE MANUFACTURERS
A.Draper, Inc., 411 South Pearl Street, Spiceland, Indiana 47385-0425; 765-987-7999.
B.Manufacturers of equivalent products submitted and approved in accordance with Section 01630 - Product Substitution Procedures.
2.2REAR PROJECTION SYSTEM
***** A rear projection system (RPX) consists of a custom designed projector cradle, mirror, and a support structure that accurately positions projector and mirror in precise relationship to each other and to rear projection screen in order to provide high quality projected images. A rear projection assembly minimizes the floor space required behind the screen. Rear projection systems are custom designed and fabricated to suit type of projector, screen size, and room dimensions. Rear projection systems are factory preset for specific project conditions. One or two mirrors can be used. Projector can be aligned perpendicular to mirror or positioned to the side of the mirror. Contact Draper, Inc. for assistance in determining requirements and selecting options of customized rear projection systems. Draper, Inc. manufactures three types of rear projection system:
RPX - Allows for field adjusting tilt and height of image on screen without special tools. Dark Blue finish.
RPX/Precision - Provides high precision image alignment and fine-tuning of projector position in six axes. Dark Blue finish.
RPX/Complete – Rear projection screen and framing attached to RPX unit, allowing
for easier alignment between all three plains of the projector, mirror and screen.
Dark Blue finish.
RPX/Lite - Lightweight frame for projectors weighing less than 50 pounds and small mirror sizes. Usually requires more depth in a rear projection room. Black powdercoat finish.
A.Type: [System for positioning and supporting projector and mirror; [RPX] [RPX/Precision] [System for positioning and supporting projector, mirror and screen; RPX/Complete] [RPX/Lite] - Rear Projection System as custom designed and manufactured by Draper, Inc. System designed to fold light from projector by means of a mirror and project image on rear projection screen provided under [RPX/Complete Section below] [Section 11134 - Permanently Tensioned Projection Screens] [Section 11138 - Rear Projection Screens]
B.Configuration: [System to use [1] [2] mirrors placed at [right] [_____] angle to projector lens. Projector to be placed [at floor level] [in raised position in same horizontal plane as mirror].] [Refer to Drawings for layout.]
C.Framing: Components fabricated from extruded aluminum with [Dark Blue anodized] [Black powdercoat (RPX/Lite Only)] finish. Letter code components for site assembly.
***** RPX - Rear Projection Systems are custom designed for type of projector. Provide manufacturer and model number for projector to be used with system. Projectors for RPX Lite cannot weigh more than 50 pounds, and will feature small mirror requiring more depth than the typical RPX. *****
D.Projector support cradle: Adjustable mounting platform custom designed to accommodate [_____] type projector, Model [_____], as manufactured by [_____]. Fabricate from [11 gauge] [3 mm] steel sheet and black powdercoat finish.
1.Equip with adapter brackets and mounting hardware for specified projector. Black powdercoat finish.
2.Provide pivot plate for image height adjustment.
3.Cradle and pivot plate equipped with alignment hole to position projector in pre-determined, factory set, tilt position. Black powdercoat finish.
***** RPX, RPX/Precision and RPX/Complete - Rear Projection Systems can be provided with an optional Mirror Manager mirror adjustment system. *****
E.Mirror Manager: Mirror adjustment system designed to provide fine tune adjustments to the image. Knobs allow individual adjustments for each corner or side of image.
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***** Include the following two paragraphs for Model RPX. *****
1.Blue X extrusion is a full [2 inches] [50.8 mm] square cross-section aluminum extruded shape, fabricated from 6061-T6 alloy. Extrusion has profile area of [1.288 inches] [32.7 mm] square.
2.Finger-operated adjustment lever and calibrated pivot plate allow precise tilt-axis adjustment without special tools.
3.Microfine fingertip height adjuster to allow infinite height adjustment.
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***** Include the following paragraph for RPX/Precision. *****
1.Blue X extrusion is a full [2 inches] [50.8 mm] square cross-section aluminum extruded shape, fabricated from 6061-T6 alloy. Extrusion has profile area of [1.288 inches] [32.7 mm] square.
2.Provide alignment platform for front-to-back, side-to-side, roll, yaw, and pitch adjustment.
***** Include the following two paragraphs for Model RPX/Complete. *****
1.Blue X extrusion is a full [2 inches] [50.8 mm] square cross-section aluminum extruded shape, fabricated from 6061-T6 alloy. Extrusion has profile area of [1.288 inches] [32.7 mm] square.
2.Finger-operated adjustment lever and calibrated pivot plate allow precise tilt-axis adjustment without special tools.
3.Microfine fingertip height adjuster to allow infinite height adjustment.
4.Rear ScreenType: [Cineplex] [IRUS - Infinite Resolution Uniformity Screen] [Vortex] [DiamondScreen] as manufactured by Draper, Inc.
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F.Mirror: First surface glass, 94 percent reflective optical grade, sized to accommodate specified rear projection screen and rear projection area layout.
1.Mount in aluminum perimeter frame with calibrated stamped steel pivot plate adjustable to proper angle for accurately folding projected image from projector to rear projection screen.
2.Provide gasket in perimeter frame to eliminate steel to glass contact and allow for thermal expansion and contraction.
3.Reinforced with structural support to assure mirror flatness. Mirror without reinforcement is not acceptable. Composite reinforcement may be recommended on exceptionally large mirrors.
2.3REAR PROJECTION CABINETS
***** Draper, Inc. manufactures self-contained, transportable, rear projection cabinets consisting of enclosure with screen, projector cradle, mirror, and cooling fan. Retro/QA can accommodate screens 40 to 200 inches (102 to 508 cm) diagonal. *****
A.Type: Self-contained, transportable, rear projection cabinet consisting of enclosure with screen, projector cradle, mirror, and cooling fan; Retro/QA Rear Projection Cabinet as manufactured by Draper, Inc.
B.Enclosure: Upper and lower rectangular cabinet modules. Disassembles for transport and storage.
***** Retro/QA is custom designed based on choice of projector and screen. Contact Draper, Inc. for actual size to be provided. *****
1.Size: [[_____] inches wide by [_____] inches deep by [_____] inches high.] [[_____] mm wide by [_____] mm deep by [_____] mm high.]
2.Finish: Black plastic laminate.
***** Include the following paragraph if optional casters are required. *****
3.Equip enclosure with four [3 inches] [76 mm] diameter urethane casters.
***** Projector cradles are custom fitted for type of projector. Provide manufacturer and model number for projector to be used with system. *****
C.Projector support cradle: Adjustable mounting platform custom designed to accommodate [_____] type projector, Model [_____], as manufactured by [_____]. Fabricate from [10 gauge] [3.2 mm] steel sheet with black powdercoat finish.
D.Mirror: First surface glass, 94 percent reflective optical grade mirror mounted in aluminum, perimeter, adjustable frame. Provide gasket to eliminate aluminum to glass contact and allow for thermal expansion and contraction.
***** Rear projection screens for cabinets can be either Cineplex, IRUS,Vortex, or DiamondScreen Rear Projection Screen. As an option, Zero Edge Seamless Framing can be provided for all four screens so that multiple cabinets can be arranged side-by-side to form a seamless, portable video wall.
E.Screen: Rear projection screen provided under Section 11138 - Rear Projection Screens:
1.Type: [Cineplex] [IRUS - Infinite Resolution Uniformity Screen] [DiamondScreen] [Vortex] as manufactured by Draper, Inc.
Retro/QA can accommodate screens 40 to 200 inches (102 to 508 cm) diagonal in a 4:3 format. *****
2.Size: [_____] [inches] [mm] diagonal screen.
***** Include the following paragraph to specify option for Zero Edge Seamless Framing. *****
3.Frame cabinet screen with Zero Edge Seamless Framing System as manufactured by Draper, Inc. to allow multiple cabinets to be positioned side-by-side to form optically seamless, portable video wall.
***** Cabinet cooling fans are provided with 110V power. 220V fans are available as an option. ******
F.Cooling fans: Dual axial, [110V] [220V], 50 CFM fans with 28 dba maximum noise level. Provide enclosure cabinet with supply and exhaust air ports.
G.Power strip: Equip cabinet with four outlet, grounded, surge protected power strip.
***** Include the following paragraph if optional speaker assembly is being specified. *****
H.Speaker assembly: Two [8 inches] [203 mm] speakers with wire assembly and hardware.
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2.4SYSTEMS WITH MULTIPLE REAR PROJECTORS AND SCREENS
***** Draper, Inc. custom fabricates all-in-one, self-supporting information display systems consisting of modular units with multiple rear projector screens, projector cradles, and mirrors if required to fold projected light. All components are positioned in the exact required relationship to each other to provide high quality projected images. Use this article to specify Draper MultiScreen System. *****
A.Type: Custom designed and fabricated system for positioning and supporting multiple projectors, mirrors, and rear projection screens in a vertical arrangement; MultiScreen System as custom designed and manufactured by Draper, Inc.
***** MultiScreen System modules can be arranged in a straight line or curved panoramic arch layout. Layout and nominal dimensions should be indicated on Drawings. *****
B.Configuration: [__(quantity)__], all-in-one, self supporting, modular units to be positioned side by side in [straight line] [panoramic arch] according to layout and dimension indicated on Drawings. Each modular unit designed to accommodate:
***** Draper MultiScreen Systems are available with 2, 3, or 4 screens placed one above the other in vertical alignment. Upper screens may be tilted if screens are arranged in a straight line. The units can employ straight projection shoot or mirrored projection. *****
1.[2] [3] [4] rear projection screens: Screens to be located one above the other in vertical alignment [with top screen tilted]. Provide solid panel supporting sill.
***** Projector cradles are custom fitted for type of projector. Provide manufacturer and model number for projector to be used with system. *****
2.[2] [3] [4] projector cradles: Mounting bracket and adjustable, pivoting aluminum plate for [_____] type projector, Model [_____], as manufactured by [_____]. Projector cradles to provide front-to-back, side-to-side, roll, yaw, and pitch adjustment of projected image and to facilitate edge-matching of multiple projected images. System designed such that any projector can be removed without disturbing balance of system.
3.[2] [3] [4] mirrors: First surface 94 percent reflective optical grade mirror sized to accommodate rear projection screen. Mount in frame at proper angle to accurately fold projected image from projector to rear projection screen. Reinforced with structural support to assure mirror flatness. Mirror without reinforcement is not acceptable. Composite reinforcement may be recommended on exceptionally large mirrors.
C.Framing: Components fabricated from unitized rectangular steel tubing with welded connections and black powder-coated paint finish. Code components for site assembly. Equip frames with heavy-duty leveling feet and predrilled anchor points.
***** Draper Cineplex, IRUS,Vortex, or DiamondScreen Rear Projection Screen rear projection screens are used with MultiScreen Systems. Screens may be specified in SECTION 11138 - REAR PROJECTION SCREENS or screen requirements can be included in this section.
As an option, Zero Edge Seamless Framing can be provided for all four screens so that multiple screens up to 150 inches (381 cm) diagonal can be arranged side-by side to form a seamless, portable video wall.
D.Screens: Rear projection screens provided under Section 11138 - Rear Projection Screens:
1.Type: [Cineplex] [IRUS - Infinite Resolution Uniformity Screen] [DiamondScreen] [Vortex] as manufactured by Draper, Inc.
***** Screen sizes for MultiScreen Systems can vary from 30 to 135 inches (762 to 3429 mm) diagonal, and up to 150 inches (381 cm) diagonal for Zero Edge Seamless Framing. Refer to Draper product literature for standard screen sizes. *****
2.Size: [_____] [inches] [mm] diagonal screen.
***** MultiScreen Systems are framed with either Zero Edge Seamless Framing or Clear Lexan Framing System so that multiple modules can be arranged side-by side to form an optically seamless video wall. *****
3.Frame cabinet screen with [Zero Edge Seamless Framing System] [ Clear Lexan Framing System] as manufactured by Draper, Inc. to allow multiple cabinets to be positioned side-by-side to form optically seamless, portable video wall.
***** A two or three tiered rolling scaffold can be specified to provide access to upper level projectors installed in a Multi-Screen System. Include the following paragraph to specify the option for Rolling Scaffold. *****
E.Rolling scaffold: [Two-tiered] [Three-tiered], steel framed, rolling scaffold to provide access to upper level projectors; Rolling Scaffold as manufactured by Draper, Inc. Attach rail to rear of projector support structure for guiding rolling scaffold. Rail to extend across full width of projector support structure.
***** MultiScreen Systems, can be completely enclosed with panels. Options for panels are sound attenuating textile type or plastic laminate faced type. Contact Draper, Inc. for assistance in selecting and specifying cladding for a specific project. Include the following paragraph to specify the option for cladding. *****
F.Cladding: Provide modular cladding panels to enclose rear projector support structure as detailed on Drawings.
1.Type: [Sound attenuating textile] [Plastic laminate faced] [_____].
2.Size: [_____] wide by [_____] high. [As required to completely enclose support structure.]
3.Color: [_____] [As selected by Architect from manufacturer's standard range.]